C++ Defect Report Support in Clang

C++ defect report implementation status

This page tracks which C++ defect reports are implemented within Clang.

Number Status Issue title Available in Clang?
1 TC1 What if two using-declarations refer to the same function but the declarations introduce different default-arguments? No
2 drafting How can dependent names be used in member declarations that appear outside of the class template definition? Not resolved
3 NAD The template compilation model rules render some explicit specialization declarations not visible during instantiation Yes
4 CD1 Does extern "C" affect the linkage of function names with internal linkage? Clang 2.8
5 CD1 CV-qualifiers and type conversions Clang 3.1
6 NAD Should the optimization that allows a class object to alias another object also allow the case of a parameter in an inline function to alias its argument? Unknown
7 NAD Can a class with a private virtual base class be derived from? Clang 3.4
8 CD1 Access to template arguments used in a function return type and in the nested name specifier Duplicate of 45
9 CD1 Clarification of access to base class members Clang 2.8
10 CD1 Can a nested class access its own class name as a qualified name if it is a private member of the enclosing class? Duplicate of 45
11 CD1 How do the keywords typename/template interact with using-declarations? Yes
12 dup Default arguments on different declarations for the same function and the Koenig lookup Superseded by 239
13 NAD extern "C" for Parameters of Function Templates No
14 NAD extern "C" functions and declarations in different namespaces Clang 3.4
15 dup Default arguments for parameters of function templates Yes
16 CD1 Access to members of indirect private base classes Clang 2.8
17 NAD Footnote 99 should discuss the naming class when describing members that can be accessed from friends Yes
18 NAD f(TYPE) where TYPE is void should be allowed Superseded by 577
19 NAD Clarify protected member access Clang 3.1
20 TC1 Some clarifications needed for 12.8 para 15 Clang 2.8
21 TC1 Can a default argument for a template parameter appear in a friend declaration? Clang 3.4
22 TC1 Template parameter with a default argument that refers to itself Superseded by 481
23 NAD Some questions regarding partial ordering of function templates Yes
24 TC1 Errors in examples in 14.7.3 N/A
25 TC1 Exception specifications and pointers to members Yes
26 NAD Copy constructors and default arguments Yes
27 NAD Overload ambiguities for builtin ?: prototypes Yes
28 CD1 'exit', 'signal' and static object destruction N/A (Library DR)
29 CD1 Linkage of locally declared functions Clang 3.4
30 TC1 Valid uses of "::template" Superseded by 468 (C++11 onwards)
31 NAD Looking up new/delete Clang 2.8
32 TC1 Clarification of explicit instantiation of non-exported templates N/A
33 TC1 Argument dependent lookup and overloaded functions Clang 9
34 NAD Argument dependent lookup and points of instantiation N/A
35 TC1 Definition of default-initialization Duplicate of 178
36 CD6 using-declarations in multiple-declaration contexts Clang 2.8
37 NAD When is uncaught_exception() true? Superseded by 475
38 TC1 Explicit template arguments and operator functions Yes
39 CD1 Conflicting ambiguity rules No
40 TC1 Syntax of declarator-id N/A
41 TC1 Clarification of lookup of names after declarator-id Yes
42 NAD Redefining names from base classes Yes
43 TC1 Copying base classes (PODs) using memcpy N/A
44 CD1 Member specializations Superseded by 727
45 CD1 Access to nested classes Yes
46 NAD Explicit instantiation of member templates Yes
47 NAD Template friend issues Superseded by 329
48 TC1 Definitions of unused static members Yes
49 TC1 Restriction on non-type, non-value template arguments Clang 2.8
50 NAD Converting pointer to incomplete type to same type Yes
51 TC1 Overloading and user-defined conversions Clang 2.8
52 TC1 Non-static members, member selection and access checking Clang 2.8
53 TC1 Lvalue-to-rvalue conversion before certain static_casts Yes
54 CD1 Static_cast from private base to derived class Clang 2.8
55 NAD Adding/subtracting pointer and enumeration value Yes
56 TC1 Redeclaring typedefs within classes Yes
57 open Empty unions Not resolved
58 CD1 Signedness of bit fields of enum type Clang 3.1
59 TC1 Clarification of overloading and UDC to reference type Yes
60 CD1 Reference binding and valid conversion sequences Yes
61 NAD Address of static member function "&p->f" Clang 3.4
62 CD1 Unnamed members of classes used as type parameters Clang 2.9
63 CD1 Class instantiation from pointer conversion to void*, null and self Yes
64 TC1 Partial ordering to disambiguate explicit specialization Yes
65 TC1 Typo in default argument example N/A
66 NAD Visibility of default args vs overloads added after using-declaration No
67 TC1 Evaluation of left side of object-expression N/A
68 TC1 Grammar does not allow "friend class A<int>;" Clang 2.8
69 TC1 Storage class specifiers on template declarations Clang 9
70 CD1 Is an array bound a nondeduced context? Yes
71 NAD Incorrect cross reference N/A
72 dup Linkage and storage class specifiers for templates Duplicate of 69
73 TC1 Pointer equality Superseded by 1652
74 TC1 Enumeration value in direct-new-declarator Yes
75 TC1 In-class initialized members must be const Yes
76 TC1 Are const volatile variables considered "constant expressions"? Yes
77 CD1 The definition of friend does not allow nested classes to be friends Yes
78 CD1 Section 8.5 paragraph 9 should state it only applies to non-static objects Superseded by ????
79 dup Alignment and placement new N/A
80 TC1 Class members with same name as class Clang 2.9
81 NAD Null pointers and C compatibility N/A
82 dup Definition of "using" a constant expression Duplicate of 48
83 TC1 Overloading and deprecated conversion of string literal Yes
84 TC1 Overloading and conversion loophole used by auto_ptr Yes
85 TC1 Redeclaration of member class Clang 3.4
86 CD1 Lifetime of temporaries in query expressions Duplicate of 446
87 CD1 Exception specifications on function parameters No
88 NAD Specialization of member constant templates Clang 2.8
89 TC1 Object lifetime does not account for reference rebinding N/A
90 TC1 Should the enclosing class be an "associated class" too? Yes
91 NAD A union's associated types should include the union itself Yes
92 CD4 Should exception-specifications be part of the type system? Clang 4 (C++17 onwards)
93 TC1 Missing word in 3.8 basic.life paragraph 2 N/A
94 TC1 Inconsistencies in the descriptions of constant expressions Yes
95 NAD Elaborated type specifiers referencing names declared in friend decls Clang 3.3
96 C++11 Syntactic disambiguation using the template keyword Superseded by P1787
97 NAD Use of bool constants in integral constant expressions Yes
98 TC1 Branching into try block Yes
99 NAD Partial ordering, references and cv-qualifiers Superseded by 214
100 TC1 Clarify why string literals are not allowed as template arguments Yes
101 TC1 Redeclaration of extern "C" names via using-declarations Clang 3.5
102 NAD Operator lookup rules do not work well with parts of the library Yes
103 TC1 Is it extended-namespace-definition or extension-namespace-definition ? N/A
104 NAD Destroying the exception temp when no handler is found N/A (Library DR)
105 TC1 Meaning of "template function" N/A
106 CD1 Creating references to references during template deduction/instantiation Superseded by 540
107 NAD Linkage of operator functions Yes
108 TC1 Are classes nested in templates dependent? Clang 2.9
109 NAD Allowing ::template in using-declarations Yes
110 CD6 Can template functions and classes be declared in the same scope? Unknown
111 NAD Copy constructors and cv-qualifiers Duplicate of 535
112 CD1 Array types and cv-qualifiers Yes
113 CD1 Visibility of called function Yes
114 NAD Virtual overriding by template member function specializations Yes
115 CD1 Address of template-id Clang 3.0
116 TC1 Equivalent and functionally-equivalent function templates Yes
117 NAD Timing of destruction of temporaries N/A
118 CD1 Calls via pointers to virtual member functions Yes
119 CD1 Object lifetime and aggregate initialization N/A
120 TC1 Nonexistent non-terminal qualified-name N/A
121 TC1 Dependent type names with non-dependent nested-name-specifiers Yes
122 CD1 template-ids as unqualified-ids Yes
123 TC1 Bad cross-reference N/A
124 CD1 Lifetime of temporaries in default initialization of class arrays Clang 2.7
125 CD1 Ambiguity in friend declaration syntax Yes
126 TC1 Exception specifications and const Partial
127 TC1 Ambiguity in description of matching deallocation function Clang 2.9
128 TC1 Casting between enum types Yes
129 CD3 Stability of uninitialized auto variables Duplicate of 616
130 NAD Sequence points and new-expressions N/A
131 TC1 Typo in Lao characters Superseded by P1949
132 NAD Local types and linkage No
133 dup Exception specifications and checking Duplicate of 87
134 TC1 Template classes and declarator-ids N/A
135 TC1 Class type in in-class member function definitions Yes
136 CD1 Default arguments and friend declarations Clang 3.4
137 TC1 static_cast of cv void* Yes
138 CD6 Friend declaration name lookup Unknown
139 CD1 Error in friend lookup example Yes
140 CD1 Agreement of parameter declarations Yes
141 CD1 Non-member function templates in member access expressions Clang 3.1
142 TC1 Injection-related errors in access example Clang 2.8
143 CD1 Friends and Koenig lookup Yes
144 open Position of friend specifier Not resolved
145 TC1 Deprecation of prefix ++ Yes
146 open Floating-point zero Not resolved
147 TC1 Naming the constructor Yes
148 TC1 POD classes and pointers to members Yes
149 TC1 Accessibility and ambiguity N/A
150 C++17 Template template parameters and default arguments Clang 19
151 TC1 Terminology of zero-initialization Clang 3.1
152 TC1 explicit copy constructors Yes
153 TC1 Misleading wording (rank of conversion) N/A
154 NAD Anonymous unions in unnamed namespaces Yes
155 dup Brace initializer for scalar Duplicate of 632
156 NAD Name lookup for conversion functions Unknown
157 open Omitted typedef declarator Not resolved
158 CD1 Aliasing and qualification conversions Yes
159 TC1 Namespace qualification in declarators Clang 3.5
160 CD1 Missing std:: qualification N/A
161 TC1 Access to protected nested type Clang 3.1
162 CD1 (&C::f)() with nonstatic members Clang 19
163 TC1 Description of subaggregate initializer N/A
164 TC1 Overlap between Koenig and normal lookup Yes
165 NAD Definitions of friends and block-scope externs No
166 TC1 Friend declarations of template-ids Clang 2.9
167 NAD Deprecating static functions Superseded by 1012
168 NAD C linkage for static member functions No
169 NAD template-ids in using-declarations Yes
170 DRWP Pointer-to-member conversions Unknown
171 TC1 Global namespace scope Clang 3.4
172 CD1 Unsigned int as underlying type of enum Yes
173 TC1 Constraints on execution character set Yes
174 NAD Undeprecating global static Superseded by 1012
175 CD1 Class name injection and base name access Clang 2.8
176 TC1 Name injection and templates Clang 3.1
177 CD1 Lvalues vs rvalues in copy-initialization Yes
178 TC1 More on value-initialization Yes
179 TC1 Function pointers and subtraction Yes
180 CD1 typename and elaborated types Clang 2.8
181 TC1 Errors in template template-parameter example Yes
182 NAD Access checking on explicit specializations Clang 14
183 TC1 typename in explicit specializations Superseded by 382
184 CD1 Default arguments in template template-parameters Yes
185 TC1 "Named" temporaries and copy elision Clang 2.7
186 open Name hiding and template template-parameters Not resolved
187 TC1 Scope of template parameter names Superseded by 481
188 TC1 Comma operator and rvalue conversion Yes
189 drafting Definition of operator and punctuator Not resolved
190 TC1 Layout-compatible POD-struct types Unknown
191 CD6 Name lookup does not handle complex nesting Yes
192 NAD Name lookup in parameters Unknown
193 TC1 Order of destruction of local automatics of destructor Clang 2.7
194 TC1 Identifying constructors Yes
195 CD1 Converting between function and object pointers Yes
196 open Arguments to deallocation functions Not resolved
197 CD1 Issues with two-stage lookup of dependent names Yes
198 CD1 Definition of "use" in local and nested classes Yes
199 CD1 Order of destruction of temporaries Clang 2.8
200 dup Partial ordering and explicit arguments Duplicate of 214
201 CD1 Order of destruction of temporaries in initializers Clang 2.8
202 TC1 Use of overloaded function name Clang 3.1
203 NAD Type of address-of-member expression Unknown
204 CD1 Exported class templates No
205 drafting Templates and static data members Not resolved
206 TC1 Semantic constraints on non-dependent names Yes
207 CD1 using-declarations and protected access Yes
208 CD1 Rethrowing exceptions in nested handlers Unknown
209 NAD Must friend declaration names be accessible? Clang 3.2
210 TC1 What is the type matched by an exception handler? Clang 2.7
211 NAD Constructors should not be allowed to return normally after an exception Yes
212 CD4 Implicit instantiation is not described clearly enough Unknown
213 TC1 Lookup in dependent base classes Yes
214 CD1 Partial ordering of function templates is underspecified Yes
215 CD1 Template parameters are not allowed in nested-name-specifiers Clang 2.9
216 CD1 Linkage of nameless class-scope enumeration types No
217 TC1 Default arguments for non-template member functions of class templates Yes
218 CD1 Specification of Koenig lookup Yes
219 NAD Cannot defend against destructors that throw exceptions N/A
220 CD1 All deallocation functions should be required not to throw N/A
221 CD1 Must compound assignment operators be member functions? Clang 3.6
222 CD1 Sequence points and lvalue-returning operators Duplicate of 637
223 CD3 The meaning of deprecation N/A
224 CD1 Definition of dependent names Clang 16
225 NAD Koenig lookup and fundamental types Yes
226 CD1 Default template arguments for function templates No
227 TC1 How many scopes in an if statement? Yes
228 CD1 Use of template keyword with non-member templates Yes
229 NAD Partial specialization of function templates Clang 2.9
230 NAD Calls to pure virtual functions Clang 3.0
231 NAD Visibility of names after using-directives Yes
232 NAD Is indirection through a null pointer undefined behavior? Unknown
233 tentatively ready References vs pointers in UDC overload resolution Not resolved
234 NAD Reuse of base class subobjects N/A
235 TC1 Assignment vs initialization N/A
236 NAD Explicit temporaries and integral constant expressions Clang 3.2
237 CD1 Explicit instantiation and base class members Duplicate of 470
238 CD4 Precision and accuracy constraints on floating point Unknown
239 CD1 Footnote 116 and Koenig lookup Yes
240 CD3 Uninitialized values and undefined behavior Duplicate of 616
241 TC1 Error in example in 14.8.1 Yes
242 CD4 Interpretation of old-style casts Unknown
243 NAD Weighting of conversion functions in direct-initialization Yes
244 CD1 Destructor lookup Clang 11
245 CD1 Name lookup in elaborated-type-specifiers Yes
246 CD1 Jumps in function-try-block handlers Clang 3.2
247 NAD Pointer-to-member casts and function overload resolution Yes
248 C++11 Identifier characters Superseded by P1949
249 TC1 What is a member function template? Yes
250 TC1 Address of function template specialization with non-deduced template arguments Yes
251 open How many signed integer types are there? Not resolved
252 CD1 Looking up deallocation functions in virtual destructors Clang 3.1
253 C++17 Why must empty or fully-initialized const objects be initialized? Unknown
254 CD1 Definitional problems with elaborated-type-specifiers Clang 2.9
255 CD6 Placement deallocation functions and lookup ambiguity Yes
256 CD1 Overflow in size calculations Duplicate of 624
257 CD2 Abstract base constructors and virtual base initialization Clang 3.4
258 CD1 using-declarations and cv-qualifiers Clang 2.8
259 CD1 Restrictions on explicit specialization and instantiation Clang 4
260 open User-defined conversions and built-in operator= Not resolved
261 CD1 When is a deallocation function "used?" No
262 CD1 Default arguments and ellipsis Yes
263 CD1 Can a constructor be declared a friend? Clang 3.3
264 open Unusable template constructors and conversion functions Not resolved
265 dup Destructors, exceptions, and deallocation Duplicate of 353
266 NAD No grammar sentence symbol N/A
267 open Alignment requirement for new-expressions Not resolved
268 open Macro name suppression in rescanned replacement text Not resolved
269 NAD Order of initialization of multiply-defined static data members of class templates N/A
270 CD1 Order of initialization of static data members of class templates N/A
271 CD6 Explicit instantiation and template argument deduction Unknown
272 CD1 Explicit destructor invocation and qualified-ids Yes
273 CD1 POD classes and operator&() Yes
274 CD1 Cv-qualification and char-alias access to out-of-lifetime objects N/A
275 CD1 Explicit instantiation/specialization and using-directives No
276 CD1 Order of destruction of parameters and temporaries N/A
277 CD1 Zero-initialization of pointers Clang 3.1
278 NAD External linkage and nameless entities Unknown
279 CD6 Correspondence of "names for linkage purposes" Unknown
280 CD1 Access and surrogate call functions Clang 2.9
281 CD1 inline specifier in friend declarations No
282 open Namespace for extended_type_info Not resolved
283 CD1 Template type-parameters are not syntactically type-names Yes
284 CD1 qualified-ids in class declarations No
285 NAD Identifying a function template being specialized Yes
286 CD1 Incorrect example in partial specialization Clang 2.8
287 drafting Order dependencies in template instantiation Not resolved
288 CD1 Misuse of "static type" in describing pointers N/A
289 CD1 Incomplete list of contexts requiring a complete type Yes
290 NAD Should memcpy be allowed into a POD with a const member? N/A
291 CD1 Overload resolution needed when binding reference to class rvalue Duplicate of 391
292 CD3 Deallocation on exception in new before arguments evaluated Clang 2.9
293 open Syntax of explicit instantiation/specialization too permissive Not resolved
294 NAD Can static_cast drop exception specifications? No
295 CD1 cv-qualifiers on function types Clang 3.7
296 CD1 Can conversion functions be static? Yes
297 NAD Which template does an explicit specialization specialize? Unknown
298 CD1 T::x when T is cv-qualified Clang 3.1
299 CD1 Conversion on array bound expression in new Clang 2.8 (C++11 onwards)
300 CD1 References to functions in template argument deduction Yes
301 CD1 Syntax for template-name Clang 3.5
302 CD1 Value-initialization and generation of default constructor Clang 3.0
303 NAD Integral promotions on bit-fields N/A
304 TC1 Value-initialization of a reference Clang 2.9
305 CD1 Name lookup in destructor call No
306 CD1 Ambiguity by class name injection Duplicate of 39
307 NAD Initialization of a virtual base class subobject N/A
308 NAD Catching exceptions with ambiguous base classes Clang 3.7
309 CD1 Linkage of entities whose names are not simply identifiers, in introduction Duplicate of 485
310 open Can function templates differing only in parameter cv-qualifiers be overloaded? Not resolved
311 NAD Using qualified name to reopen nested namespace Clang 3.0
312 CD3 “use” of invalid pointer value not defined Duplicate of 616
313 dup Class with single conversion function to integral as array size in new Duplicate of 299 (C++11 onwards)
314 C++17 template in base class specifier No
315 NAD Is call of static member function through null pointer undefined? N/A
316 NAD Injected-class-name of template used as template template parameter Superseded by 1004
317 CD1 Can a function be declared inline after it has been called? Clang 3.5
318 CD1 struct A::A should not name the constructor of A Superseded by 1310
319 CD1 Use of names without linkage in declaring entities with linkage No
320 CD1 Question on copy constructor elision example Yes
321 dup Associated classes and namespaces for argument-dependent lookup Duplicate of 557
322 CD1 Deduction of reference conversions Clang 2.8
323 CD1 Where must export appear? No
324 CD1 Can "&" be applied to assignment to bit-field? Clang 3.6
325 drafting When are default arguments parsed? Not resolved
326 CD1 Wording for definition of trivial constructor Clang 3.1
327 CD1 Use of "structure" without definition Duplicate of 538
328 CD1 Missing requirement that class member types be complete Yes
329 CD1 Evaluation of friends of templates Clang 3.5
330 CD4 Qualification conversions and pointers to arrays of pointers Clang 7
331 CD1 Allowed copy constructor signatures Clang 11
332 CD3 cv-qualified void parameter types Duplicate of 577
333 NAD Ambiguous use of "declaration" in disambiguation section Yes
334 NAD Is a comma-expression dependent if its first operand is? Yes
335 CD1 Allowing export on template members of nontemplate classes No
336 CD1 Explicit specialization examples are still incorrect Yes
337 CD1 Attempt to create array of abtract type should cause deduction to fail Yes
338 CD6 Enumerator name with linkage used as class name in other translation unit Unknown
339 CD1 Overload resolution in operand of sizeof in constant expression Clang 2.8
340 NAD Unclear wording in disambiguation section Yes
341 C++11 extern "C" namespace member function versus global variable Superseded by 1708
342 CD3 Terminology: "indirection" versus "dereference" N/A
343 C++17 Make template optional in contexts that require a type No
344 CD3 Naming destructors Duplicate of 1435
345 CD1 Misleading comment on example in templates chapter Yes
346 NAD Typo in 15.4 N/A
347 NAD Use of derived class name in defining base class nested class Yes
348 CD1 delete and user-written deallocation functions N/A
349 CD1 Template argument deduction for conversion functions and qualification conversions No
350 open signed char underlying representation for objects Not resolved
351 CD1 Sequence point error: unspecified or undefined? N/A
352 CD1 Nondeduced contexts Clang 2.8
353 CD1 Is deallocation routine called if destructor throws exception in delete? Unknown
354 CD1 Null as nontype template argument Yes (C++11 onwards)
355 C++11 Global-scope :: in nested-name-specifier Yes
356 NAD Wording of behavior of generated copy constructor for scalar members N/A
357 CD1 Definition of signature should include name Yes
358 NAD Namespaces and extern "C" Yes
359 NAD Type definition in anonymous union Yes
360 CD6 Using-declaration that reduces access Yes
361 open Forward reference to default argument Not resolved
362 CD1 Order of initialization in instantiation units N/A
363 NAD Initialization of class from self N/A
364 CD1 Calling overloaded function with static in set, with no object Yes
365 open Storage duration and temporaries Not resolved
366 CD1 String literal allowed in integral constant expression? Yes
367 CD1 throw operator allowed in constant expression? Yes
368 CD1 Uses of non-type parameters that should cause deduction to fail Clang 3.6
369 drafting Are new/delete identifiers or preprocessing-op-or-punc? Not resolved
370 CD1 Can #include <...> form be used other than for standard C++ headers? N/A
371 open Interleaving of constructor calls Not resolved
372 CD1 Is access granted by base class specifiers available in following base class specifiers? No
373 C++11 Lookup on namespace qualified name in using-directive Clang 5
374 CD2 Can explicit specialization outside namespace use qualified name? Clang 7
375 dup Confusing example on lookup with typename Duplicate of 345
376 NAD Class "definition" versus class "declaration" N/A
377 CD1 Enum whose enumerators will not fit in any integral type Yes
378 CD1 Wording that says temporaries are declared Duplicate of 276
379 CD1 Change "class declaration" to "class definition" N/A
380 open Definition of "ambiguous base class" missing Not resolved
381 CD1 Incorrect example of base class member lookup Yes
382 CD1 Allow typename outside of templates Yes (C++11 onwards)
383 CD1 Is a class with a declared but not defined destructor a POD? Yes
384 NAD Argument-dependent lookup and operator functions Yes
385 CD1 How does protected member check of 11.5 interact with using-declarations? Clang 2.8
386 CD6 Friend declaration of name brought in by using-declaration Unknown
387 CD1 Errors in example in 14.6.5 Clang 2.8
388 CD3 Catching base*& from a throw of derived* Unknown
389 CD1 Unnamed types in entities with linkage No
390 CD1 Pure virtual must be defined when implicitly called Clang 3.3
391 CD1 Require direct binding of short-lived references to rvalues Clang 2.8 (C++11 onwards)
392 CD1 Use of full expression lvalue before temporary destruction Clang 2.8
393 CD4 Pointer to array of unknown bound in template argument list in parameter Clang 2.7
394 CD1 identifier-list is never defined N/A
395 NAD Conversion operator template syntax Clang 3.0
396 CD1 Misleading note regarding use of auto for disambiguation Yes
397 CD1 Same address for string literals from default arguments in inline functions? Superseded by 1823
398 CD1 Ambiguous wording on naming a type in deduction Yes
399 CD6 Destructor lookup redux Clang 11
400 CD1 Using-declarations and the "struct hack" Yes
401 CD1 When is access for template parameter default arguments checked? Clang 2.8
402 open More on partial ordering of function templates Not resolved
403 CD1 Reference to a type as a template-id Yes
404 CD1 Unclear reference to construction with non-trivial constructor N/A
405 CD6 Unqualified function name lookup Yes
406 CD1 Static data member in class with name for linkage purposes Clang 2.9
407 C++11 Named class with associated typedef: two names or one? Clang 3.8
408 CD2 sizeof applied to unknown-bound array static data member of template Clang 3.4
409 CD1 Obsolete paragraph missed by changes for issue 224 Yes
410 CD1 Paragraph missed in changes for issue 166 No
411 CD6 Use of universal-character-name in character versus string literals Unknown
412 NAD Can a replacement allocation function be inline? Clang 3.4
413 CD1 Definition of "empty class" Yes
414 CD1 Multiple types found on destructor lookup Duplicate of 305
415 CD1 Template deduction does not cause instantiation Yes
416 CD1 Class must be complete to allow operator lookup? Yes
417 CD1 Using derived-class qualified name in out-of-class nested class definition No
418 CD6 Imperfect wording on error on multiple default arguments on a called function No
419 open Can cast to virtual base class be done on partially-constructed object? Not resolved
420 CD1 postfixexpression->scalar_type_dtor() inconsistent Clang 9
421 CD1 Is rvalue.field an rvalue? Yes
422 NAD Is a typedef redeclaration allowed with a template type that might be the same? Yes
423 NAD Can a conversion be done on the left operand of a compound assignment? Yes
424 CD1 Wording problem with issue 56 resolution on redeclaring typedefs in class scope Yes
425 CD1 Set of candidates for overloaded built-in operator with float operand Yes
426 C++17 Identically-named variables, one internally and one externally linked, allowed? Unknown
427 CD1 static_cast ambiguity: conversion versus cast to derived Yes
428 CD1 Mention of expression with reference type Yes
429 CD1 Matching deallocation function chosen based on syntax or signature? Clang 2.8 (C++11 onwards)
430 CD1 Ordering of expression evaluation in initializer list Yes (C++11 onwards)
431 C++11 Defect in wording in 14.2 Yes
432 CD1 Is injected class name visible in base class specifier list? Clang 3.0
433 CD1 Do elaborated type specifiers in templates inject into enclosing namespace scope? Yes
434 NAD Unclear suppression of standard conversions while binding reference to lvalue Superseded by 2352
435 NAD Change "declararation or definition" to "declaration" N/A
436 CD1 Problem in example in 9.6 paragraph 4 Yes
437 CD1 Is type of class allowed in member function exception specification? Superseded by 1308
438 CD2 Possible flaw in wording for multiple accesses to object between sequence points Clang 2.7
439 CD1 Guarantees on casting pointer back to cv-qualified version of original type Clang 2.7
440 NAD Allow implicit pointer-to-member conversion on nontype template argument Unknown
441 CD1 Ordering of static reference initialization Clang 2.7
442 CD1 Incorrect use of null pointer constant in description of delete operator Superseded by 348
443 CD1 Wording nit in description of lifetime of temporaries N/A
444 NAD Overriding and the generated copy assignment operator Yes
445 NAD Wording issue on friend declarations Clang 3.2
446 CD1 Does an lvalue-to-rvalue conversion on the "?" operator produce a temporary? Clang 2.8
447 CD1 Is offsetof type-dependent? Yes
448 C++11 Set of template functions in call with dependent explicit argument Clang 2.8
449 NAD Consistency in use of hyphen with names of "non" entities N/A
450 CD1 Binding a reference to const to a cv-qualified array rvalue Yes
451 CD1 Expressions with invalid results and ill-formedness Yes
452 CD1 Wording nit on description of this Yes
453 DR References may only bind to “valid” objects Unknown
454 CD1 When is a definition of a static data member required? Unknown
455 NAD Partial ordering and non-deduced arguments Unknown
456 NAD Is initialized const int or const bool variable a null pointer constant? Yes
457 CD1 Wording nit on use of const variables in constant expressions Yes
458 C++11 Hiding of member template parameters by other members Clang 11
459 NAD Hiding of template parameters by base class members Unknown
460 CD1 Can a using-declaration name a namespace? Yes
461 NAD Make asm conditionally-supported N/A
462 CD3 Lifetime of temporaries bound to comma expressions Clang 2.7
463 CD1 reinterpret_cast<T*>(0) N/A
464 CD1 Wording nit on lifetime of temporaries to which references are bound N/A
465 NAD May constructors of global objects call exit()? N/A
466 CD1 cv-qualifiers on pseudo-destructor type Clang 2.8
467 NAD Jump past initialization of local static variable Yes
468 CD1 Allow ::template outside of templates Yes (C++11 onwards)
469 NAD Const template specializations and reference arguments No
470 CD1 Instantiation of members of an explicitly-instantiated class template Yes
471 NAD Conflicting inherited access specifications Clang 2.8
472 drafting Casting across protected inheritance Not Resolved*
473 NAD Block-scope declarations of allocator functions Unknown
474 CD1 Block-scope extern declarations in namespace members Clang 3.4
475 C++11 When is std::uncaught_exception() true? (take 2) Unknown
476 CD5 Determining the buffer size for placement new Unknown
477 CD1 Can virtual appear in a friend declaration? Clang 3.5
478 NAD May a function parameter be an array of an abstract class type? Yes
479 CD1 Copy elision in exception handling Clang 2.8
480 CD1 Is a base of a virtual base also virtual? Yes
481 CD2 Scope of template parameters Clang 2.8
482 CD3 Qualified declarators in redeclarations Clang 3.5
483 CD3 Normative requirements on integral ranges Yes
484 CD1 Can a base-specifier name a cv-qualified class type? Yes
485 CD1 What is a “name”? Yes
486 CD1 Invalid return types and template argument deduction Yes
487 NAD Operator overloading in constant expressions Yes
488 CD1 Local types, overload resolution, and template argument deduction Yes (C++11 onwards)
489 NAD Must member function templates be instantiated during overload resolution? N/A
490 CD2 Name lookup in friend declarations Clang 2.8
491 CD1 Initializers for empty-class aggregrate members Duplicate of 413
492 CD1 typeid constness inconsistent with example Clang 2.7
493 CD2 Type deduction from a bool context Duplicate of 976
494 CD1 Problems with the resolution of issue 45 Duplicate of 372
495 CD2 Overload resolution with template and non-template conversion functions Clang 3.5
496 CD3 Is a volatile-qualified type really a POD? Superseded by 2094
497 CD1 Missing required initialization in example Superseded by 253
498 open Storage class specifiers in definitions of class members Not resolved
499 CD2 Throwing an array of unknown size Yes
500 CD1 Access in base-specifiers of friend and nested classes Duplicate of 372
501 NAD Visibility of friend declarations within the befriending class Yes
502 C++11 Dependency of nested enumerations and enumerators Yes
503 open Cv-qualified function types in template argument deduction Not resolved
504 NAD Should use of a variable in its own initializer require a diagnostic? Unknown
505 CD1 Conditionally-supported behavior for unknown character escapes Yes
506 CD1 Conditionally-supported behavior for non-POD objects passed to ellipsis Yes
507 dup Ambiguity assigning class object to built-in type Duplicate of 260
508 C++11 Non-constructed value-initialized objects N/A
509 CD1 Dead code in the specification of default initialization N/A
510 CD1 Default initialization of POD classes? N/A
511 open POD-structs with template assignment operators Not resolved
512 NAD Union members with user-declared non-default constructors Yes
513 CD1 Non-class “most-derived” objects N/A
514 CD1 Is the initializer for a namespace member in the scope of the namespace? Yes
515 CD1 Non-dependent references to base class members Superseded by 1017
516 CD1 Use of signed in bit-field declarations N/A
517 CD1 Partial specialization following explicit instantiation No
518 CD1 Trailing comma following enumerator-list Yes (C++11 onwards)
519 CD1 Null pointer preservation in void* conversions Clang 2.7
520 CD1 Old-style casts between incomplete class types N/A
521 CD1 Requirements for exceptions thrown by allocation functions No
522 CD1 Array-to-pointer decay in template argument deduction Yes
523 open Can a one-past-the-end pointer be invalidated by deleting an adjacent object? Not resolved
524 CD1 Can function-notation calls to operator functions be dependent? Yes
525 CD1 Missing * in example Yes
526 CD1 Confusing aspects in the specification of non-deduced contexts Yes
527 CD2 Problems with linkage of types N/A
528 NAD Why are incomplete class types not allowed with typeid? Clang 2.7
529 drafting Use of template<> with “explicitly-specialized” class templates Not resolved
530 CD1 Nontype template arguments in constant expressions Yes
531 C++11 Defining members of explicit specializations Partial
532 C++11 Member/nonmember operator template partial ordering Clang 3.5
533 NAD Special treatment for C-style header names N/A
534 CD1 template-names and operator-function-ids Clang 2.9
535 CD3 Copy construction without a copy constructor Yes
536 CD6 Problems in the description of id-expressions N/A
537 CD1 Definition of “signature” N/A
538 CD1 Definition and usage of structure, POD-struct, POD-union, and POD class N/A
539 CD3 Constraints on type-specifier-seq Yes
540 CD1 Propagation of cv-qualifiers in reference-to-reference collapse Yes
541 CD2 Dependent function types Yes
542 CD2 Value initialization of arrays of POD-structs Yes
543 CD1 Value initialization and default constructors Clang 3.0
544 NAD Base class lookup in explicit specialization Yes
545 open User-defined conversions and built-in operator overload resolution Not resolved
546 C++11 Explicit instantiation of class template members Yes
547 C++11 Partial specialization on member function types Clang 3.2
548 dup qualified-ids in declarations Duplicate of 482
549 drafting Non-deducible parameters in partial specializations Not resolved
550 dup Pointer to array of unknown bound in parameter declarations Duplicate of 393
551 CD1 When is inline permitted in an explicit instantiation? Yes (C++11 onwards)
552 NAD Use of typename in the type in a non-type parameter-declaration Yes
553 NAD Problems with friend allocation and deallocation functions Clang 2.7
554 CD6 Definition of “declarative region” and “scope” N/A
555 CD5 Pseudo-destructor name lookup Clang 2.8
556 CD2 Conflicting requirements for acceptable aliasing N/A
557 CD1 Does argument-dependent lookup cause template instantiation? Clang 3.1
558 CD1 Excluded characters in universal character names Clang 2.9
559 CD1 Editing error in issue 382 resolution Yes
560 NAD Use of the typename keyword in return types Clang 16
561 CD2 Internal linkage functions in dependent name lookup Yes
562 CD6 qualified-ids in non-expression contexts N/A
563 CD6 Linkage specification for objects Unknown
564 CD2 Agreement of language linkage or linkage-specifications? Yes
565 CD3 Conflict rules for using-declarations naming function templates Yes
566 NAD Conversion of negative floating point values to integer type Yes
567 NAD Can size_t and ptrdiff_t be larger than long? N/A
568 CD1 Definition of POD is too strict Clang 3.0 (C++11 onwards)
569 CD2 Spurious semicolons at namespace scope should be allowed Yes (C++11 onwards)
570 CD2 Are references subject to the ODR? Duplicate of 633
571 CD2 References declared const Clang 2.7
572 C++11 Standard conversions for non-built-in types Yes
573 C++11 Conversions between function pointers and void* No
574 NAD Definition of “copy assignment operator” Clang 3.0
575 C++11 Criteria for deduction failure Yes
576 CD2 Typedefs in function definitions Clang 3.5
577 CD3 void in an empty parameter list Clang 3.5
578 CD6 Phase 1 replacement of characters with universal-character-names Unknown
579 open What is a “nested” > or >>? Not resolved
580 C++11 Access in template-parameters of member and friend definitions Partial
581 CD5 Can a templated constructor be explicitly instantiated or specialized? Unknown
582 CD1 Template conversion functions N/A
583 CD3 Relational pointer comparisons against the null pointer constant Clang 4
584 NAD Unions and aliasing N/A
585 NAD Friend template template parameters Clang 3.0
586 NAD Default template-arguments and template argument deduction N/A
587 CD2 Lvalue operands of a conditional expression differing only in cv-qualification Clang 3.2
588 CD2 Searching dependent bases of classes local to function templates Yes
589 CD2 Direct binding of class and array rvalues in reference initialization Yes
590 C++11 Nested classes and the “current instantiation” Yes
591 CD4 When a dependent base class is the current instantiation No
592 CD1 Exceptions during construction of local static objects N/A
593 NAD Falling off the end of a destructor's function-try-block handler Clang 2.8
594 CD1 Coordinating issues 119 and 404 with delegating constructors N/A
595 dup Exception specifications in templates instantiated from class bodies Duplicate of 1330
596 NAD Replacing an exception object Unknown
597 CD3 Conversions applied to out-of-lifetime non-POD lvalues N/A
598 CD2 Associated namespaces of overloaded functions and function templates Yes
599 CD2 Deleting a null function pointer Partial
600 CD6 Does access control apply to members or to names? Clang 2.8
601 CD2 Type of literals in preprocessing expressions Yes
602 C++11 When is the injected-class-name of a class template a template? Yes
603 CD1 Type equivalence and unsigned overflow Yes
604 CD2 Argument list for overload resolution in copy-initialization N/A
605 C++11 Linkage of explicit specializations Clang 2.7
606 CD1 Template argument deduction for rvalue references Clang 3.0
607 CD6 Lookup of mem-initializer-ids Yes
608 CD2 Determining the final overrider of a virtual function Yes
609 CD4 What is a “top-level” cv-qualifier? Unknown
610 NAD Computing the negative of 0U Yes
611 CD2 Zero-initializing references Yes
612 CD2 Requirements on a conforming implementation N/A
613 CD1 Unevaluated uses of non-static class members Yes (C++11 onwards)
614 CD1 Results of integer / and % Yes
615 C++11 Incorrect description of variables that can be initialized Yes
616 CD3 Definition of “indeterminate value” Clang 4
617 NAD Lvalue-to-rvalue conversions of uninitialized char objects Unknown
618 CD2 Casts in preprocessor conditional expressions Yes
619 C++11 Completeness of array types Yes
620 CD1 Declaration order in layout-compatible POD structs Duplicate of 568
621 C++11 Template argument deduction from function return types Yes
622 NAD Relational comparisons of arbitrary pointers Unknown
623 CD3 Use of pointers to deallocated storage N/A
624 CD1 Overflow in calculating size of allocation Unknown
625 CD2 Use of auto as a template-argument Yes
626 CD2 Preprocessor string literals Yes
627 NAD Values behaving as types Yes
628 CD2 The values of an enumeration with no enumerator N/A
629 CD1 auto parsing ambiguity Clang 2.9
630 CD2 Equality of narrow and wide character values in the basic character set Yes
631 CD3 Jumping into a “then” clause N/A
632 CD1 Brace-enclosed initializer for scalar member of aggregate Yes
633 CD2 Specifications for variables that should also apply to references N/A
634 CD1 Conditionally-supported behavior for non-POD objects passed to ellipsis redux Yes
635 NAD Names of constructors and destructors of templates Yes
636 CD4 Dynamic type of objects and aliasing Unknown
637 CD1 Sequencing rules and example disagree Yes
638 CD2 Explicit specialization and friendship No
639 CD1 What makes side effects “different” from one another? Clang 3.3
640 NAD Accessing destroyed local objects of static storage duration Unknown
641 CD2 Overload resolution and conversion-to-same-type operators Yes
642 CD2 Definition and use of “block scope” and “local scope” Yes
643 NAD Use of decltype in a class member-specification Clang 3.2
644 CD1 Should a trivial class type be a literal type? Partial
645 CD2 Are bit-field and non-bit-field members layout compatible? N/A
646 NAD Can a class with a constexpr copy constructor be a literal type? Superseded by 981
647 CD1 Non-constexpr instances of constexpr constructor templates Clang 3.1
648 CD1 Constant expressions in constexpr initializers Yes
649 CD1 Optionally ill-formed extended alignment requests Clang 3.5
650 CD2 Order of destruction for temporaries bound to the returned value of a function Clang 2.8
651 CD1 Problems in decltype specification and examples Yes
652 CD2 Compile-time evaluation of floating-point expressions Yes
653 CD2 Copy assignment of unions Clang 2.7
654 CD1 Conversions to and from nullptr_t Superseded by 1423
655 C++11 Initialization not specified for forwarding constructors Yes
656 CD2 Direct binding to the result of a conversion operator Yes
657 CD2 Abstract class parameter in synthesized declaration Partial
658 CD2 Defining reinterpret_cast for pointer types Clang 2.7
659 CD1 Alignment of function types Clang 3.0
660 CD1 Unnamed scoped enumerations Clang 3.0
661 CD1 Semantics of arithmetic comparisons Clang 2.7
662 NAD Forming a pointer to a reference type Yes
663 CD1 Valid Cyrillic identifier characters Superseded by P1949
664 CD2 Direct binding of references to non-class rvalue references Yes
665 CD2 Problems in the specification of dynamic_cast Clang 2.8
666 CD1 Dependent qualified-ids without the typename keyword Clang 2.8
667 CD2 Trivial special member functions that cannot be implicitly defined Clang 8
668 CD2 Throwing an exception from the destructor of a local static object Unknown
669 NAD Confusing specification of the meaning of decltype Yes
670 CD4 Copy initialization via derived-to-base conversion in the second step Unknown
671 CD1 Explicit conversion from a scoped enumeration type to integral type Clang 2.9
672 CD2 Sequencing of initialization in new-expressions Clang 2.7
673 NAD Injection of names from elaborated-type-specifiers in friend declarations Yes
674 C++11 “matching specialization” for a friend declaration Clang 8
675 CD3 Signedness of bit-field with typedef or template parameter type Duplicate of 739
676 C++11 static_assert-declarations and general requirements for declarations N/A
677 CD1 Deleted operator delete and virtual destructors No
678 C++11 Language linkage of member function parameter types and the ODR Unknown
679 CD1 Equivalence of template-ids and operator function templates Yes
680 CD2 What is a move constructor? N/A
681 CD1 Restrictions on declarators with late-specified return types Partial
682 CD5 Missing description of lookup of template aliases Unknown
683 CD1 Requirements for trivial subobject special functions Yes
684 CD1 Constant expressions involving the address of an automatic variable Superseded by 1454
685 CD2 Integral promotion of enumeration ignores fixed underlying type Yes
686 CD1 Type declarations/definitions in type-specifier-seqs and type-ids Clang 3.0
687 NAD template keyword with unqualified-ids Unknown
688 CD1 Constexpr constructors and static initialization Unknown
689 CD5 Maximum values of signed and unsigned integers Unknown
690 CD2 The dynamic type of an rvalue reference Unknown
691 C++11 Template parameter packs in class template partial specializations Unknown
692 C++11 Partial ordering of variadic class template partial specializations Clang 16
693 CD2 New string types and deprecated conversion Unknown
694 C++11 Zero- and value-initialization of union objects Unknown
695 CD2 Compile-time calculation errors in constexpr functions Unknown
696 C++11 Use of block-scope constants in local classes Clang 3.1
697 open Deduction rules apply to more than functions Not resolved
698 open The definition of “sequenced before” is too narrow Not resolved
699 CD2 Must constexpr member functions be defined in the class member-specification? Unknown
700 C++11 Constexpr member functions of class templates Unknown
701 CD2 When is the array-to-pointer conversion applied? Unknown
702 CD2 Preferring conversion to std::initializer_list Unknown
703 CD2 Narrowing for literals that cannot be exactly represented Unknown
704 CD2 To which postfix-expressions does overload resolution apply? Unknown
705 CD2 Suppressing argument-dependent lookup via parentheses Yes
706 NAD Use of auto with rvalue references Unknown
707 CD2 Undefined behavior in integral-to-floating conversions Unknown
708 open Partial specialization of member templates of class templates Not resolved
709 C++11 Enumeration names as nested-name-specifiers in deduction failure Unknown
710 CD2 Data races during construction Unknown
711 CD2 auto with braced-init-list Unknown
712 CD3 Are integer constant operands of a conditional-expression “used?” Partial
713 CD2 Unclear note about cv-qualified function types Unknown
714 CD2 Static const data members and braced-init-lists Unknown
715 CD2 Class member access constant expressions Unknown
716 CD2 Specifications that should apply only to non-static union data members Unknown
717 CD2 Unintentional restrictions on the use of thread_local Unknown
718 NAD Non-class, non-function friend declarations Unknown
719 CD2 Specifications for operator-function-id that should also apply to literal-operator-id Unknown
720 CD2 Need examples of lambda-expressions Unknown
721 CD2 Where must a variable be initialized to be used in a constant expression? Unknown
722 CD2 Can nullptr be passed to an ellipsis? Unknown
726 CD2 Atomic and non-atomic objects in the memory model Unknown
727 C++17 In-class explicit specializations Partial
728 NAD Restrictions on local classes Unknown
729 CD3 Qualification conversions and handlers of reference-to-pointer type Unknown
730 CD2 Explicit specializations of members of non-template classes Unknown
731 CD2 Omitted reference qualification of member function type Unknown
732 CD2 Late-specified return types in function definitions Unknown
733 NAD Reference qualification of copy assignment operators Unknown
734 CD2 Are unique addresses required for namespace-scope variables? Unknown
735 CD2 Missing case in specification of safely-derived pointers Unknown
736 NAD Is the & ref-qualifier needed? Unknown
737 CD2 Uninitialized trailing characters in string initialization Unknown
738 C++11 constexpr not permitted by the syntax of constructor declarations Unknown
739 CD3 Signedness of plain bit-fields Unknown
740 CD2 Incorrect note on data races Unknown
741 C++11 “plain” long long bit-fields Unknown
742 open Postfix increment/decrement with long bit-field operands Not resolved
743 CD2 Use of decltype in a nested-name-specifier Unknown
744 CD2 Matching template arguments with template template parameters with parameter packs Unknown
745 C++23 Effect of ill-formedness resulting from #error Unknown
746 CD2 Use of auto in new-expressions Unknown
747 dup Access of protected base classes Unknown
749 CD2 References to function types with a cv-qualifier or ref-qualifier Unknown
750 CD2 Implementation constraints on reference-only closure objects Unknown
751 CD2 Deriving from closure classes Unknown
752 CD2 Name lookup in nested lambda-expressions Unknown
753 CD2 Array names in lambda capture sets Unknown
754 CD2 Lambda expressions in default arguments of block-scope function declarations Unknown
755 CD3 Generalized lambda-captures Unknown
756 CD2 Dropping cv-qualification on members of closure objects Unknown
757 CD2 Types without linkage in declarations Unknown
758 C++11 Missing cases of declarations that are not definitions Unknown
759 CD2 Destruction of closure objects Unknown
760 CD2 this inside a nested class of a non-static member function Unknown
761 CD2 Inferred return type of closure object call operator Unknown
762 CD2 Name lookup in the compound-statement of a lambda expression Unknown
763 CD2 Is a closure object's operator() inline? Unknown
764 CD2 Capturing unused variables in a lambda expression Unknown
765 CD2 Local types in inline functions with external linkage Unknown
766 CD2 Where may lambda expressions appear? Unknown
767 CD2 void and other unnamed lambda-parameters Unknown
768 CD2 Ellipsis in a lambda parameter list Unknown
769 CD2 Initialization of closure objects Unknown
770 CD2 Ambiguity in late-specified return type Unknown
771 CD2 Move-construction of reference members of closure objects Unknown
772 CD2 capture-default in lambdas in local default arguments Unknown
773 C++11 Parentheses in address non-type template arguments Unknown
774 CD2 Can a closure class be a POD? Unknown
775 CD2 Capturing references to functions Unknown
776 CD2 Delegating constructors, destructors, and std::exit Unknown
777 CD2 Default arguments and parameter packs Clang 3.7
778 C++11 Template parameter packs in non-type template parameters Unknown
779 CD2 Rvalue reference members of closure objects? Unknown
782 CD2 Lambda expressions and argument-dependent lookup Unknown
783 open Definition of “argument” Not resolved
784 C++11 List of incompatibilities with the previous Standard Unknown
785 CD2 “Execution sequence” is inappropriate phraseology Unknown
786 CD2 Definition of “thread” Unknown
787 CD2 Unnecessary lexical undefined behavior Unknown
788 CD2 Relationship between locale and values of the execution character set Unknown
789 CD2 Deprecating trigraphs Unknown
790 CD2 Concatenation of raw and non-raw string literals Unknown
792 CD2 Effects of std::quick_exit Unknown
793 CD2 Use of class members during destruction Unknown
794 NAD Base-derived conversion in member type of pointer-to-member conversion Unknown
795 NAD Dependency of lambdas on <functional> Unknown
796 CD2 Lifetime of a closure object with members captured by reference Unknown
797 CD2 Converting a no-capture lambda to a function type Unknown
798 C++11 Overloaded subscript operator described in clause 5 Unknown
799 CD2 Can reinterpret_cast be used to cast an operand to its own type? Unknown
800 NAD Safely-derived pointers and object pointers converted from function pointers Unknown
801 CD2 Casting away constness in a cast to rvalue reference type Unknown
803 CD2 sizeof an enumeration type with a fixed underlying type Unknown
804 CD2 Deducing the type in new auto(x) Unknown
805 CD2 Which exception to throw for overflow in array size calculation Unknown
806 CD2 Enumeration types in integral constant expressions Unknown
807 NAD typeid expressions in constant expressions Unknown
808 CD2 Non-type decl-specifiers versus max-munch Unknown
809 CD2 Deprecation of the register keyword Unknown
810 CD2 Block-scope thread_local variables should be implicitly static Unknown
811 CD2 Unclear implications of const-qualification Unknown
812 CD2 Duplicate names in inline namespaces Unknown
813 open typename in a using-declaration with a non-dependent name Not resolved
814 CD2 Attribute to indicate that a function throws nothing Unknown
815 CD2 Parameter pack expansion inside attributes Unknown
816 CD2 Diagnosing violations of [[final]] Unknown
817 CD2 Meaning of [[final]] applied to a class definition Unknown
818 CD2 Function parameter packs in non-final positions Unknown
819 NAD Access control and deleted implicitly-declared special member functions Unknown
820 CD2 Deprecation of export Unknown
822 NAD Additional contexts for template aliases Unknown
823 CD2 Literal types with constexpr conversions as non-type template arguments Unknown
828 CD2 Destruction of exception objects Unknown
829 NAD At what point is std::unexpected called? Unknown
830 CD2 Deprecating exception specifications Unknown
831 CD2 Limit on recursively nested template instantiations Unknown
832 CD2 Value of preprocessing numbers Unknown
833 CD2 Explicit conversion of a scoped enumeration value to a floating type Unknown
834 CD2 What is an “ordinary string literal”? Unknown
835 CD2 Scoped enumerations and the “usual arithmetic conversions” Unknown
836 NAD [[noreturn]] applied to function types Unknown
837 C++11 Constexpr functions and return braced-init-list Unknown
838 C++11 Use of this in a brace-or-equal-initializer Unknown
839 dup sizeof with opaque enumerations Unknown
840 CD2 Rvalue references as nontype template parameters Unknown
842 CD2 Casting to rvalue reference type Unknown
845 CD2 What is the “first declaration” of an explicit specialization? Unknown
846 CD2 Rvalue references to functions Unknown
847 CD2 Error in rvalue reference deduction example Unknown
850 CD2 Restrictions on use of non-static data members Unknown
852 CD6 using-declarations and dependent base classes Unknown
853 CD2 Support for relaxed pointer safety Unknown
854 CD2 Left shift and unsigned extended types Unknown
855 CD2 Incorrect comments in braced-init-list assignment example Unknown
858 CD2 Example binding an rvalue reference to an lvalue Unknown
860 C++11 Explicit qualification of constexpr member functions Unknown
861 CD2 Unintended ambiguity in inline namespace lookup Unknown
862 CD2 Undefined behavior with enumerator value overflow Unknown
863 CD2 Rvalue reference cast to incomplete type Unknown
864 C++11 braced-init-list in the range-based for statement Unknown
865 CD2 Initializing a std::initializer_list Unknown
869 CD2 Uninitialized thread_local objects Unknown
872 CD2 Lexical issues with raw strings Unknown
873 C++11 Deducing rvalue references in declarative contexts Clang 3.0
874 CD2 Class-scope definitions of enumeration types Unknown
876 CD2 Type references in rvalue reference deduction specification Unknown
877 CD2 Viable functions and binding references to rvalues Unknown
879 CD2 Missing built-in comparison operators for pointer types Unknown
880 CD2 Built-in conditional operator for scoped enumerations Unknown
882 CD2 Defining main as deleted Unknown
883 CD2 std::memcpy vs std::memmove Unknown
884 CD2 Defining an explicitly-specialized static data member Unknown
885 NAD Partial ordering of function templates with unordered parameter pairs Unknown
886 CD2 Member initializers and aggregates Unknown
887 CD2 Move construction of thrown object Unknown
888 CD2 Union member initializers Unknown
891 CD2 const_cast to rvalue reference from objectless rvalue Unknown
892 C++11 Missing requirements for constexpr constructors Unknown
893 NAD Brace syntax for enumerator-definitions Unknown
896 CD2 Rvalue references and rvalue-reference conversion functions Unknown
897 open _Pragma and extended string-literals Not resolved
898 C++11 Declarations in constexpr functions Unknown
899 CD2 Explicit conversion functions in direct class initialization Unknown
900 C++23 Lifetime of temporaries in range-based for Unknown
901 drafting Deleted operator delete Not resolved
902 NAD In-class initialization of non-constant static data members Unknown
903 CD3 Value-dependent integral null pointer constants Unknown
904 CD2 Parameter packs in lambda-captures Unknown
905 CD2 Explicit defaulted copy constructors and trivial copyability Unknown
906 CD2 Which special member functions can be defaulted? Unknown
908 CD2 Deleted global allocation and deallocation functions Unknown
909 NAD Old-style casts with conversion functions Unknown
910 CD2 Move constructors and implicitly-declared copy constructors Unknown
912 CD3 Character literals and universal-character-names Unknown
913 CD2 Deduction rules for array- and function-type conversion functions Unknown
914 open Value-initialization of array types Not resolved
915 CD2 Deleted specializations of member function templates Unknown
919 CD2 Contradictions regarding inline namespaces Unknown
920 CD2 Interaction of inline namespaces and using-declarations Unknown
921 CD2 Unclear specification of inline namespaces Unknown
922 CD2 Implicit default constructor definitions and const variant members Unknown
923 CD2 Inline explicit specializations Unknown
924 C++11 alias-declaration as a class member Unknown
925 open Type of character literals in preprocessor expressions Not resolved
926 CD2 Inline unnamed namespaces Unknown
927 CD2 Implicitly-deleted default constructors and member initializers Unknown
928 CD2 Defaulting a function that would be implicitly defined as deleted Unknown
929 CD2 What is a template alias? Unknown
930 CD2 alignof with incomplete array type Clang 2.7
931 CD2 Confusing reference to the length of a user-defined string literal Unknown
932 CD2 UCNs in closing delimiters of raw string literals Unknown
933 CD2 32-bit UCNs with 16-bit wchar_t Unknown
934 CD2 List-initialization of references Unknown
935 CD2 Missing overloads for character types for user-defined literals Unknown
936 CD2 Array initialization with new string literals Unknown
937 NAD Restrictions on values of template arguments in user-defined literals Unknown
938 C++11 Initializer lists and array new Unknown
939 CD2 Explicitly checking virtual function overriding Unknown
940 CD2 Global anonymous unions Unknown
941 C++11 Explicit specialization of deleted function template Unknown
942 CD2 Is this an entity? Unknown
943 CD5 Is T() a temporary? Unknown
944 NAD reinterpret_cast for all types with the same size and alignment Unknown
945 C++11 Use of this in a late-specified return type Unknown
946 CD2 Order of destruction of local static objects and calls to std::atexit Unknown
947 NAD Deducing type template arguments from default function arguments Unknown
948 C++11 constexpr in conditions Clang 3.7
949 open Requirements for freestanding implementations Not resolved
950 CD2 Use of decltype as a class-name Unknown
951 CD2 Problems with attribute-specifiers Unknown
952 CD6 Insufficient description of “naming class” Clang 2.8
953 CD2 Rvalue references and function viability Unknown
954 open Overload resolution of conversion operator templates with built-in types Not resolved
955 CD2 Can a closure type's operator() be virtual? Unknown
956 CD2 Function prototype scope with late-specified return types Unknown
957 CD2 Alternative tokens and attribute-tokens Unknown
958 NAD Lambdas and decltype Unknown
959 CD2 Alignment attribute for class and enumeration types Unknown
960 CD2 Covariant functions and lvalue/rvalue references Unknown
961 CD2 Overload resolution and conversion of std::nullptr_t to bool Unknown
962 CD2 Attributes appertaining to class and enum types Unknown
963 CD2 Comparing nullptr with 0 Unknown
964 C++11 Incorrect description of when the lvalue-to-rvalue conversion applies Unknown
965 CD2 Limiting the applicability of the carries_dependency attribute Unknown
966 CD2 Nested types without linkage Unknown
967 NAD Exception specification of replacement allocation function Unknown
968 CD2 Syntactic ambiguity of the attribute notation Unknown
969 CD2 Explicit instantiation declarations of class template specializations Unknown
970 CD2 Consistent use of “appertain” and “apply” Unknown
971 C++11 Incorrect treatment of exception-declarations Unknown
972 C++11 Allowing multiple attribute-specifiers Unknown
973 CD2 Function types in exception-specifications Unknown
974 CD3 Default arguments for lambdas Yes
975 CD3 Restrictions on return type deduction for lambdas Unknown
976 CD2 Deduction for const T& conversion operators Unknown
977 CD3 When is an enumeration type complete? Yes
978 CD2 Incorrect specification for copy initialization Unknown
979 CD2 Position of attribute-specifier in declarator syntax Unknown
980 CD2 Explicit instantiation of a member of a class template Unknown
981 C++11 Constexpr constructor templates and literal types Unknown
982 NAD Initialization with an empty initializer list Unknown
983 CD2 Ambiguous pointer-to-member constant Unknown
984 CD2 “Deduced type” is unclear in auto type deduction Unknown
985 C++11 Alternative tokens and user-defined literals Unknown
986 CD2 Transitivity of using-directives versus qualified lookup Unknown
987 CD4 Which declarations introduce namespace members? Unknown
988 CD2 Reference-to-reference collapsing with decltype Unknown
989 CD2 Misplaced list-initialization example Unknown
990 CD2 Value initialization with multiple initializer-list constructors Clang 3.5
991 CD2 Reference parameters of constexpr functions and constructors Unknown
992 NAD Inheriting explicitness Unknown
993 C++11 Freedom to perform instantiation at the end of the translation unit Unknown
994 C++11 braced-init-list as a default argument Unknown
995 CD2 Incorrect example for using-declaration and explicit instantiation Unknown
996 C++11 Ambiguous partial specializations of member class templates Unknown
997 C++11 Argument-dependent lookup and dependent function template parameter types Unknown
998 dup Function parameter transformations and template functions Unknown
999 CD2 “Implicit” or “implied” object argument/parameter? Unknown
1000 CD2 Mistaking member typedefs for constructors Unknown
1001 review Parameter type adjustment in dependent parameter types Not resolved
1002 NAD Pack expansion for function arguments Unknown
1003 CD3 Acceptable definitions of main Unknown
1004 C++11 Injected-class-names as arguments for template template parameters Clang 5
1005 NAD Qualified name resolution in member functions of class templates Unknown
1006 C++11 std::nullptr_t as a non-type template parameter Unknown
1007 NAD Protected access and pointers to members Unknown
1008 NAD Querying the alignment of an object Unknown
1009 C++11 Missing cases in the declarator-id of a function template declaration Unknown
1010 CD2 Address of object with dynamic storage duration in constant expression Unknown
1011 C++11 Standard conversions that cannot be inverted Unknown
1012 C++11 Undeprecating static Unknown
1013 CD3 Uninitialized std::nullptr_t objects Unknown
1014 NAD Overload resolution between const T& and T&& Unknown
1015 C++11 Template arguments and argument-dependent lookup Unknown
1016 C++11 Overloadable declarations, function templates, and references Unknown
1017 C++11 Member access transformation in unevaluated operands Unknown
1018 C++11 Ambiguity between simple-declaration and attribute-declaration Unknown
1019 dup Dependent simple-template-ids in base-specifiers and mem-initializers Unknown
1020 C++11 Implicitly-defined copy constructors and explicit base class constructors Unknown
1021 CD4 Definitions of namespace members Unknown
1022 C++11 Can an enumeration variable have values outside the values of the enumeration? Unknown
1023 dup thread_local objects as non-type template arguments Unknown
1024 CD3 Limits on multicharacter literals Unknown
1025 C++11 Use of a reference as a non-type template argument Unknown
1026 NAD Cv-qualified non-class rvalues Unknown
1027 review Type consistency and reallocation of scalar types Not resolved
1028 CD6 Dependent names in non-defining declarations Unknown
1029 C++11 Type of a destructor call Unknown
1030 C++11 Evaluation order in initializer-lists used in aggregate initialization Unknown
1031 C++11 Optional elements in attributes Unknown
1032 C++11 Empty pack expansions Unknown
1033 C++11 Restrictions on alignment attributes Unknown
1034 C++11 Attributes for return statements in lambdas Unknown
1035 C++11 Omitted and required decl-specifiers Unknown
1036 C++11 Alignment attribute in an exception-declaration Unknown
1037 C++11 Requirements for operands of delete-expressions and deallocation functions Unknown
1038 DRWP Overload resolution of &x.static_func Unknown
1039 dup Coordinating C and C++ alignment specifications Unknown
1040 NAD Memory model issues Unknown
1041 dup alias-declarations as class members Unknown
1042 C++11 Attributes in alias-declarations Clang 3.5
1043 C++11 Qualified name lookup in the current instantiation Unknown
1044 C++11 Point of declaration for an alias-declaration Unknown
1045 NAD Requiring explicit instantiation declarations Unknown
1046 open What is a “use” of a class specialization? Not resolved
1047 C++11 When is typeid value-dependent? Unknown
1048 CD3 auto deduction and lambda return type deduction. Clang 3.6
1049 open Copy elision through reference parameters of inline functions Not resolved
1050 NAD Effects of thread support on object lifetime Unknown
1051 C++11 Reference members and generated copy constructors Unknown
1052 dup const non-static data member and PODness Unknown
1053 NAD Terminate vs undefined behavior for noexcept violation Unknown
1054 C++11 Lvalue-to-rvalue conversions in expression statements No
1055 C++11 Permissible uses of void Unknown
1056 C++11 Template aliases, member definitions, and the current instantiation Unknown
1057 C++11 decltype and the current instantiation Unknown
1058 NAD Reference binding of incompatible array types Unknown
1059 CD3 Cv-qualified array types (with rvalues) Unknown
1060 C++11 Scoped enumerators in integral constant expressions Unknown
1061 C++11 Negative array bounds in a new-expression Unknown
1062 C++11 Syntax of attribute-specifiers in lambdas Unknown
1063 C++11 [[hiding]] with non-attribute declarations Unknown
1064 C++11 Defaulted move constructor for a union Unknown
1065 C++11 [[hiding]] with [[override]] Unknown
1066 C++11 When is a copy/move assignment operator implicitly defined? Unknown
1067 NAD [[hiding]], using-declarations, and multiple inheritance Unknown
1068 C++11 Template aliases with default arguments and template parameter packs Unknown
1069 C++11 Incorrect function type with trailing-return-type Unknown
1070 C++11 Missing initializer clauses in aggregate initialization Clang 3.5
1071 C++11 Literal class types and trivial default constructors Unknown
1072 C++11 Scoped enumerator with the same name as its containing class Unknown
1073 C++11 Merging dynamic-exception-specifications and noexcept-specifications Unknown
1074 C++11 Value-dependent noexcept-expressions Unknown
1075 C++11 Grammar does not allow template alias in type-name Unknown
1076 CD5 Value categories and lvalue temporaries Unknown
1077 NAD Explicit specializations in non-containing namespaces Unknown
1078 NAD Narrowing and the usual arithmetic conversions Unknown
1079 C++11 Overload resolution involving aggregate initialization Unknown
1080 C++11 Confusing relationship between templates and copy constructors Unknown
1081 C++11 Defaulted destructor and unusable operator delete Unknown
1082 C++11 Implicit copy function if subobject has none? Unknown
1083 C++11 Passing an object to ellipsis with non-trivial move constructor Unknown
1084 NAD Conditions for a deleted move function Unknown
1085 NAD Move assignment operators and virtual bases Unknown
1086 C++11 const_cast to rvalue reference to function type Unknown
1087 C++11 Additional applications of issue 899 Unknown
1088 C++11 Dependent non-type template arguments Unknown
1089 open Template parameters in member selections Not resolved
1090 C++11 Alignment of subobjects Unknown
1091 C++11 Inconsistent use of the term “object expression” Unknown
1092 drafting Cycles in overload resolution during instantiation Not resolved
1093 CD3 Value-initializing non-objects Unknown
1094 C++11 Converting floating-point values to scoped enumeration types Unknown
1095 C++11 List-initialization of references Unknown
1096 C++11 Missing requirement for template definitions Unknown
1097 NAD Aggregate initialization of function parameters Unknown
1098 C++11 Pointer conversions in constant expressions Unknown
1099 C++11 Infinite recursion in constexpr functions Unknown
1100 C++11 constexpr conversion functions and non-type template arguments Unknown
1101 C++11 Non-integral initialized static data members Unknown
1102 C++11 Better example of undefined behavior Unknown
1103 C++11 Reversion of phase 1 and 2 transformations in raw string literals Unknown
1104 C++11 Global-scope template arguments vs the <: digraph Unknown
1105 C++11 Issues relating to TR 10176:2003 Unknown
1106 C++11 Need more detail in nullptr keyword description Unknown
1107 C++11 Overload resolution for user-defined integer literals Unknown
1108 NAD User-defined literals have not been implemented Unknown
1109 C++11 When is “use” a reference to the ODR meaning? Unknown
1110 NAD Incomplete return type should be allowed in decltype operand Clang 3.1
1111 C++11 Remove dual-scope lookup of member template names Clang 3.2
1112 C++11 constexpr variables should have internal linkage like const Unknown
1113 C++11 Linkage of namespace member of unnamed namespace Partial
1114 C++11 Incorrect use of placement new in example Unknown
1115 C++11 C-compatible alignment specification Unknown
1116 CD4 Aliasing of union members Unknown
1117 C++11 Incorrect note about xvalue member access expressions Unknown
1118 NAD Implicit lambda capture via explicit copy constructor Unknown
1119 C++11 Missing case in description of member access ambiguity Unknown
1120 C++11 reinterpret_cast and void* Unknown
1121 C++11 Unnecessary ambiguity error in formation of pointer to member Unknown
1122 C++11 Circular definition of std::size_t Unknown
1123 C++11 Destructors should be noexcept by default Unknown
1124 NAD Error in description of value category of pointer-to-member expression Unknown
1125 C++11 Unclear definition of “potential constant expression” Unknown
1126 C++11 constexpr functions in const initializers Unknown
1127 C++11 Overload resolution in constexpr functions Unknown
1128 C++11 attribute-specifiers in decl-specifier-seqs Unknown
1129 C++11 Default nothrow for constexpr functions Unknown
1130 C++11 Function parameter type adjustments and decltype Unknown
1131 C++11 Template aliases in elaborated-type-specifiers Unknown
1132 NAD Keyword vs attribute for noreturn Unknown
1133 C++11 Keywords vs attributes for control of hiding and overriding Unknown
1134 C++11 When is an explicitly-defaulted function defined? Unknown
1135 C++11 Explicitly-defaulted non-public special member functions Unknown
1136 C++11 Explicitly-defaulted explicit constructors Unknown
1137 C++11 Explicitly-defaulted virtual special member functions Unknown
1138 C++11 Rvalue-ness check for rvalue reference binding is wrong Unknown
1139 C++11 Rvalue reference binding to scalar xvalues Unknown
1140 C++11 Incorrect redefinition of POD class Unknown
1141 NAD Non-static data member initializers have not been implemented Unknown
1142 C++11 friend declaration of member function of containing class Unknown
1143 NAD Move semantics for *this have not been implemented Unknown
1144 C++11 Remove access declarations Unknown
1145 C++11 Defaulting and triviality Unknown
1146 C++11 exception-specifications of defaulted functions Unknown
1147 C++11 Destructors should be default nothrow Unknown
1148 C++11 Copy elision and move construction of function parameters Unknown
1149 C++11 Trivial non-public copy operators in subobjects Unknown
1150 NAD Inheriting constructors have not been implemented N/A
1151 C++11 Overload resolution with initializer-list and non-list constructors Unknown
1152 C++11 Rules for determining existence of implicit conversion sequence Unknown
1153 C++11 Type matching in address of overloaded function Unknown
1154 C++11 Address of thread_local variable as non-type template argument Unknown
1155 C++11 Internal-linkage non-type template arguments Unknown
1156 C++11 Partial ordering in a non-call context Unknown
1157 open Partial ordering of function templates is still underspecified Not resolved
1158 C++11 Recursive instantiation via alias template Unknown
1159 C++11 Class and enumeration definitions in template aliases Unknown
1160 C++11 Definitions of template members and the current instantiation Unknown
1161 C++11 Dependent nested-name-specifier in a pointer-to-member declarator Unknown
1162 NAD Dependent elaborated-type-specifiers in non-deduced contexts Unknown
1163 NAD extern template prevents inlining functions not marked inline Unknown
1164 C++11 Partial ordering of f(T&) and f(T&&) Unknown
1165 C++11 Exceptions when destroying array elements Unknown
1166 C++11 exception-declarations that do not declare objects Unknown
1167 C++11 function-try-blocks for destructors Unknown
1168 C++11 Additional reasons to call std::terminate Unknown
1169 C++11 Missing feature macro for strict pointer safety Unknown
1170 C++11 Access checking during template argument deduction Unknown
1171 C++11 Partial stack unwinding with noexcept violation Unknown
1172 drafting “instantiation-dependent” constructs Not resolved
1173 C++11 Unclear specification of effects of signal handling Unknown
1174 C++11 When is a pure virtual function “used?” Unknown
1175 C++11 Disambiguating user-defined literals Unknown
1176 C++11 Definition of release sequence Unknown
1177 C++11 Intra-thread dependency-ordered-before Unknown
1178 C++11 Deduction failure matching placement new Unknown
1179 NAD Cv-qualification of non-type template parameters Unknown
1180 C++11 Over-aligned class types Unknown
1181 C++11 What is a “built-in type?” Unknown
1182 C++11 Incorrect description of pack expansion syntax Unknown
1183 C++11 Expansion of parameter packs in declarators Unknown
1184 C++11 Argument conversions to nondeduced parameter types Unknown
1185 C++11 Misleading description of language linkage and member function types Unknown
1186 C++11 Non-dependent constexpr violations in function templates Unknown
1187 C++11 Problems in initialization example Unknown
1188 C++11 Type punning in constant expressions Unknown
1189 C++11 Address of distinct base class subobjects Unknown
1190 C++11 Operations on non-safely-derived pointers Unknown
1191 C++11 Deleted subobject destructors and implicitly-defined constructors Unknown
1192 C++11 Inadvertent change to ODR and templates Unknown
1193 C++11 Use of address-constant pointers in constant expressions Unknown
1194 C++11 Constexpr references Unknown
1195 C++11 References to non-literal types in constexpr functions Unknown
1196 C++11 Definition required for explicit instantiation after explicit specialization? Unknown
1197 C++11 Constexpr arrays Unknown
1198 C++11 Literal types and copy constructors Unknown
1199 C++11 Deleted constexpr functions Unknown
1200 CD6 Lookup rules for template parameters N/A
1201 C++11 Are deleted and defaulted functions definitions? Unknown
1202 C++11 Calling virtual functions during destruction Unknown
1203 dup Misleading note regarding initialized static data members Unknown
1204 C++11 Specifiers in a for-range-declaration Unknown
1205 dup Lvalue reference binding and function viability Unknown
1206 C++11 Defining opaque enumeration members of class templates Unknown
1207 C++11 Type of class member in trailing-return-type Unknown
1208 C++11 Explicit noexcept in defaulted definition Unknown
1209 open Is a potentially-evaluated expression in a template definition a “use?” Not resolved
1210 C++11 Injection of elaborated-type-specifier in enumeration scope Unknown
1211 drafting Misaligned lvalues Not resolved
1212 C++11 Non-function-call xvalues and decltype Unknown
1213 CD3 Array subscripting and xvalues Clang 7
1214 C++11 Kinds of initializers Unknown
1215 C++11 Definition of POD struct Unknown
1216 C++11 Exceptions “allowed” by a noexcept-specification Unknown
1217 NAD Are deleted functions implicitly noexcept? Unknown
1218 C++11 What is the “currently-handled exception” in a multi-threaded program? Unknown
1219 C++11 Non-static data member initializers in constant expressions Unknown
1220 C++11 Looking up conversion-type-ids Unknown
1221 open Partial ordering and reference collapsing Not resolved
1222 NAD Unnecessary restriction on auto array types Unknown
1223 drafting Syntactic disambiguation and trailing-return-types Not Resolved*
1224 C++11 constexpr defaulted copy constructors Unknown
1225 C++11 constexpr constructors and virtual bases Unknown
1226 CD3 Converting a braced-init-list default argument Unknown
1227 CD3 Mixing immediate and non-immediate contexts in deduction failure Clang 3.0
1228 NAD Copy-list-initialization and explicit constructors Unknown
1229 C++11 Overload resolution with empty braced-init-list argument Unknown
1230 dup Confusing description of ambiguity of destructor name Unknown
1231 C++11 Variadic templates requiring an empty pack expansion Unknown
1232 C++11 Creation of array temporaries using a braced-init-list Unknown
1233 C++11 Pack expansions and dependent calls Unknown
1234 C++11 abstract-declarator does not permit ... after ptr-operator Unknown
1235 C++11 “Unused” ellipsis and default arguments in partial ordering Unknown
1236 C++11 Inconsistently-interrelated examples Unknown
1237 C++11 Deprecated implicit copy assignment in example Unknown
1238 C++11 Overloading ambiguity binding reference to function Unknown
1239 C++11 Hexadecimal floating-point literals vs user-defined literals Unknown
1240 C++11 constexpr defaulted constructors Unknown
1241 C++11 Which members does a destructor destroy? Unknown
1242 C++11 Initializing variant class members Unknown
1243 C++11 Misleading footnote regarding multiple-declarator declarations Unknown
1244 C++11 Equivalence of alias templates and class templates Unknown
1245 C++11 Matching declarations involving decltype Unknown
1246 C++11 Non-deduced non-final parameter packs Unknown
1247 CD4 Restriction on alias name appearing in type-id Unknown
1248 open Updating Annex C to C99 Not resolved
1249 CD6 Cv-qualification of nested lambda capture Unknown
1250 CD3 Cv-qualification of incomplete virtual function return types Clang 3.9
1251 CD3 C compatibility: casting to unqualified void* Unknown
1252 CD6 Overloading member function templates based on dependent return type Unknown
1253 open Generic non-template members Not resolved
1254 NAD odr-use vs template arguments and constexpr functions Unknown
1255 drafting Definition problems with constexpr functions Not resolved
1256 open Unevaluated operands are not necessarily constant expressions Not resolved
1257 open Instantiation via non-dependent references in uninstantiated templates Not resolved
1258 CD5 “Instantiation context” differs from dependent lookup rules Unknown
1259 NAD Deleting a POD via a pointer to base Unknown
1260 CD3 Incorrect use of term “overloaded” in description of odr-use Unknown
1261 CD3 Explicit handling of cv-qualification with non-class prvalues Unknown
1262 CD3 Default template arguments and deduction failure Unknown
1263 NAD Mismatch between rvalue reference binding and overload resolution Unknown
1264 CD3 Use of this in constexpr constructor Unknown
1265 CD3 Mixed use of the auto specifier Clang 5
1266 open user-defined-integer-literal overflow Not resolved
1267 CD3 Rvalue reference types in exception-specifications Unknown
1268 CD3 reinterpret_cast of an xvalue operand Unknown
1269 CD3 dynamic_cast of an xvalue operand Unknown
1270 CD3 Brace elision in array temporary initialization Unknown
1271 CD5 Imprecise wording regarding dependent types Unknown
1272 NAD Implicit definition of static data member of const literal type Unknown
1273 NAD Accessibility and function signatures Unknown
1274 CD4 Common nonterminal for expression and braced-init-list Unknown
1275 CD3 Incorrect comment in example of template parameter pack restriction Unknown
1276 NAD Reference to stdint.h Unknown
1277 NAD Lax definition of intmax_t and uintmax_t Unknown
1278 drafting Incorrect treatment of contrived object Not resolved
1279 drafting Additional differences between C++ 2003 and C++ 2011 Not resolved
1280 NAD Object reallocation and reference members Unknown
1281 NAD Virtual and dependent base classes Unknown
1282 CD3 Underspecified destructor exception-specification Unknown
1283 drafting Static data members of classes with typedef name for linkage purposes Not resolved
1284 CD4 Should the lifetime of an array be independent of that of its elements? Unknown
1285 NAD Trivial destructors and object lifetime Unknown
1286 drafting Equivalence of alias templates Not resolved
1287 C++14 Direct initialization vs “implicit” conversion in reference binding Unknown
1288 CD3 Reference list initialization Unknown
1289 NAD Can an alias template name the current instantiation? Unknown
1290 CD3 Lifetime of the underlying array of an initializer_list member Unknown
1291 CD6 Looking up a conversion-type-id N/A
1292 CD4 Dependent calls with braced-init-lists containing a pack expansion Unknown
1293 CD3 String literals in constant expressions Unknown
1294 open Side effects in dynamic/static initialization Not resolved
1295 CD3 Binding a reference to an rvalue bit-field Clang 4
1296 CD3 Ill-formed template declarations (not just definitions) Unknown
1297 CD3 Misplaced function attribute-specifier Unknown
1298 CD3 Incorrect example in overload resolution Unknown
1299 CD5 “Temporary objects” vs “temporary expressions” Unknown
1300 dup T() for array types Unknown
1301 CD3 Value initialization of union Unknown
1302 CD3 noexcept applied to expression of type void Unknown
1303 NAD C language linkage for template with internal linkage Unknown
1304 drafting Omitted array bound with string initialization Not resolved
1305 CD3 alignof applied to array of unknown size Clang 3.0
1306 CD3 Modifying an object within a const member function Unknown
1307 C++14 Overload resolution based on size of array initializer-list Clang 14
1308 CD3 Completeness of class type within an exception-specification Superseded by 1330
1309 CD4 Incorrect note regarding lookup of a member of the current instantiation Unknown
1310 CD3 What is an “acceptable lookup result?” Clang 5
1311 CD3 Volatile lvalues in constant expressions Unknown
1312 CD3 Simulated reinterpret_cast in constant expressions Unknown
1313 CD3 Undefined pointer arithmetic in constant expressions Unknown
1314 NAD Pointer arithmetic within standard-layout objects Unknown
1315 CD4 Restrictions on non-type template arguments in partial specializations Partial
1316 NAD constexpr function requirements and class scope Unknown
1317 NAD Unnamed scoped enumerations Unknown
1318 CD3 Syntactic ambiguities with final Unknown
1319 NAD Error in pack expansion example Unknown
1320 CD3 Converting scoped enumerations to bool Unknown
1321 CD3 Equivalency of dependent calls Unknown
1322 drafting Function parameter type decay in templates Not resolved
1323 NAD Nonexistent nonterminal in alignment-specifier grammar Unknown
1324 CD3 Value initialization and defaulted constructors Unknown
1325 NAD Omitted declarator in friend declarations Unknown
1326 dup Deducing an array bound from an initializer-list Unknown
1327 CD3 virt-specifier in a defaulted definition Unknown
1328 CD3 Conflict in reference binding vs overload resolution Unknown
1329 CD3 Recursive deduction substitutions Unknown
1330 CD3 Delayed instantiation of noexcept specifiers Clang 4 (C++11 onwards)
1331 CD5 const mismatch with defaulted copy constructor Unknown
1332 CD5 Handling of invalid universal-character-names Unknown
1333 CD3 Omission of const in a defaulted copy constructor Unknown
1334 NAD Layout compatibility and cv-qualification Superseded by 1719
1335 CD6 Stringizing, extended characters, and universal-character-names Unknown
1336 CD3 Definition of “converting constructor” Unknown
1337 dup Partial ordering and non-deduced parameters Unknown
1338 CD4 Aliasing and allocation functions Unknown
1339 NAD Parenthesized braced-init-list and arrays Unknown
1340 CD3 Complete type in member pointer expressions Clang 2.9
1341 NAD Bit-field initializers Superseded by P0683R1
1342 CD6 Order of initialization with multiple declarators Unknown
1343 C++17 Sequencing of non-class initialization Unknown
1344 C++14 Adding new special member functions to a class via default arguments Unknown
1345 CD3 Initialization of anonymous union class members Unknown
1346 CD3 expression-list initializers and the auto specifier Clang 3.5
1347 CD3 Consistency of auto in multiple-declarator declarations Clang 3.1
1348 drafting Use of auto in a trailing-return-type Not resolved
1349 dup Consistency of alias template redeclarations Unknown
1350 CD3 Incorrect exception specification for inherited constructors Clang 3.5
1351 CD4 Problems with implicitly-declared exception-specifications Unknown
1352 CD3 Inconsistent class scope and completeness rules Clang 3.0
1353 DRWP Array and variant members and deleted special member functions Unknown
1354 CD3 Destructor exceptions for temporaries in noexcept expressions Unknown
1355 CD3 Aggregates and “user-provided” constructors Unknown
1356 CD4 Exception specifications of copy assignment operators with virtual bases Unknown
1357 CD3 brace-or-equal-initializers for function and typedef members Unknown
1358 CD3 Unintentionally ill-formed constexpr function template instances Clang 3.1
1359 CD3 constexpr union constructors Clang 3.5
1360 CD6 constexpr defaulted default constructors Unknown
1361 CD3 Requirement on brace-or-equal-initializers of literal types Unknown
1362 CD3 Complete type required for implicit conversion to T& Unknown
1363 CD3 Triviality vs multiple default constructors Unknown
1364 CD3 constexpr function parameters Unknown
1365 CD3 Calling undefined constexpr functions Unknown
1366 CD3 Deleted constexpr constructors and virtual base classes Unknown
1367 CD3 Use of this in a constant expression Unknown
1368 CD3 Value initialization and defaulted constructors (part 2) Unknown
1369 CD3 Function invocation substitution of this Unknown
1370 CD3 identifier-list cannot contain ellipsis Unknown
1371 NAD Deduction from T&& in return types Unknown
1372 CD3 Cross-references incorrect in conversion function template argument deduction Unknown
1373 dup Overload resolution changes matching reference-binding changes Unknown
1374 CD3 Qualification conversion vs difference in reference binding Unknown
1375 CD3 Reference to anonymous union? Unknown
1376 C++14 static_cast of temporary to rvalue reference Unknown
1377 dup Access declarations not mentioned in Annex C Unknown
1378 CD5 When is an instantiation required? Unknown
1379 NAD Is std::initializer_list an aggregate? Unknown
1380 CD3 Type definitions in template-parameter parameter-declarations Unknown
1381 CD3 Implicitly-declared special member functions and default nothrow Unknown
1382 CD3 Dead code for constructor names Unknown
1383 CD3 Clarifying discarded-value expressions Unknown
1384 NAD reinterpret_cast in constant expressions Unknown
1385 CD3 Syntactic forms of conversion functions for surrogate call functions Unknown
1386 NAD Explicitly-specified partial argument list with multiple parameter packs Unknown
1387 CD3 Missing non-deduced context for decltype Unknown
1388 CD3 Missing non-deduced context following a function parameter pack Clang 4
1389 NAD Recursive reference in trailing-return-type Unknown
1390 drafting Dependency of alias template specializations Not resolved
1391 CD4 Conversions to parameter types with non-deduced template arguments Partial
1392 CD3 Explicit conversion functions for references and non-references Unknown
1393 C++17 Pack expansions in using-declarations Unknown
1394 CD3 Incomplete types as parameters of deleted functions Clang 15
1395 C++17 Partial ordering of variadic templates reconsidered Clang 16
1396 C++23 Deferred instantiation and checking of non-static data member initializers Unknown
1397 CD4 Class completeness in non-static data member initializers Clang 3.2
1398 CD3 Non-type template parameters of type std::nullptr_t Unknown
1399 CD3 Deduction with multiple function parameter packs Duplicate of 1388
1400 NAD Function pointer equality Unknown
1401 CD3 Similar types and reference compatibility Unknown
1402 CD3 Move functions too often deleted Unknown
1403 CD6 Universal-character-names in comments Unknown
1404 drafting Object reallocation in unions Not resolved
1405 CD3 constexpr and mutable members of literal types Unknown
1406 CD3 ref-qualifiers and added parameters of non-static member function templates Unknown
1407 NAD Integral to bool conversion in converted constant expressions Unknown
1408 CD3 What is “the same aggregate initialization?” Unknown
1409 CD3 What is the second standard conversion sequence of a list-initialization sequence? Unknown
1410 CD3 Reference overload tiebreakers should apply to rvalue references Unknown
1411 CD3 More on global scope :: in nested-name-specifier Unknown
1412 CD3 Problems in specifying pointer conversions Unknown
1413 CD3 Missing cases of value-dependency Clang 12
1414 drafting Binding an rvalue reference to a reference-unrelated lvalue Not resolved
1415 CD3 Missing prohibition of block-scope definition of extern object Unknown
1416 CD3 Function cv-qualifiers and typeid Unknown
1417 C++14 Pointers/references to functions with cv-qualifiers or ref-qualifier Unknown
1418 CD3 Type of initializer_list backing array Unknown
1419 NAD Evaluation order in aggregate initialization Unknown
1420 NAD Abstract final classes Unknown
1421 NAD Full expressions and aggregate initialization Unknown
1422 dup Type of character literals containing universal-character-names Unknown
1423 CD3 Convertibility of nullptr to bool Clang 11
1424 C++14 When must sub-object destructors be accessible? Unknown
1425 CD3 Base-class subobjects of standard-layout structs N/A (ABI constraint)
1426 CD5 Allowing additional parameter types in defaulted functions Unknown
1427 NAD Default constructor and deleted or inaccessible destructors Unknown
1428 CD3 Dynamic const objects Unknown
1429 NAD Scope of a member template's template parameter Unknown
1430 open Pack expansion into fixed alias template parameter list Not resolved
1431 CD3 Exceptions from other than throw-expressions Unknown
1432 C++17 Newly-ambiguous variadic template expansions Clang 16
1433 NAD trailing-return-type and point of declaration Unknown
1434 NAD Parenthesized braced-init-list Unknown
1435 CD3 template-id as the declarator for a class template constructor Unknown
1436 open Interaction of constant expression changes with preprocessor expressions Not resolved
1437 CD3 alignas in alias-declaration Unknown
1438 CD3 Non-dereference use of invalid pointers Unknown
1439 CD3 Lookup and friend template declarations Unknown
1440 CD3 Acceptable decltype-specifiers used as nested-name-specifiers Unknown
1441 C++14 Unclear wording for signal handler restrictions Unknown
1442 CD3 Argument-dependent lookup in the range-based for Unknown
1443 NAD Default arguments and non-static data members Yes
1444 drafting Type adjustments of non-type template parameters Not resolved
1445 dup Argument-dependent lookup of begin and end Unknown
1446 CD4 Member function with no ref-qualifier and non-member function with rvalue reference Unknown
1447 CD3 static_cast of bit-field lvalue to rvalue reference Unknown
1448 NAD Integral values of type bool Unknown
1449 CD3 Narrowing conversion of negative value to unsigned type Unknown
1450 CD3 INT_MIN % -1 Unknown
1451 CD4 Objects with no linkage in non-type template arguments Unknown
1452 NAD Value-initialized objects may be constants Unknown
1453 CD3 Volatile members in literal classes? Unknown
1454 CD3 Passing constants through constexpr functions via references Unknown
1455 CD3 Lvalue converted constant expressions Unknown
1456 CD3 Address constant expression designating the one-past-the-end address Unknown
1457 CD3 Undefined behavior in left-shift Unknown
1458 CD3 Address of incomplete type vs operator&() Clang 3.1
1459 open Reference-binding tiebreakers in overload resolution Not resolved
1460 C++14 What is an empty union? Clang 3.5
1461 NAD Narrowing conversions to bit-fields Unknown
1462 CD3 Deduction failure vs “ill-formed, no diagnostic required” Unknown
1463 drafting extern "C" alias templates Not resolved
1464 CD3 Negative array bound in a new-expression Unknown
1465 CD4 noexcept and std::bad_array_new_length Unknown
1466 C++14 Visible sequences of side effects are redundant Unknown
1467 CD4 List-initialization of aggregate from same-type object Clang 3.7 (C++11 onwards)
1468 CD5 typeid, overload resolution, and implicit lambda capture Unknown
1469 CD5 Omitted bound in array new-expression Unknown
1470 NAD Thread migration Unknown
1471 CD3 Nested type of non-dependent base Unknown
1472 CD3 odr-use of reference variables Unknown
1473 CD3 Syntax of literal-operator-id Unknown
1474 NAD User-defined literals and <inttypes.h> format macros Unknown
1475 CD3 Errors in [[carries_dependency]] example Unknown
1476 CD3 Definition of user-defined type Unknown
1477 CD3 Definition of a friend outside its namespace Unknown
1478 CD6 template keyword for dependent template template arguments Unknown
1479 CD3 Literal operators and default arguments Clang 3.1
1480 CD3 Constant initialization via non-constant temporary Unknown
1481 CD3 Increment/decrement operators with reference parameters Unknown
1482 CD3 Point of declaration of enumeration Clang 3.0
1483 NAD Non-dependent static_assert-declarations Unknown
1484 CD4 Unused local classes of function templates Unknown
1485 drafting Out-of-class definition of member unscoped opaque enumeration Not resolved
1486 drafting Base-derived conversion in member pointer deduction Not resolved
1487 CD3 When are inheriting constructors declared? Clang 3.3
1488 drafting abstract-pack-declarators in type-ids Not resolved
1489 CD3 Is value-initialization of an array constant initialization? Unknown
1490 CD4 List-initialization from a string literal Clang 3.7 (C++11 onwards)
1491 CD3 Move construction and rvalue reference members Unknown
1492 CD4 Exception specifications on template destructors Unknown
1493 C++14 Criteria for move-construction Unknown
1494 CD3 Temporary initialization for reference binding in list-initialization Unknown
1495 CD3 Partial specialization of variadic class template Clang 4
1496 CD4 Triviality with deleted and missing default constructors No
1497 NAD Aggregate initialization with parenthesized string literal Unknown
1498 dup Lifetime of temporaries in range-based for Unknown
1499 drafting Missing case for deleted move assignment operator Not resolved
1500 CD6 Name lookup of dependent conversion function Unknown
1501 NAD Nested braces in list-initialization Unknown
1502 CD3 Value initialization of unions with member initializers Unknown
1503 CD3 Exceptions during copy to exception object Unknown
1504 CD3 Pointer arithmetic after derived-base conversion Unknown
1505 dup Direct binding of reference to temporary in list-initialization Unknown
1506 CD3 Value category of initializer_list object Unknown
1507 CD3 Value initialization with trivial inaccessible default constructor Unknown
1508 C++14 Template initializer-list constructors Unknown
1509 C++14 Definition of “non-template function” Unknown
1510 CD3 cv-qualified references via decltype Unknown
1511 CD3 const volatile variables and the one-definition rule Unknown
1512 CD3 Pointer comparison vs qualification conversions Clang 4
1513 drafting initializer_list deduction failure Not resolved
1514 C++14 Ambiguity between enumeration definition and zero-length bit-field Clang 11
1515 CD3 Modulo 2n arithmetic for implicitly-unsigned types Unknown
1516 CD3 Definition of “virtual function call” Unknown
1517 drafting Unclear/missing description of behavior during construction/destruction Not resolved
1518 CD4 Explicit default constructors and copy-list-initialization Clang 4
1519 NAD Conflicting default and variadic constructors Unknown
1520 NAD Alias template specialization vs pack expansion Unknown
1521 drafting T{expr} with reference types Not resolved
1522 CD3 Access checking for initializer_list array initialization Unknown
1523 CD5 Point of declaration in range-based for Unknown
1524 drafting Incompletely-defined class template base Not resolved
1525 NAD Array bound inference in temporary array Unknown
1526 dup Dependent-class lookup in the current instantiation Unknown
1527 CD3 Assignment from braced-init-list Unknown
1528 CD3 Repeated cv-qualifiers in declarators Unknown
1529 drafting Nomenclature for variable vs reference non-static data member Not resolved
1530 drafting Member access in out-of-lifetime objects Not resolved
1531 CD3 Definition of “access” (verb) Unknown
1532 CD3 Explicit instantiation and member templates Unknown
1533 CD3 Function pack expansion for member initialization Unknown
1534 dup cv-qualification of prvalue of type “array of class” Unknown
1535 CD3 typeid in core constant expressions Unknown
1536 drafting Overload resolution with temporary from initializer list Not resolved
1537 CD3 Optional compile-time evaluation of constant expressions Unknown
1538 CD3 C-style cast in braced-init-list assignment Unknown
1539 CD3 Definition of “character type” Unknown
1540 NAD Use of address constants in constant expressions Unknown
1541 CD3 cv void return types Unknown
1542 drafting Compound assignment of braced-init-list Not resolved
1543 CD3 Implicit conversion sequence for empty initializer list Unknown
1544 CD3 Linkage of member of unnamed namespace Unknown
1545 NAD friend function templates defined in class templates Unknown
1546 NAD Errors in function template default arguments Unknown
1547 NAD typename keyword in alias-declarations Unknown
1548 drafting Copy/move construction and conversion functions Not resolved
1549 open Overloaded comma operator with void operand Not resolved
1550 CD3 Parenthesized throw-expression operand of conditional-expression Clang 3.4
1551 C++14 Wording problems in using-declaration specification Unknown
1552 CD4 exception-specifications and defaulted special member functions Unknown
1553 CD3 sizeof and xvalue bit-fields Unknown
1554 drafting Access and alias templates Not resolved
1555 NAD Language linkage and function type compatibility Unknown
1556 CD3 Constructors and explicit conversion functions in direct initialization Unknown
1557 CD3 Language linkage of converted lambda function pointer Unknown
1558 CD4 Unused arguments in alias template specializations Clang 12
1559 CD3 String too long in initializer list of new-expression Unknown
1560 CD3 Gratuitous lvalue-to-rvalue conversion in conditional-expression with throw-expression operand Clang 3.5
1561 CD4 Aggregates with empty base classes Unknown
1562 C++14 Non-static data member initializers and union ctor-initializer Unknown
1563 CD3 List-initialization and overloaded function disambiguation Yes
1564 NAD Template argument deduction from an initializer list Unknown
1565 NAD Copy elision and lifetime of initializer_list underlying array Unknown
1566 NAD Should new std::initializer_list<T> be ill-formed? Unknown
1567 C++14 Inheriting constructors and copy/move constructors Clang 3.3
1568 dup Temporary lifetime extension with intervening cast Unknown
1569 C++14 Deducing a function parameter pack before ellipsis Unknown
1570 C++14 Address of subobject as non-type template argument Unknown
1571 CD4 cv-qualification for indirect reference binding via conversion function Unknown
1572 CD4 Incorrect example for rvalue reference binding via conversion function Unknown
1573 CD4 Inherited constructor characteristics Clang 3.9
1574 NAD Explicitly-defaulted constexpr functions in wrapper templates Unknown
1575 C++14 Incorrect definition of “strict pointer safety” Unknown
1576 C++14 Discarded-value volatile xvalues Unknown
1577 NAD Unnecessary restrictions on partial specializations Unknown
1578 NAD Value-initialization of aggregates Unknown
1579 C++14 Return by converting move constructor Clang 3.9
1580 drafting Default arguments in explicit instantiations Not resolved
1581 CD5 When are constexpr member functions defined? Unknown
1582 drafting Template default arguments and deduction failure Not resolved
1583 C++14 Incorrect example of unspecified behavior Unknown
1584 drafting Deducing function types from cv-qualified types Not Resolved*
1585 NAD Value category of member access of rvalue reference member Unknown
1586 NAD Naming a destructor via decltype Unknown
1587 C++14 constexpr initialization and nested anonymous unions Unknown
1588 CD3 Deducing cv-qualified auto Unknown
1589 CD4 Ambiguous ranking of list-initialization sequences Clang 3.7 (C++11 onwards)
1590 CD4 Bypassing non-copy/move constructor copying Unknown
1591 CD4 Deducing array bound and element type from initializer list Unknown
1592 C++14 When do template parameters match? Unknown
1593 C++14 “Parameter type” of special member functions Unknown
1594 drafting Lazy declaration of special members vs overload errors Not resolved
1595 C++14 Constructors “involved in” subobject initialization Unknown
1596 CD4 Non-array objects as array[1] Unknown
1597 CD3 Misleading constexpr example Unknown
1598 C++14 Criterion for equality of pointers to members Unknown
1599 CD4 Lifetime of initializer_list underlying array Unknown
1600 CD4 Erroneous reference initialization in example Unknown
1601 C++14 Promotion of enumeration with fixed underlying type Clang 10
1602 review Linkage of specialization vs linkage of template arguments Not resolved
1603 CD4 Errors resulting from giving unnamed namespaces internal linkage Unknown
1604 C++14 Double temporaries in reference initialization Unknown
1605 CD3 Misleading parenthetical comment for explicit destructor call Unknown
1606 NAD sizeof closure class Clang 3.1
1607 C++14 Lambdas in template parameters Unknown
1608 C++14 Operator lookup in trailing return type Unknown
1609 open Default arguments and function parameter packs Not resolved
1610 drafting Cv-qualification in deduction of reference to array Not resolved
1611 C++14 Deleted default constructor for abstract class Duplicate of 1658
1612 C++14 Implicit lambda capture and anonymous unions Unknown
1613 C++14 Constant expressions and lambda capture Unknown
1614 CD4 Address of pure virtual function vs odr-use Unknown
1615 CD4 Alignment of types, variables, and members Unknown
1616 CD6 Disambiguation parsing and template parameters Unknown
1617 open alignas and non-defining declarations Not resolved
1618 C++14 Gratuitously-unsigned underlying enum type Unknown
1619 open Definition of current instantiation Not resolved
1620 open User-defined literals and extended integer types Not resolved
1621 C++20 Member initializers in anonymous unions Unknown
1622 C++17 Empty aggregate initializer for union Unknown
1623 drafting Deleted default union constructor and member initializers Not resolved
1624 NAD Destruction of union members with member initializers Unknown
1625 open Adding spaces between tokens in stringizing Not resolved
1626 open constexpr member functions in brace-or-equal-initializers Not resolved
1627 NAD Agreement of dependent alignas specifiers Unknown
1628 open Deallocation function templates Not resolved
1629 C++14 Can a closure class be a literal type? Unknown
1630 CD4 Multiple default constructor templates Unknown
1631 CD4 Incorrect overload resolution for single-element initializer-list Clang 3.7
1632 CD5 Lambda capture in member initializers Unknown
1633 CD4 Copy-initialization in member initialization Unknown
1634 drafting Temporary storage duration Not resolved
1635 drafting How similar are template default arguments to function default arguments? Not resolved
1636 CD5 Bits required for negative enumerator values Unknown
1637 NAD Recursion in constexpr template default constructor Unknown
1638 CD4 Declaring an explicit specialization of a scoped enumeration Clang 3.1
1639 CD4 exception-specifications and pointer/pointer-to-member expressions Unknown
1640 CD5 Array of abstract instance of class template Unknown
1641 NAD Assignment in member initializer Unknown
1642 DRWP Missing requirements for prvalue operands Unknown
1643 NAD Default arguments for template parameter packs Unknown
1644 NAD Equivalent exception-specifications in function template declarations Unknown
1645 CD4 Identical inheriting constructors via default arguments Clang 3.9
1646 CD5 decltype-specifiers, abstract classes, and deduction failure Unknown
1647 drafting Type agreement of non-type template arguments in partial specializations Not resolved
1648 C++14 thread_local vs block extern declarations Unknown
1649 C++14 Error in the syntax of mem-initializer-list Unknown
1650 NAD Class prvalues in reference initialization Unknown
1651 NAD Lifetime extension of temporary via reference to subobject Unknown
1652 CD4 Object addresses in constexpr expressions Clang 3.6
1653 CD4 Removing deprecated increment of bool Clang 4 (C++17 onwards)
1654 dup Literal types and constexpr defaulted constructors Unknown
1655 drafting Line endings in raw string literals Not resolved
1656 CD6 Encoding of numerically-escaped characters Unknown
1657 CD4 Attributes for namespaces and enumerators Unknown
1658 C++14 Deleted default constructor for abstract class via destructor Clang 5
1659 open Initialization order of thread_local template static data members Not resolved
1660 C++14 member-declaration requirements and unnamed bit-fields Unknown
1661 NAD Preservation of infinite loops Unknown
1662 C++14 Capturing function parameter packs Unknown
1663 NAD Capturing an empty pack expansion Unknown
1664 C++14 Argument-dependent lookup of lambdas used in default arguments Unknown
1665 drafting Declaration matching in explicit instantiations Not resolved
1666 C++14 Address constant expressions Unknown
1667 NAD Function exiting via exception called by destructor during unwinding Unknown
1668 drafting Parameter type determination still not clear enough Not resolved
1669 C++14 auto return type for main Unknown
1670 drafting auto as conversion-type-id Not resolved
1671 NAD Unclear rules for deduction with cv-qualification Unknown
1672 CD4 Layout compatibility with multiple empty bases Clang 7
1673 C++14 Clarifying overload resolution for the second step of copy-initialization Unknown
1674 C++14 Return type deduction for address of function Unknown
1675 NAD Size limit for automatic array object Unknown
1676 drafting auto return type for allocation and deallocation functions Not resolved
1677 C++17 Constant initialization via aggregate initialization Unknown
1678 NAD Naming the type of an array of runtime bound Unknown
1679 NAD Range-based for and array of runtime bound Unknown
1680 drafting Including <initializer_list> for range-based for Not resolved
1681 C++14 init-captures and nested lambdas Unknown
1682 open Overly-restrictive rules on function templates as allocation functions Not resolved
1683 CD4 Incorrect example after constexpr changes Unknown
1684 C++14 Static constexpr member functions for non-literal classes Clang 3.6
1685 NAD Value category of noexcept expression Unknown
1686 CD4 Which variables are “explicitly declared const?” Unknown
1687 C++14 Conversions of operands of built-in operators Clang 7
1688 NAD Volatile constexpr variables Unknown
1689 C++14 Syntactic nonterminal for operand of alignas Unknown
1690 C++14 Associated namespace for local type Clang 9
1691 C++14 Argument-dependent lookup and opaque enumerations Clang 9
1692 C++14 Associated namespaces of doubly-nested classes Clang 9
1693 C++14 Superfluous semicolons in class definitions Unknown
1694 CD4 Restriction on reference to temporary as a constant expression Unknown
1695 NAD Lifetime extension via init-capture Unknown
1696 CD4 Temporary lifetime and non-static data member initializers Clang 7
1697 CD4 Lifetime extension and copy elision Unknown
1698 DRWP Files ending in \ Unknown
1699 open Does befriending a class befriend its friends? Not resolved
1700 NAD Does the special rvalue-reference deduction apply to alias templates? Unknown
1701 drafting Array vs sequence in object representation Not resolved
1702 drafting Rephrasing the definition of “anonymous union” Not resolved
1703 NAD Language linkage of names of functions with internal linkage Unknown
1704 CD5 Type checking in explicit instantiation of variable templates Unknown
1705 CD4 Unclear specification of “more specialized” Unknown
1706 drafting alignas pack expansion syntax Not resolved
1707 C++14 template in elaborated-type-specifier without nested-name-specifier Unknown
1708 CD4 overly-strict requirements for names with C language linkage Unknown
1709 drafting Stringizing raw string literals containing newline Not resolved
1710 C++17 Missing template keyword in class-or-decltype No
1711 CD6 Missing specification of variable template partial specializations Unknown
1712 CD4 constexpr variable template declarations Unknown
1713 dup Linkage of variable template specializations Unknown
1714 NAD odr-use of this from a local class Unknown
1715 CD4 Access and inherited constructor templates Clang 3.9
1716 C++14 When are default arguments evaluated? Unknown
1717 C++14 Missing specification of type of binary literal Unknown
1718 drafting Macro invocation spanning end-of-file Not resolved
1719 CD4 Layout compatibility and cv-qualification revisited Clang 19
1720 NAD Macro invocation in #include directive Unknown
1721 review Diagnosing ODR violations for static data members Not resolved
1722 CD4 Should lambda to function pointer conversion function be noexcept? Clang 9
1723 drafting Multicharacter user-defined character literals Not resolved
1724 CD6 Unclear rules for deduction failure Unknown
1725 NAD Trailing return type with nested function declarator Unknown
1726 CD6 Declarator operators and conversion function Unknown
1727 NAD Type of a specialization of a variable template Unknown
1728 CD5 Type of an explicit instantiation of a variable template Unknown
1729 CD6 Matching declarations and definitions of variable templates Unknown
1730 drafting Can a variable template have an unnamed type? Not resolved
1731 NAD is_trivially_X and definitions of special member functions Unknown
1732 C++14 Defining types in conditions and range-based for statements Unknown
1733 CD6 Return type and value for operator= with ref-qualifier Unknown
1734 CD4 Nontrivial deleted copy functions No
1735 drafting Out-of-range literals in user-defined-literals Not resolved
1736 CD4 Inheriting constructor templates in a local class Clang 3.9
1737 C++14 Type dependence of call to a member of the current instantiation Unknown
1738 C++14 Explicit instantiation/specialization of inheriting constructor templates Superseded by P0136R1
1739 C++14 Conversion of floating point to enumeration Unknown
1740 C++14 Disambiguation of noexcept Unknown
1741 C++14 odr-use of class object in lvalue-to-rvalue conversion Unknown
1742 CD5 using-declarations and scoped enumerators Unknown
1743 NAD init-captures in nested lambdas Unknown
1744 CD4 Unordered initialization for variable template specializations Unknown
1745 NAD thread_local constexpr variable Unknown
1746 C++14 Are volatile scalar types trivially copyable? Unknown
1747 C++14 Constant initialization of reference to function Unknown
1748 CD4 Placement new with a null pointer Clang 3.7
1749 NAD Confusing definition for constant initializer Unknown
1750 CD4 “Argument” vs “parameter” Unknown
1751 CD4 Non-trivial operations vs non-trivial initialization Unknown
1752 CD4 Right-recursion in mem-initializer-list Unknown
1753 CD4 decltype-specifier in nested-name-specifier of destructor Clang 11
1754 NAD Declaration of partial specialization of static data member template Unknown
1755 drafting Out-of-class partial specializations of member templates Not resolved
1756 CD4 Direct-list-initialization of a non-class object Clang 3.7
1757 CD4 Const integral subobjects Unknown
1758 CD4 Explicit conversion in copy/move list initialization Clang 3.7
1759 C++14 UTF-8 code units in plain char Unknown
1760 C++14 Access of member corresponding to init-capture Unknown
1761 NAD Runtime check on size of automatic array Unknown
1762 C++14 Reserved identifier used in literal-operator-id example Clang 14
1763 open Length mismatch in template type deduction Not resolved
1764 C++14 Hiding of function from using-declaration by signature Unknown
1765 C++14 Overflow of enumeration used as enumerator value Unknown
1766 CD4 Values outside the range of the values of an enumeration Unknown
1767 C++14 Scoped enumeration in a switch statement Unknown
1768 NAD Zero-element array of runtime bound Unknown
1769 C++14 Catching a base class of the exception object Unknown
1770 C++14 Type matching of non-type template parameters and arguments Unknown
1771 CD6 Restricted lookup in nested-name-specifier Unknown
1772 C++14 __func__ in a lambda body Clang 14
1773 C++14 Out-of-lifetime lvalue-to-rvalue conversion Unknown
1774 CD4 Discrepancy between subobject destruction and stack unwinding Unknown
1775 C++14 Undefined behavior of line splice in raw string literal Unknown
1776 CD4 Replacement of class objects containing reference members Unknown
1777 CD4 Empty pack expansion in dynamic-exception-specification Unknown
1778 C++14 exception-specification in explicitly-defaulted functions Clang 9
1779 CD4 Type dependency of __func__ Clang 14
1780 CD4 Explicit instantiation/specialization of generic lambda operator() Unknown
1781 CD5 Converting from nullptr_t to bool in overload resolution Unknown
1782 CD4 Form of initialization for nullptr_t to bool conversion Unknown
1783 NAD Why are virtual destructors non-trivial? Unknown
1784 C++17 Concurrent execution during static local initialization Unknown
1785 NAD Conflicting diagnostic requirements for template definitions Unknown
1786 C++14 Effect of merging allocations on memory leakage Unknown
1787 C++14 Uninitialized unsigned char values Unknown
1788 CD4 Sized deallocation of array of non-class type Unknown
1789 open Array reference vs array decay in overload resolution Not resolved
1790 open Ellipsis following function parameter pack Not resolved
1791 CD4 Incorrect restrictions on cv-qualifier-seq and ref-qualifier Unknown
1792 NAD Incorrect example of explicit specialization of member enumeration Unknown
1793 CD4 thread_local in explicit specializations Unknown
1794 C++17 template keyword and alias templates Yes
1795 CD4 Disambiguating original-namespace-definition and extension-namespace-definition Unknown
1796 CD4 Is all-bits-zero for null characters a meaningful requirement? Unknown
1797 CD4 Are all bit patterns of unsigned char distinct numbers? Unknown
1798 NAD exception-specifications of template arguments Unknown
1799 CD4 mutable and non-explicit const qualification Unknown
1800 CD4 Pointer to member of nested anonymous union Clang 2.9
1801 CD4 Kind of expression referring to member of anonymous union Clang 2.8
1802 CD4 char16_t string literals and surrogate pairs Clang 3.1
1803 CD5 opaque-enum-declaration as member-declaration Clang 2.9
1804 CD4 Partial specialization and friendship Clang 2.7
1805 CD4 Conversions of array operands in conditional-expressions Unknown
1806 CD4 Virtual bases and move-assignment Unknown
1807 CD4 Order of destruction of array elements after an exception Clang 3.0
1808 drafting Constructor templates vs default constructors Not resolved
1809 CD4 Narrowing and template argument deduction Unknown
1810 CD4 Invalid ud-suffixes Unknown
1811 CD4 Lookup of deallocation function in a virtual destructor definition Unknown
1812 C++17 Omission of template in a typename-specifier No
1813 CD4 Direct vs indirect bases in standard-layout classes Clang 7
1814 CD4 Default arguments in lambda-expressions Yes
1815 CD4 Lifetime extension in aggregate initialization No
1816 CD4 Unclear specification of bit-field values Unknown
1817 drafting Linkage specifications and nested scopes Not resolved
1818 CD6 Visibility and inherited language linkage Unknown
1819 CD4 Acceptable scopes for definition of partial specialization Unknown
1820 CD6 Qualified typedef names Clang 3.5
1821 CD6 Qualified redeclarations in a class member-specification Clang 2.9
1822 CD6 Lookup of parameter names in lambda-expressions Yes
1823 CD4 String literal uniqueness in inline functions Unknown
1824 CD4 Completeness of return type vs point of instantiation Clang 2.7
1825 C++17 Partial ordering between variadic and non-variadic function templates Unknown
1826 NAD const floating-point in constant expressions Unknown
1827 drafting Reference binding with ambiguous conversions Not resolved
1828 CD6 nested-name-specifier ambiguity Unknown
1829 CD6 Dependent unnamed types Unknown
1830 CD4 Repeated specifiers Unknown
1831 NAD Explicitly vs implicitly deleted move constructors Unknown
1832 CD4 Casting to incomplete enumeration Clang 3.0
1833 NAD friend declarations naming implicitly-declared member functions Unknown
1834 CD4 Constant initialization binding a reference to an xvalue Unknown
1835 CD6 Dependent member lookup before < Unknown
1836 CD5 Use of class type being defined in trailing-return-type Unknown
1837 CD6 Use of this in friend and local class declarations Clang 3.3
1838 CD4 Definition via unqualified-id and using-declaration Unknown
1839 CD6 Lookup of block-scope extern declarations Unknown
1840 drafting Non-deleted explicit specialization of deleted function template Not resolved
1841 CD6 < following template injected-class-name Unknown
1842 open Unevaluated operands and “carries a dependency” Not resolved
1843 CD4 Bit-field in conditional operator with throw operand Unknown
1844 open Defining “immediate context” Not resolved
1845 drafting Point of instantiation of a variable template specialization Not resolved
1846 CD4 Declaring explicitly-defaulted implicitly-deleted functions Unknown
1847 CD4 Clarifying compatibility during partial ordering Unknown
1848 CD4 Parenthesized constructor and destructor declarators Unknown
1849 CD6 Variable templates and the ODR Unknown
1850 CD4 Differences between definition context and point of instantiation Unknown
1851 CD4 decltype(auto) in new-expressions Unknown
1852 CD4 Wording issues regarding decltype(auto) Unknown
1853 dup Defining “allocated storage” Unknown
1854 drafting Disallowing use of implicitly-deleted functions Not resolved
1855 dup Out-of-lifetime access to nonstatic data members Unknown
1856 open Indirect nested classes of class templates Not resolved
1857 CD5 Additional questions about bits Unknown
1858 CD4 Comparing pointers to union members Unknown
1859 CD5 UTF-16 in char16_t string literals Unknown
1860 C++17 What is a “direct member?” Unknown
1861 CD4 Values of a bit-field Unknown
1862 CD5 Determining “corresponding members” for friendship No
1863 CD4 Requirements on thrown object type to support std::current_exception() Unknown
1864 NAD List-initialization of array objects Unknown
1865 CD4 Pointer arithmetic and multi-level qualification conversions Unknown
1866 CD4 Initializing variant members with non-trivial destructors Unknown
1867 NAD Function/expression ambiguity with qualified parameter name Unknown
1868 drafting Meaning of “placeholder type” Not resolved
1869 NAD thread_local vs linkage-specifications Unknown
1870 CD4 Contradictory wording about definitions vs explicit specialization/instantiation Unknown
1871 NAD Non-identifier characters in ud-suffix Unknown
1872 CD4 Instantiations of constexpr templates that cannot appear in constant expressions Clang 9
1873 CD4 Protected member access from derived class friends Unknown
1874 CD4 Type vs non-type template parameters with class keyword Unknown
1875 CD4 Reordering declarations in class scope Unknown
1876 NAD Preventing explicit specialization Unknown
1877 CD4 Return type deduction from return with no operand Unknown
1878 CD4 operator auto template Clang 18
1879 NAD Inadequate definition of alignment requirement Unknown
1880 CD4 When are parameter objects destroyed? Unknown
1881 CD4 Standard-layout classes and unnamed bit-fields Clang 7
1882 CD4 Reserved names without library use Unknown
1883 drafting Protected access to constructors in mem-initializers Not resolved
1884 CD6 Unclear requirements for same-named external-linkage entities Unknown
1885 CD4 Return value of a function is underspecified Unknown
1886 CD4 Language linkage for main() Unknown
1887 CD4 Problems with :: as nested-name-specifier Unknown
1888 CD4 Implicitly-declared default constructors and explicit Unknown
1889 drafting Unclear effect of #pragma on conformance Not resolved
1890 drafting Member type depending on definition of member function Not Resolved*
1891 CD4 Move constructor/assignment for closure class Clang 4
1892 CD4 Use of auto in function type Unknown
1893 CD5 Function-style cast with braced-init-lists and empty pack expansions Unknown
1894 CD6 typedef-names and using-declarations Clang 3.8
1895 CD4 Deleted conversions in conditional operator operands Unknown
1896 CD6 Repeated alias templates Unknown
1897 review ODR vs alternative tokens Not resolved
1898 CD6 Use of “equivalent” in overload resolution Unknown
1899 CD4 Value-dependent constant expressions Unknown
1900 CD6 Do friend declarations count as “previous declarations”? Unknown
1901 drafting punctuator referenced but not defined Not resolved
1902 CD4 What makes a conversion “otherwise ill-formed”? Clang 3.7
1903 CD4 What declarations are introduced by a non-member using-declaration? Clang 2.7
1904 NAD Default template arguments for members of class templates Unknown
1905 NAD Dependent types and injected-class-names Unknown
1906 NAD Name lookup in member friend declaration Unknown
1907 CD6 using-declarations and default arguments Unknown
1908 CD6 Dual destructor lookup and template-ids Unknown
1909 CD4 Member class template with the same name as the class Clang 3.7
1910 CD5 “Shall” requirement applied to runtime behavior Unknown
1911 CD4 constexpr constructor with non-literal base class Unknown
1912 CD5 exception-specification of defaulted function Unknown
1913 CD5 decltype((x)) in lambda-expressions Unknown
1914 extension Duplicate standard attributes Extension
1915 open Potentially-invoked destructors in non-throwing constructors Not resolved
1916 CD4 “Same cv-unqualified type” Unknown
1917 NAD decltype-qualified enumeration names Unknown
1918 CD5 friend templates with dependent scopes No
1919 open Overload resolution for ! with explicit conversion operator Not resolved
1920 CD4 Qualification mismatch in pseudo-destructor-name Unknown
1921 NAD constexpr constructors and point of initialization of const variables Unknown
1922 CD4 Injected class template names and default arguments Unknown
1923 NAD Lvalues of type void Unknown
1924 review Definition of “literal” and kinds of literals Not resolved
1925 CD4 Bit-field prvalues Unknown
1926 CD4 Potential results of subscript operator Unknown
1927 dup Lifetime of temporaries in init-captures Unknown
1928 NAD Triviality of deleted special member functions Unknown
1929 CD4 template keyword following namespace nested-name-specifier Unknown
1930 CD4 init-declarator-list vs member-declarator-list Unknown
1931 CD5 Default-constructible and copy-assignable closure types Unknown
1932 CD4 Bit-field results of conditional operators Unknown
1933 NAD Implementation limit for initializer-list elements Unknown
1934 NAD Relaxing exception-specification compatibility requirements Unknown
1935 CD5 Reuse of placement arguments in deallocation Unknown
1936 CD6 Dependent qualified-ids Unknown
1937 CD5 Incomplete specification of function pointer from lambda Unknown
1938 CD5 Should hosted/freestanding be implementation-defined? Unknown
1939 open Argument conversions to nondeduced parameter types revisited Not resolved
1940 CD4 static_assert in anonymous unions Clang 3.5
1941 CD4 SFINAE and inherited constructor default arguments Clang 3.9
1942 CD4 Incorrect reference to trailing-return-type Unknown
1943 CD5 Unspecified meaning of “bit” Unknown
1944 open New C incompatibilities Not resolved
1945 CD5 Friend declarations naming members of class templates in non-templates No
1946 CD4 exception-specifications vs pointer dereference Unknown
1947 NAD Digit separators following non-octal prefix Clang 3.5
1948 NAD exception-specification of replacement global new Clang 3.5
1949 CD4 “sequenced after” instead of “sequenced before” Unknown
1950 NAD Restructuring description of ranks of conversion sequences Unknown
1951 CD4 Cv-qualification and literal types Unknown
1952 CD4 Constant expressions and library undefined behavior Unknown
1953 open Data races and common initial sequence Not resolved
1954 DR typeid null dereference check in subexpressions Unknown
1955 CD4 #elif with invalid controlling expression Unknown
1956 CD4 Reuse of storage of automatic variables Unknown
1957 NAD decltype(auto) with direct-list-initialization Unknown
1958 CD4 decltype(auto) with parenthesized initializer Unknown
1959 CD4 Inadvertently inherited copy constructor Clang 3.9
1960 NAD Visibility of entity named in class-scope using-declaration No
1961 C++17 Potentially-concurrent actions within a signal handler Unknown
1962 open Type of __func__ Not resolved
1963 CD4 Implementation-defined identifier characters Unknown
1964 NAD opaque-enum-declaration in alias-declaration? Unknown
1965 drafting Explicit casts to reference types Not resolved
1966 CD4 Colon following enumeration elaborated-type-specifier Clang 11
1967 CD4 Temporary lifetime and move-elision Unknown
1968 NAD Address of typeid in constant expressions No
1969 CD6 Missing exclusion of ~S as an ordinary function name Unknown
1970 NAD Ambiguity resolution for (T())*x Unknown
1971 CD4 Unclear disambiguation of destructor and operator~ Unknown
1972 CD6 Identifier character restrictions in non-identifiers Unknown
1973 DRWP Which parameter-declaration-clause in a lambda-expression? Unknown
1974 NAD Redundant specification of non-type typename-specifier Unknown
1975 CD4 Permissible declarations for exception-specifications Unknown
1976 NAD Ambiguity of namespace-aliases Unknown
1977 drafting Contradictory results of failed destructor lookup Not resolved
1978 CD4 Redundant description of explicit constructor use Unknown
1979 drafting Alias template specialization in template member definition Not resolved
1980 drafting Equivalent but not functionally-equivalent redeclarations Not resolved
1981 CD4 Implicit contextual conversions and explicit Unknown
1982 NAD Deduction extending parameter pack Unknown
1983 CD5 Inappropriate use of virt-specifier Unknown
1984 NAD Lossless narrowing conversions Unknown
1985 NAD Unknown bound array member with brace-or-equal-initializer Unknown
1986 drafting odr-use and delayed initialization Not resolved
1987 NAD constexpr static data members across translation units Unknown
1988 CD4 Ambiguity between dependent and non-dependent bases in implicit member access Unknown
1989 drafting Insufficient restrictions on parameters of postfix operators Not resolved
1990 CD4 Ambiguity due to optional decl-specifier-seq Unknown
1991 CD4 Inheriting constructors vs default arguments Clang 3.9
1992 CD4 new (std::nothrow) int[N] can throw Unknown
1993 drafting Use of template<> defining member of explicit specialization Not resolved
1994 dup Confusing wording regarding multiple template<> prefixes Duplicate of 529
1995 CD4 exception-specifications and non-type template parameters Unknown
1996 drafting Reference list-initialization ignores conversion functions Not resolved
1997 drafting Placement new and previous initialization Not resolved
1998 NAD Additional sources of xvalue expressions Unknown
1999 CD4 Representation of source characters as universal-character-names Unknown
2000 CD4 header-name outside #include directive Unknown
2001 CD4 non-directive is underspecified Unknown
2002 open White space within preprocessing directives Not resolved
2003 drafting Zero-argument macros incorrectly specified Not resolved
2004 CD4 Unions with mutable members in constant expressions Unknown
2005 NAD Incorrect constexpr reference initialization requirements Unknown
2006 CD4 Cv-qualified void types Unknown
2007 CD6 Argument-dependent lookup for operator= Clang 3.4
2008 CD4 Default template-arguments underspecified Unknown
2009 CD6 Unclear specification of class scope N/A
2010 CD4 exception-specifications and conversion operators Unknown
2011 C++17 Unclear effect of reference capture of reference Unknown
2012 CD4 Lifetime of references Unknown
2013 drafting Pointer subtraction in large array Not resolved
2014 NAD Unneeded deallocation signatures Unknown
2015 CD4 odr-use of deleted virtual functions Unknown
2016 CD4 Confusing wording in description of conversion function Unknown
2017 CD4 Flowing off end is not equivalent to no-expression return Unknown
2018 dup Qualification conversion vs reference binding Unknown
2019 CD4 Member references omitted from description of storage duration Unknown
2020 CD5 Inadequate description of odr-use of implicitly-invoked functions Unknown
2021 dup Function template redeclaration via alias template Unknown
2022 CD4 Copy elision in constant expressions Unknown
2023 drafting Composite reference result type of conditional operator Not resolved
2024 CD4 Dependent types and unexpanded parameter packs Unknown
2025 dup Declaration matching via alias templates Unknown
2026 CD4 Zero-initialization and constexpr Clang 11
2027 CD4 Unclear requirements for multiple alignas specifiers Unknown
2028 drafting Converting constructors in rvalue reference initialization Not resolved
2029 dup Abstract class return type in decltype operand Unknown
2030 NAD Access of injected-class-name with template arguments Unknown
2031 CD4 Missing incompatibility for && Unknown
2032 CD4 Default template-arguments of variable templates Unknown
2033 CD4 Redundant restriction on partial specialization argument Unknown
2034 NAD Deprecating uncaught_exception() Unknown
2035 CD3 Multi-section example is confusing Unknown
2036 NAD Refactoring parameters-and-qualifiers Unknown
2037 drafting Alias templates and template declaration matching Not resolved
2038 CD4 Document C++14 incompatibility of new braced deduction rule Unknown
2039 CD4 Constant conversions to bool Unknown
2040 CD4 trailing-return-type no longer ambiguous Unknown
2041 CD4 Namespace for explicit class template specialization Unknown
2042 drafting Exceptions and deallocation functions Not resolved
2043 drafting Generalized template arguments and array-to-pointer decay Not resolved
2044 CD4 decltype(auto) and void Unknown
2045 CD5 “Identical” template parameter lists Unknown
2046 C++17 Incomplete thread specifications Unknown
2047 CD4 Coordinating “throws anything” specifications Unknown
2048 open C-style casts that cast away constness vs static_cast Not resolved
2049 DRWP List initializer in non-type template default argument Clang 18
2050 NAD Consolidate specification of linkage Unknown
2051 CD5 Simplifying alias rules Unknown
2052 CD4 Template argument deduction vs overloaded operators Unknown
2053 C++20 auto in non-generic lambdas Unknown
2054 DRWP Missing description of class SFINAE Unknown
2055 drafting Explicitly-specified non-deduced parameter packs Not resolved
2056 drafting Member function calls in partially-initialized class objects Not resolved
2057 drafting Template template arguments with default arguments Not resolved
2058 CD6 More errors from internal-linkage namespaces Unknown
2059 CD5 Linkage and deduced return types Unknown
2060 NAD Deduced return type for explicit specialization Unknown
2061 CD4 Inline namespace after simplifications Yes
2062 CD6 Class template redeclaration requirements Unknown
2063 CD4 Type/nontype hiding in class scope Unknown
2064 CD4 Conflicting specifications for dependent decltype-specifiers Unknown
2065 CD6 Current instantiation of a partial specialization Unknown
2066 CD4 Does type-dependent imply value-dependent? Unknown
2067 open Generated variadic templates requiring empty pack Not resolved
2068 CD4 When can/must a defaulted virtual destructor be defined? Unknown
2069 CD4 Do destructors have names? Unknown
2070 CD6 using-declaration with dependent nested-name-specifier Unknown
2071 CD4 typedef with no declarator Unknown
2072 C++23 Default argument instantiation for member functions of templates Unknown
2073 drafting Allocating memory for exception objects Not resolved
2074 drafting Type-dependence of local class of function template Not resolved
2075 CD4 Passing short initializer lists to array reference parameters Unknown
2076 CD4 List-initialization of arguments for constructor parameters Clang 13
2077 drafting Overload resolution and invalid rvalue-reference initialization Not resolved
2078 NAD Name lookup of mem-initilizer-id Unknown
2079 CD4 [[ appearing in a balanced-token-seq Unknown
2080 CD5 Example with empty anonymous union member Unknown
2081 CD5 Deduced return type in redeclaration or specialization of function template Unknown
2082 CD4 Referring to parameters in unevaluated operands of default arguments Clang 11
2083 CD5 Incorrect cases of odr-use Partial
2084 CD4 NSDMIs and deleted union default constructors Unknown
2085 CD4 Invalid example of adding special member function via default argument Unknown
2086 drafting Reference odr-use vs implicit capture Not resolved
2087 NAD Left shift of negative value by zero bits Unknown
2088 CD5 Late tiebreakers in partial ordering Unknown
2089 drafting Restricting selection of builtin overloaded operators Not resolved
2090 drafting Dependency via non-dependent base class Not resolved
2091 CD4 Deducing reference non-type template arguments Unknown
2092 CD5 Deduction failure and overload resolution Unknown
2093 CD4 Qualification conversion for pointer-to-member handler matching Unknown
2094 C++17 Trivial copy/move constructor for class with volatile member Clang 5
2095 CD4 Capturing rvalue references to functions by copy Unknown
2096 CD4 Constraints on literal unions Duplicate of 2598
2097 extension Lambdas and noreturn attribute Extension
2098 CD4 Is uncaught_exceptions() per-thread? Unknown
2099 CD4 Inferring the bound of an array static data member Unknown
2100 C++17 Value-dependent address of static data member of class template Clang 12
2101 CD4 Incorrect description of type- and value-dependence Unknown
2102 DRWP Constructor checking in new-expression Unknown
2103 CD5 Lvalue-to-rvalue conversion is irrelevant in odr-use of a reference Yes
2104 CD4 Internal-linkage constexpr references and ODR requirements Unknown
2105 open When do the arguments for a parameter pack end? Not resolved
2106 CD4 Unclear restrictions on use of function-type template arguments Unknown
2107 CD4 Lifetime of temporaries for default arguments in array copying Unknown
2108 drafting Conversions to non-class prvalues in reference initialization Not resolved
2109 CD4 Value dependence underspecified Unknown
2110 drafting Overload resolution for base class conversion and reference/non-reference Not resolved
2111 NAD Array temporaries in reference binding Unknown
2112 CD5 new auto{x} Unknown
2113 CD4 Incompete specification of types for declarators Unknown
2114 CD3 Missing description of incompatibility from aggregate NSDMIs Unknown
2115 drafting Order of implicit destruction vs release of automatic storage Not resolved
2116 C++17 Direct or copy initialization for omitted aggregate initializers Unknown
2117 drafting Explicit specializations and constexpr function templates Not resolved
2118 open Stateful metaprogramming via friend injection Not resolved
2119 NAD Disambiguation of multi-level covariant return type Unknown
2120 CD4 Array as first non-static data member in standard-layout class Clang 7
2121 CD6 More flexible lambda syntax Unknown
2122 CD4 Glvalues of void type Unknown
2123 open Omitted constant initialization of local static variables Not resolved
2124 CD4 Signature of constructor template Unknown
2125 NAD Copy elision and comma operator Unknown
2126 C++20 Lifetime-extended temporaries in constant expressions Clang 12
2127 drafting Partial specialization and nullptr Not resolved
2128 drafting Imprecise rule for reference member initializer Not resolved
2129 CD4 Non-object prvalues and constant expressions Unknown
2130 CD4 Over-aligned types in new-expressions Unknown
2131 drafting Ambiguity with opaque-enum-declaration Not resolved
2132 NAD Deprecated default generated copy constructors Unknown
2133 CD5 Converting std::nullptr_t to bool Unknown
2134 NAD Objectless references to non-static member functions Unknown
2135 NAD mem-initializers for virtual bases of abstract classes Unknown
2136 NAD Argument-dependent lookup and initializer lists Unknown
2137 CD4 List-initialization from object of same type Unknown
2138 NAD Explicit member specialization vs implicit instantiation Unknown
2139 NAD Floating-point requirements for integer representation Unknown
2140 CD4 Lvalue-to-rvalue conversion of std::nullptr_t Clang 9
2141 CD4 Ambiguity in new-expression with elaborated-type-specifier Clang 17
2142 NAD Missing definition of associated classes and namespaces Unknown
2143 C++17 Value-dependency via injected-class-name Unknown
2144 tentatively ready Function/variable declaration ambiguity Not resolved
2145 CD4 Parenthesized declarator in function definition Unknown
2146 CD4 Scalar object vs memory location in definition of “unsequenced” Unknown
2147 CD4 Initializer-list arguments and pack deduction Unknown
2148 drafting Thread storage duration and order of initialization Not resolved
2149 DR Brace elision and array length deduction Clang 3.1
2150 CD3 Initializer list array lifetime Unknown
2151 CD4 Exception object is not created Unknown
2152 NAD Can an alternative token be used as a ud-suffix? Unknown
2153 CD4 pure-specifier in friend declaration Unknown
2154 CD4 Ambiguity of pure-specifier Unknown
2155 C++17 Defining classes and enumerations via using-declarations Unknown
2156 CD4 Definition of enumeration declared by using-declaration Unknown
2157 CD4 Further disambiguation of enumeration elaborated-type-specifier Clang 11
2158 drafting Polymorphic behavior during destruction Not resolved
2159 NAD Lambda capture and local thread_local variables Unknown
2160 open Issues with partial ordering Not resolved
2161 NAD Explicit instantiation declaration and “preceding initialization” Unknown
2162 CD3 Capturing this by reference Unknown
2163 CD4 Labels in constexpr functions Unknown
2164 CD5 Name hiding and using-directives Unknown
2165 CD6 Namespaces, declarative regions, and translation units N/A
2166 drafting Unclear meaning of “undefined constexpr function” Not resolved
2167 CD4 Non-member references with lifetimes within the current evaluation Unknown
2168 open Narrowing conversions and +/- infinity Not resolved
2169 open Narrowing conversions and overload resolution Not resolved
2170 CD5 Unclear definition of odr-use for arrays Clang 9
2171 CD4 Triviality of copy constructor with less-qualified parameter Clang 15
2172 drafting Multiple exceptions with one exception object Not resolved
2173 open Partial specialization with non-deduced contexts Not resolved
2174 C++17 Unclear rules for friend definitions in templates Unknown
2175 CD4 Ambiguity with attribute in conversion operator declaration Unknown
2176 CD4 Destroying the returned object when a destructor throws Unknown
2177 CD5 Placement operator delete and parameter copies Unknown
2178 NAD Substitution of dependent template arguments in default template arguments Unknown
2179 drafting Required diagnostic for partial specialization after first use Not resolved
2180 CD4 Virtual bases in destructors and defaulted assignment operators Yes
2181 C++20 Normative requirements in an informative Annex Unknown
2182 drafting Pointer arithmetic in array-like containers Not resolved
2183 NAD Problems in description of potential exceptions Unknown
2184 CD4 Missing C compatibility entry for decrement of bool Unknown
2185 CD6 Cv-qualified numeric types Unknown
2186 drafting Unclear point that “preceding initialization” must precede Not resolved
2187 drafting Protected members and access via qualified-id Not resolved
2188 open empty-declaration grammar ambiguity Not resolved
2189 open Surrogate call template Not resolved
2190 open Insufficient specification of __has_include Not resolved
2191 C++17 Incorrect result for noexcept(typeid(v)) Clang 19
2192 open Constant expressions and order-of-eval undefined behavior Not resolved
2193 NAD numeric_limits<int>::radix and digits Unknown
2194 drafting Impossible case in list initialization Not resolved
2195 open Unsolicited reading of trailing volatile members Not resolved
2196 C++17 Zero-initialization with virtual base classes Unknown
2197 C++17 Overload resolution and deleted special member functions Unknown
2198 C++17 Linkage of enumerators Unknown
2199 CD6 Typedefs and tags Clang 3.8
2200 NAD Conversions in template argument deduction Unknown
2201 C++17 Cv-qualification of array types Unknown
2202 drafting When does default argument instantiation occur? Not resolved
2203 drafting Defaulted copy/move constructors and UDCs Not resolved
2204 NAD Naming delegated constructors Unknown
2205 C++17 Restrictions on use of alignas Unknown
2206 C++17 Composite type of object and function pointers Unknown
2207 CD5 Alignment of allocation function return value Unknown
2208 NAD static_assert-declaration does not declare a member Unknown
2209 NAD Destruction of constructed array elements Unknown
2210 NAD Principal/target constructor confusion Unknown
2211 C++17 Hiding by lambda captures and parameters Clang 8
2212 CD5 Typedef changing linkage after use Unknown
2213 CD6 Forward declaration of partial specializations Yes
2214 C++17 Missing requirement on representation of integer values Unknown
2215 C++17 Redundant description of language linkage in function call Unknown
2216 NAD Exception specifications in unevaluated contexts Unknown
2217 NAD constexpr constructors for non-literal types Unknown
2218 C++17 Ambiguity and namespace aliases Unknown
2219 drafting Dynamically-unreachable handlers Not resolved
2220 C++17 Hiding index variable in range-based for Unknown
2221 CD6 Copying volatile objects Unknown
2222 drafting Additional contexts where instantiation is not required Not resolved
2223 drafting Multiple alignas specifiers Not resolved
2224 C++17 Member subobjects and base-class casts Unknown
2225 NAD reinterpret_cast to same floating-point type Unknown
2226 CD5 Xvalues vs lvalues in conditional expressions Unknown
2227 CD5 Destructor access and default member initializers Unknown
2228 open Ambiguity resolution for cast to function type Not resolved
2229 CD5 Volatile unnamed bit-fields Clang 7
2230 NAD Linkage of extern "C" function in unnamed namespace Unknown
2231 NAD Class member access to static data member template Unknown
2232 open thread_local anonymous unions Not resolved
2233 CD5 Function parameter packs following default arguments Clang 11
2234 CD5 Missing rules for simple-template-id as class-name Unknown
2235 CD5 Partial ordering and non-dependent types Unknown
2236 drafting When is an alias template specialization dependent? Not resolved
2237 CD5 Can a template-id name a constructor? Unknown
2238 NAD Contradictory alignment requirements for allocation Unknown
2239 NAD Sized deallocation with a trivial destructor Unknown
2240 NAD this is not odr-used in a constant expression Unknown
2241 CD5 Overload resolution is not invoked with a single function Unknown
2242 C++23 ODR violation with constant initialization possibly omitted Unknown
2243 drafting Incorrect use of implicit conversion sequence Not resolved
2244 open Base class access in aggregate initialization Not resolved
2245 drafting Point of instantiation of incomplete class template Not resolved
2246 drafting Access of indirect virtual base class constructors Not resolved
2247 C++17 Lambda capture and variable argument list Unknown
2248 C++17 Problems with sized delete Unknown
2249 CD5 identifiers and id-expressions Unknown
2250 open Implicit instantiation, destruction, and TUs Not resolved
2251 C++17 Unreachable enumeration list-initialization Unknown
2252 DRWP Enumeration list-initialization from the same type Unknown
2253 CD5 Unnamed bit-fields and zero-initialization Unknown
2254 CD5 Standard-layout classes and bit-fields Unknown
2255 CD5 Instantiated static data member templates Unknown
2256 CD5 Lifetime of trivially-destructible objects Unknown
2257 CD5 Lifetime extension of references vs exceptions Unknown
2258 open Storage deallocation during period of destruction Not resolved
2259 C++17 Unclear context describing ambiguity Unknown
2260 CD5 Explicit specializations of deleted member functions Unknown
2261 extension Explicit instantiation of in-class friend definition Extension
2262 C++17 Attributes for asm-definition Unknown
2263 drafting Default argument instantiation for friends Not resolved
2264 drafting Memberwise copying with indeterminate value Not resolved
2265 drafting Delayed pack expansion and member redeclarations Not resolved
2266 CD5 Has dependent type vs is type-dependent Unknown
2267 CD5 Copy-initialization of temporary in reference direct-initialization No
2268 C++17 Unions with mutable members in constant expressions revisited Unknown
2269 dup Additional recursive references in aggregate DMIs Unknown
2270 NAD Non-inline functions and explicit instantiation declarations Unknown
2271 C++17 Aliasing this Unknown
2272 C++17 Implicit initialization of aggregate members of reference type Unknown
2273 CD5 Inheriting constructors vs implicit default constructor Clang 3.3
2274 NAD Generic lambda capture vs constexpr if Unknown
2275 drafting Type-dependence of function template Not resolved
2276 C++17 Dependent noexcept and function type-dependence Unknown
2277 CD5 Ambiguity inheriting constructors with default arguments Partial
2278 CD5 Copy elision in constant expressions reconsidered Unknown
2279 NAD Multiple attribute-specifiers in one attribute-list Unknown
2280 C++20 Matching a usual deallocation function with placement new Unknown
2281 drafting Consistency of aligned operator delete replacement Not resolved
2282 C++20 Consistency with mismatched aligned/non-over-aligned allocation/deallocation functions Unknown
2283 drafting Missing complete type requirements Not resolved
2284 open Sequencing of braced-init-list arguments Not resolved
2285 CD5 Issues with structured bindings Unknown
2286 NAD Assignment evaluation order Unknown
2287 CD5 Pointer-interconvertibility in non-standard-layout unions Unknown
2288 NAD Contradictory optionality in simple-declaration Unknown
2289 CD5 Uniqueness of structured binding names Unknown
2290 CD5 Unclear specification for overload resolution and deleted special member functions Unknown
2291 dup Implicit conversion sequences in non-call contexts Unknown
2292 CD5 simple-template-id is ambiguous between class-name and type-name Clang 9
2293 CD5 Requirements for simple-template-id used as a class-name Unknown
2294 CD5 Dependent auto static data members Unknown
2295 CD5 Aggregates with deleted defaulted constructors Unknown
2296 open Are default argument instantiation failures in the “immediate context”? Not resolved
2297 open Unclear specification of atomic operations Not resolved
2298 open Actions and expression evaluation Not resolved
2299 CD5 constexpr vararg functions Unknown
2300 CD5 Lambdas in multiple definitions Unknown
2301 open Value-initialization and constexpr constructor evaluation Not resolved
2302 NAD Address comparison between different member subobjects Unknown
2303 CD5 Partial ordering and recursive variadic inheritance Clang 12
2304 NAD Incomplete type vs overload resolution Clang 2.8
2305 CD5 Explicit instantiation of constexpr or inline variable template Unknown
2306 NAD Nested friend templates of class templates Unknown
2307 CD5 Unclear definition of “equivalent to a nontype template parameter” Unknown
2308 NAD Structured bindings and lambda capture Unknown
2309 CD5 Restrictions on nested statements within constexpr functions Unknown
2310 CD5 Type completeness and derived-to-base pointer conversions Partial
2311 open Missed case for guaranteed copy elision Not resolved
2312 CD6 Structured bindings and mutable Unknown
2313 CD5 Redeclaration of structured binding reference variables Unknown
2314 dup Structured bindings and lambda capture Unknown
2315 CD5 What is the “corresponding special member” of a variant member? Unknown
2316 drafting Simplifying class conversions in conditional expressions Not resolved
2317 CD5 Self-referential default member initializers Unknown
2318 CD5 Nondeduced contexts in deduction from a braced-init-list Unknown
2319 drafting Nested brace initialization from same type Not resolved
2320 extension constexpr if and boolean conversions Extension
2321 CD5 Conditional operator and cv-qualified class prvalues Unknown
2322 CD5 Substitution failure and lexical order Unknown
2323 C++20 Expunge POD Unknown
2324 drafting Size of base class subobject Not resolved
2325 drafting std::launder and reuse of character buffers Not resolved
2326 dup Type deduction with initializer list containing ambiguous functions Unknown
2327 drafting Copy elision for direct-initialization with a conversion function Not resolved
2328 drafting Unclear presentation style of template argument deduction rules Not resolved
2329 drafting Virtual base classes and generated assignment operators Not resolved
2330 CD5 Missing references to variable templates Unknown
2331 CD6 Redundancy in description of class scope N/A
2332 CD5 template-name as simple-type-name vs injected-class-name Unknown
2333 CD6 Escape sequences in UTF-8 character literals Unknown
2334 open Creation of objects by typeid Not resolved
2335 drafting Deduced return types vs member types Not Resolved*
2336 CD5 Destructor characteristics vs potentially-constructed subobjects Unknown
2337 open Incorrect implication of logic ladder for conversion sequence tiebreakers Not resolved
2338 CD5 Undefined behavior converting to short enums with fixed underlying types Clang 12
2339 CD5 Underspecified template arguments in structured bindings Unknown
2340 open Reference collapsing and structured bindings Not resolved
2341 CD5 Structured bindings with static storage duration Unknown
2342 CD5 Reference reinterpret_cast and pointer-interconvertibility Unknown
2343 C++20 void* non-type template parameters Unknown
2344 NAD Redeclaration of names in init-statements Unknown
2345 CD5 Jumping across initializers in init-statements and conditions Unknown
2346 CD5 Local variables in default arguments Clang 11
2347 C++20 Passing short scoped enumerations to ellipsis Unknown
2348 NAD Non-templated constexpr if Unknown
2349 NAD Class/enumeration names vs conditions Unknown
2350 NAD Forwarding references and deduction guides Unknown
2351 CD5 void{} Unknown
2352 CD5 Similar types and reference binding Clang 10
2353 CD5 Potential results of a member access expression for a static data member Clang 9
2354 CD5 Extended alignment and object representation Clang 15
2355 CD6 Deducing noexcept-specifiers Unknown
2356 CD5 Base class copy and move constructors should not be inherited Clang 4
2357 NAD Lookup in member function declarations Unknown
2358 CD5 Explicit capture of value Clang 16
2359 CD5 Unintended copy initialization with designated initializers Unknown
2360 CD5 [[maybe_unused]] and structured bindings Unknown
2361 open Unclear description of longjmp undefined behavior Not resolved
2362 open __func__ should be constexpr Not resolved
2363 NAD Opaque enumeration friend declarations Yes
2364 NAD Constant expressions, aggregate initialization, and modifications Unknown
2365 CD5 Confusing specification for dynamic_cast Unknown
2366 CD5 Can default initialization be constant initialization? Unknown
2367 NAD Lambdas in default arguments vs the ODR Unknown
2368 CD5 Differences in relational and three-way constant comparisons Unknown
2369 CD6 Ordering between constraints and substitution Unknown
2370 CD6 friend declarations of namespace-scope functions No
2371 CD5 Use of the English term “attributes” is confusing Unknown
2372 CD5 Incorrect matching rules for block-scope extern declarations Unknown
2373 CD5 Incorrect handling of static member function templates in partial ordering Unknown
2374 C++20 Overly permissive specification of enum direct-list-initialization Unknown
2375 NAD Multiple redeclarations of constexpr static data members Unknown
2376 CD5 Class template argument deduction with array declarator Unknown
2377 NAD Explicit copy constructor vs function viability Unknown
2378 C++20 Inconsistent grammar for reference init-capture of pack Unknown
2379 CD5 Missing prohibition against constexpr in friend declaration Unknown
2380 CD5 capture-default makes too many references odr-usable Unknown
2381 CD5 Composite pointer type of pointers to plain and noexcept member functions Unknown
2382 CD5 Array allocation overhead for non-allocating placement new Unknown
2383 NAD Variadic member functions of variadic class templates Unknown
2384 CD5 Conversion function templates and qualification conversions Unknown
2385 CD5 Lookup for conversion-function-ids N/A
2386 CD5 tuple_size requirements for structured binding Clang 9
2387 CD5 Linkage of const-qualified variable template Clang 9
2388 NAD Applicability of contract-attribute-specifiers Unknown
2389 CD6 Agreement of deduced and explicitly-specified variable types Unknown
2390 CD5 Is the argument of __has_cpp_attribute macro-expanded? Clang 14
2391 dup Additional template parameters following pack expansion Unknown
2392 C++23 new-expression size check and constant evaluation Unknown
2393 NAD Pseudo-destructors and object lifetime Unknown
2394 CD5 Const-default-constructible for members Clang 15
2395 drafting Parameters following a pack expansion Not resolved
2396 CD6 Lookup of names in complex conversion-type-ids No
2397 CD6 auto specifier for pointers and references to arrays Clang 17
2398 drafting Template template parameter matching and deduction Not resolved
2399 CD5 Unclear referent of “expression” in assignment-expression Unknown
2400 CD5 Constexpr virtual functions and temporary objects Unknown
2401 drafting Array decay vs prohibition of subobject non-type arguments Not resolved
2402 CD6 When is the restriction to a single c-char in a Unicode literal enforced? Unknown
2403 drafting Temporary materialization and base/member initialization Not resolved
2404 CD5 [[no_unique_address]] and allocation order Unknown
2405 CD6 Additional type-dependent expressions Unknown
2406 CD5 [[fallthrough]] attribute and iteration statements Clang 5
2407 C++23 Missing entry in Annex C for defaulted comparison operators Unknown
2408 NAD Temporaries and previously-initialized elements in aggregate initialization Unknown
2409 drafting Explicit specializations of constexpr static data members Not resolved
2410 C++23 Implicit calls of immediate functions Unknown
2411 C++20 Comparison of pointers to members in template non-type arguments Unknown
2412 review SFINAE vs undeduced placeholder type Not resolved
2413 CD6 typename in conversion-function-ids Unknown
2414 C++20 Unclear results if both member and friend operator<=> are declared Unknown
2415 NAD using-declarations vs copy assignment operators Unknown
2416 C++20 Explicit specializations vs constexpr and consteval Unknown
2417 open Explicit instantiation and exception specifications Not resolved
2418 CD5 Missing cases in definition of “usable in constant expressions” Unknown
2419 C++20 Loss of generality treating pointers to objects as one-element arrays Unknown
2420 dup Exception specifications in explicit instantiation Unknown
2421 drafting Explicit instantiation of constrained member functions Not resolved
2422 C++20 Incorrect grammar for deduction-guide Unknown
2423 NAD Typedefs, names, and entities Unknown
2424 C++20 constexpr initialization requirements for variant members Unknown
2425 open Confusing wording for deduction from a type Not resolved
2426 C++20 Reference to destructor that cannot be invoked Unknown
2427 C++20 Deprecation of volatile operands and unevaluated contexts Unknown
2428 C++23 Deprecating a concept Clang 19
2429 C++20 Initialization of thread_local variables referenced by lambdas Unknown
2430 C++20 Completeness of return and parameter types of member functions Clang 2.7
2431 C++20 Full-expressions and temporaries bound to references Unknown
2432 C++20 Return types for defaulted <=> Unknown
2433 C++20 Variable templates in the ODR Unknown
2434 review Mandatory copy elision vs non-class objects Not resolved
2435 open Alias template specializations Not resolved
2436 C++20 Copy semantics of coroutine parameters Unknown
2437 C++20 Conversion of std::strong_ordering in a defaulted operator<=> Unknown
2438 open Problems in the specification of qualification conversions Not resolved
2439 C++20 Undefined term in definition of “usable in constant expressions” Unknown
2440 C++23 Allocation in core constant expressions Unknown
2441 C++20 Inline function parameters Unknown
2442 C++20 Incorrect requirement for default arguments Unknown
2443 C++23 Meaningless template exports Unknown
2444 drafting Constant expressions in initialization odr-use Not resolved
2445 C++20 Partial ordering with rewritten candidates Clang 19
2446 C++20 Questionable type-dependency of concept-ids Unknown
2447 C++20 Unintended description of abbreviated function templates Unknown
2448 CD6 Cv-qualification of arithmetic types and deprecation of volatile Unknown
2449 extension Thunks as an implementation technique for pointers to virtual functions Extension
2450 DRWP braced-init-list as a template-argument Clang 18
2451 C++23 promise.unhandled_exception() and final suspend point Unknown
2452 CD6 Flowing off the end of a coroutine Unknown
2453 NAD Deduced return types and coroutine lambdas Unknown
2454 NAD Tail recursion and coroutine symmetric transfer Unknown
2455 CD6 Concatenation of string literals vs translation phases 5 and 6 Unknown
2456 open Viable user-defined conversions in converted constant expressions Not resolved
2457 CD6 Unexpanded parameter packs don't make a function type dependent Unknown
2458 CD6 Value category of expressions denoting non-static member functions Unknown
2459 DRWP Template parameter initialization Clang 18
2460 CD6 C language linkage and constrained non-template friends Unknown
2461 CD6 Diagnosing non-bool type constraints Unknown
2462 drafting Problems with the omission of the typename keyword Not resolved
2463 open Trivial copyability and unions with non-trivial members Not resolved
2464 CD6 Constexpr launder and unions Unknown
2465 CD6 Coroutine parameters passed to a promise constructor Unknown
2466 CD6 co_await should be a single evaluation Unknown
2467 drafting CTAD for alias templates and the deducible check Not resolved
2468 drafting Omission of the typename keyword in a member template parameter list Not resolved
2469 drafting Implicit object creation vs constant expressions Not resolved
2470 CD6 Multiple array objects providing storage for one object Unknown
2471 drafting Nested class template argument deduction Not resolved
2472 NAD Value categories in await-expressions Unknown
2473 drafting Parentheses in pseudo-destructor calls Not resolved
2474 CD6 Cv-qualification and deletion Unknown
2475 C++23 Object declarations of type cv void Unknown
2476 DR placeholder-type-specifiers and function declarators Unknown
2477 CD6 Defaulted vs deleted copy constructors/assignment operators Unknown
2478 C++23 Properties of explicit specializations of implicitly-instantiated class templates Unknown
2479 CD6 Missing specifications for consteval and constinit Unknown
2480 drafting Lookup for enumerators in modules Not resolved
2481 CD6 Cv-qualification of temporary to which a reference is bound Unknown
2482 CD6 bit_cast and indeterminate values Unknown
2483 C++23 Language linkage of static member functions Unknown
2484 CD6 char8_t and char16_t in integral promotions Unknown
2485 DRWP Bit-fields in integral promotions Unknown
2486 CD6 Call to noexcept function via noexcept(false) pointer/lvalue Unknown
2487 drafting Type dependence of function-style cast to incomplete array type Not resolved
2488 open Overloading virtual functions and functions with trailing requires-clauses Not resolved
2489 C++23 Storage provided by array of char Unknown
2490 CD6 Restrictions on destruction in constant expressions Unknown
2491 CD6 Export of typedef after its first declaration Unknown
2492 drafting Comparing user-defined conversion sequences in list-initialization Not resolved
2493 dup auto as a conversion-type-id Unknown
2494 CD6 Multiple definitions of non-odr-used entities Unknown
2495 open Glvalue result of a function call Not resolved
2496 CD6 ref-qualifiers and virtual overriding Unknown
2497 drafting Points of instantiation for constexpr function templates Not resolved
2498 open Partial specialization failure and the immediate context Not resolved
2499 CD6 Inconsistency in definition of pointer-interconvertibility Unknown
2500 extension noexcept(false) functions and noexcept expressions Extension
2501 drafting Explicit instantiation and trailing requires-clauses Not resolved
2502 CD6 Unintended declaration conflicts in nested statement scopes Unknown
2503 drafting Unclear relationship among name, qualified name, and unqualified name Not resolved
2504 DRWP Inheriting constructors from virtual base classes No
2505 drafting Nested unnamed namespace of inline unnamed namespace Not resolved
2506 CD6 Structured bindings and array cv-qualifiers Unknown
2507 CD6 Default arguments for operator[] Unknown
2508 C++23 Restrictions on uses of template parameter names Unknown
2509 CD6 decl-specifier-seq in lambda-specifiers Unknown
2510 NAD noexcept-specifier of friend function vs class completeness Unknown
2511 CD6 cv-qualified bit-fields Unknown
2512 NAD typeid and incomplete class types Clang 2.7
2513 open Ambiguity with requires-clause and operator-function-id Not resolved
2514 open Modifying const subobjects Not resolved
2515 open Result of a function call Not resolved
2516 C++23 Locus of enum-specifier or opaque-enum-declaration Clang 3.0
2517 C++23 Useless restriction on use of parameter in constraint-expression Unknown
2518 C++23 Conformance requirements and #error/#warning Clang 17
2519 DRWP Object representation of a bit-field Unknown
2520 C++23 Template signature and default template arguments Unknown
2521 C++23 User-defined literals and reserved identifiers Clang 17
2522 open Removing placemarker tokens and retention of whitespace Not resolved
2523 C++23 Undefined behavior via omitted destructor call in constant expressions Unknown
2524 NAD Distinguishing user-defined conversion sequences by ref-qualifier Unknown
2525 drafting Incorrect definition of implicit conversion sequence Not resolved
2526 C++23 Relational comparison of void* pointers Unknown
2527 NAD Non-class potentially-overlapping objects Unknown
2528 C++23 Three-way comparison and the usual arithmetic conversions Unknown
2529 C++23 Constant destruction of constexpr references Unknown
2530 C++23 Multiple definitions of enumerators Unknown
2531 DRWP Static data members redeclared as constexpr Unknown
2532 open Kind of pointer value returned by new T[0] Not resolved
2533 DR Storage duration of implicitly created objects Unknown
2534 CD6 Value category of pseudo-destructor expression Unknown
2535 CD6 Type punning in class member access Unknown
2536 open Partially initialized variables during constant initialization Not resolved
2537 drafting Overbroad grammar for parameter-declaration Not resolved
2538 C++23 Can standard attributes be syntactically ignored? Unknown
2539 C++23 Three-way comparison requiring strong ordering for floating-point types Unknown
2540 CD6 Unspecified interpretation of numeric-escape-sequence Unknown
2541 open Linkage specifications, module purview, and module attachment Not resolved
2542 DRWP Is a closure type a structural type? Unknown
2543 C++23 constinit and optimized dynamic initialization Unknown
2544 open Address of past-the-end of a potentially-overlapping subobject Not resolved
2545 open Transparently replacing objects in constant expressions Not resolved
2546 DR Defaulted secondary comparison operators defined as deleted Unknown
2547 DR Defaulted comparison operator function for non-classes Unknown
2548 NAD Array prvalues and additive operators Unknown
2549 review Implicitly moving the operand of a throw-expression in unevaluated contexts Not resolved
2550 DRWP Type "reference to cv void" outside of a declarator Unknown
2551 review "Refers to allocated storage" has no meaning Not resolved
2552 DRWP Constant evaluation of non-defining variable declarations Unknown
2553 review Restrictions on explicit object member functions Not Resolved*
2554 review Overriding virtual functions, also with explicit object parameters Not Resolved*
2555 drafting Ineffective redeclaration prevention for using-declarators Not resolved
2556 DRWP Unusable promise::return_void Unknown
2557 drafting Class member access referring to an unrelated class Not resolved
2558 C++23 Uninitialized subobjects as a result of an immediate invocation Unknown
2559 open Defaulted consteval functions Not resolved
2560 DR Parameter type determination in a requirement-parameter-list Unknown
2561 tentatively ready Conversion to function pointer for lambda with explicit object parameter Not Resolved*
2562 open Exceptions thrown during coroutine startup Not resolved
2563 drafting Initialization of coroutine result object Not resolved
2564 drafting Conversion to function pointer with an explicit object parameter Not resolved
2565 open Invalid types in the parameter-declaration-clause of a requires-expression Not Resolved*
2566 review Matching deallocation for uncaught exception Not resolved
2567 NAD Operator lookup ambiguity Unknown
2568 DR Access checking during synthesis of defaulted comparison operator Unknown
2569 CD6 Use of decltype(capture) in a lambda's parameter-declaration-clause Unknown
2570 DRWP Clarify constexpr for defaulted functions Unknown
2571 CD6 Evaluation order for subscripting Unknown
2572 review Address of overloaded function with no target Not resolved
2573 DRWP Undefined behavior when splicing results in a universal-character-name Unknown
2574 DRWP Undefined behavior when lexing unmatched quotes Unknown
2575 open Undefined behavior when macro-replacing "defined" operator Not resolved
2576 open Undefined behavior with macro-expanded #include directives Not resolved
2577 open Undefined behavior for preprocessing directives in macro arguments Not resolved
2578 open Undefined behavior when creating an invalid string literal via stringizing Not resolved
2579 open Undefined behavior when token pasting does not create a preprocessing token Not resolved
2580 open Undefined behavior with #line Not resolved
2581 open Undefined behavior for predefined macros Not resolved
2582 CD6 Differing member lookup from nested classes Unknown
2583 C++23 Common initial sequence should consider over-alignment Clang 19
2584 open Equivalent types in function template declarations Not resolved
2585 CD6 Name lookup for coroutine allocation Unknown
2586 CD6 Explicit object parameter for assignment and comparison Unknown
2587 review Visible side effects and initial value of an object Not resolved
2588 tentatively ready friend declarations and module linkage Not resolved
2589 review Context of access checks during constraint satisfaction checking Not resolved
2590 C++23 Underlying type should determine size and alignment requirements of an enum Unknown
2591 DRWP Implicit change of active union member for anonymous union in union Unknown
2592 open Missing definition for placement allocation/deallocation function Not resolved
2593 review Insufficient base class restriction for pointer-to-member expression Not resolved
2594 CD6 Disallowing a global function template main Unknown
2595 DRWP "More constrained" for eligible special member functions Unknown
2596 drafting Instantiation of constrained non-template friends Not resolved
2597 CD6 Replaceable allocation and deallocation functions in the global module Unknown
2598 C++23 Unions should not require a non-static data member of literal type Clang 18
2599 C++23 What does initializing a parameter include? Unknown
2600 DRWP Type dependency of placeholder types Unknown
2601 C++23 Tracking of created and destroyed subobjects Unknown
2602 C++23 consteval defaulted functions Unknown
2603 C++23 Holistic functional equivalence for function templates Unknown
2604 C++23 Attributes for an explicit specialization Unknown
2605 C++23 Implicit-lifetime aggregates Unknown
2606 CD6 static_cast from "pointer to void" does not handle similar types Unknown
2607 drafting Visibility of enumerator names Not resolved
2608 CD6 Omitting an empty template argument list Unknown
2609 open Padding in class types Not resolved
2610 C++23 Indirect private base classes in aggregates Unknown
2611 C++23 Missing parentheses in expansion of fold-expression could cause syntactic reinterpretation Unknown
2612 C++23 Incorrect comment in example Unknown
2613 C++23 Incomplete definition of resumer Unknown
2614 C++23 Unspecified results for class member access Unknown
2615 C++23 Missing __has_cpp_attribute(assume) Unknown
2616 C++23 Imprecise restrictions on break and continue Unknown
2617 review Default template arguments for template members of non-template classes Not resolved
2618 C++23 Substitution during deduction should exclude exception specifications Unknown
2619 C++23 Kind of initialization for a designated-initializer-list Unknown
2620 C++23 Nonsensical disambiguation rule Unknown
2621 C++23 Kind of lookup for using enum declarations Clang 16
2622 C++23 Compounding types from function and pointer-to-member types Unknown
2623 drafting Invoking destroying operator delete for constructor failure Not resolved
2624 C++23 Array delete expression with no array cookie Unknown
2625 C++23 Deletion of pointer to out-of-lifetime object Unknown
2626 C++23 Rephrase ones' complement using base-2 representation Unknown
2627 C++23 Bit-fields and narrowing conversions Unknown
2628 DRWP Implicit deduction guides should propagate constraints No
2629 C++23 Variables of floating-point type as switch conditions Unknown
2630 C++23 Syntactic specification of class completeness Clang 9
2631 C++23 Immediate function evaluations in default arguments Clang 16
2632 drafting 'user-declared' is not defined Not resolved
2633 open typeid of constexpr-unknown dynamic type Not resolved
2634 DR Avoid circularity in specification of scope for friend class declarations Unknown
2635 C++23 Constrained structured bindings Clang 16
2636 C++23 Update Annex E based on Unicode 15.0 UAX #31 N/A
2637 DR Injected-class-name as a simple-template-id Unknown
2638 DR Improve the example for initializing by initializer list Unknown
2639 C++23 new-lines after phase 1 Unknown
2640 C++23 Allow more characters in an n-char sequence Clang 16
2641 C++23 Redundant specification of value category of literals Unknown
2642 C++23 Inconsistent use of T and C N/A
2643 C++23 Completing a pointer to array of unknown bound Unknown
2644 C++23 Incorrect comment in example Clang 8
2645 C++23 Unused term "default argument promotions" Unknown
2646 C++23 Defaulted special member functions Unknown
2647 C++23 Fix for "needed for constant evaluation" Unknown
2648 C++23 Correspondence of surrogate call function and conversion function Unknown
2649 C++23 Incorrect note about implicit conversion sequence Unknown
2650 C++23 Incorrect example for ill-formed non-type template arguments Clang 17
2651 C++23 Conversion function templates and "noexcept" Unknown
2652 C++23 Overbroad definition of __STDCPP_BFLOAT16_T__ Unknown
2653 C++23 Can an explicit object parameter have a default argument? Clang 18
2654 C++23 Un-deprecation of compound volatile assignments Clang 16
2655 NAD Instantiation of default arguments in lambda-expressions Unknown
2656 drafting Converting consteval lambda to function pointer in non-immediate context Not resolved
2657 DR Cv-qualification adjustment when binding reference to temporary Unknown
2658 C++23 Trivial copying of unions in core constant expressions Unknown
2659 C++23 Missing feature-test macro for lifetime extension in range-for loop Unknown
2660 open Confusing term "this parameter" Not resolved
2661 DR Missing disambiguation rule for pure-specifier vs. brace-or-equal-initializer Unknown
2662 C++23 Example for member access control vs. overload resolution Unknown
2663 DRWP Example for member redeclarations with using-declarations Unknown
2664 C++23 Deduction failure in CTAD for alias templates Unknown
2665 NAD Replacing a subobject with a complete object Unknown
2666 open Lifetime extension through static_cast Not resolved
2667 C++23 Named module imports do not import macros Unknown
2668 DR co_await in a lambda-expression Unknown
2669 open Lifetime extension for aggregate initialization Not resolved
2670 open Programs and translation units Not resolved
2671 open friend named by a template-id Not resolved
2672 DRWP Lambda body SFINAE is still required, contrary to intent and note Clang 18
2673 C++23 User-declared spaceship vs. built-in operators Unknown
2674 C++23 Prohibit explicit object parameters for constructors Unknown
2675 open start_lifetime_as, placement-new, and active union members Not resolved
2676 open Replacing a complete object having base subobjects Not resolved
2677 review Replacing union subobjects Not resolved
2678 C++23 std::source_location::current is unimplementable Unknown
2679 open Implicit conversion sequence with a null pointer constant Not resolved
2680 open Class template argument deduction for aggregates with designated initializers Not resolved
2681 C++23 Deducing member array type from string literal Clang 17
2682 C++23 Templated function vs. function template Unknown
2683 DRWP Default arguments for member functions of templated nested classes Unknown
2684 open thread_local dynamic initialization Not resolved
2685 C++23 Aggregate CTAD, string, and brace elision Unknown
2686 open Pack expansion into a non-pack parameter of a concept Not resolved
2687 C++23 Calling an explicit object member function via an address-of-overload-set Clang 18
2688 open Calling explicit object member functions Not resolved
2689 DR Are cv-qualified std::nullptr_t fundamental types? Unknown
2690 C++23 Semantics of defaulted move assignment operator for unions Unknown
2691 C++23 hexadecimal-escape-sequence is too greedy Unknown
2692 C++23 Static and explicit object member functions with the same parameter-type-lists Clang 19
2693 open Escape sequences for the string-literal of #line Not resolved
2694 open string-literals of the _Pragma operator Not resolved
2695 C++23 Semantic ignorability of attributes Unknown
2696 dup Relational comparisons of pointers to void Unknown
2697 DRWP Deduction guides using abbreviated function syntax Unknown
2698 DRWP Using extended integer types with z suffix Unknown
2699 DRWP Inconsistency of throw-expression specification Unknown
2700 DR #error disallows existing implementation practice Unknown
2701 open Default arguments in multiple scopes / inheritance of array bounds in the same scope Not resolved
2702 open Constant destruction of reference members Not resolved
2703 review Three-way comparison requiring strong ordering for floating-point types, take 2 Not resolved
2704 open Clarify meaning of "bind directly" Not resolved
2705 open Accessing ambiguous subobjects Not resolved
2706 open Repeated structured binding declarations Not resolved
2707 DR Deduction guides cannot have a trailing requires-clause Unknown
2708 DRWP Parenthesized initialization of arrays Unknown
2709 NAD Parenthesized initialization of reference-to-aggregate Unknown
2710 DRWP Loops in constant expressions Unknown
2711 DRWP Source for copy-initializing the exception object Unknown
2712 DRWP Simplify restrictions on built-in assignment operator candidates Unknown
2713 DRWP Initialization of reference-to-aggregate from designated initializer list Unknown
2714 DR Implicit deduction guides omit properties from the parameter-declaration-clause of a constructor Unknown
2715 DRWP "calling function" for parameter initialization may not exist Unknown
2716 DRWP Rule about self-or-base conversion is normatively redundant Unknown
2717 DRWP Pack expansion for alignment-specifier Unknown
2718 DRWP Type completeness for derived-to-base conversions Clang 2.7
2719 DRWP Creating objects in misaligned storage Unknown
2720 DRWP Template validity rules for templated entities and alias templates Unknown
2721 DRWP When exactly is storage reused? Unknown
2722 DRWP Temporary materialization conversion for noexcept operator Unknown
2723 DRWP Range of representable values for floating-point types Unknown
2724 DRWP Clarify rounding for arithmetic right shift Unknown
2725 DRWP Overload resolution for non-call of class member access Unknown
2726 review Alternative tokens appearing as attribute-tokens Not resolved
2727 open Importing header units synthesized from source files Not resolved
2728 tentatively ready Evaluation of conversions in a delete-expression Not resolved
2729 DRWP Meaning of new-type-id Unknown
2730 open Comparison templates on enumeration types Not resolved
2731 open List-initialization sequence with a user-defined conversion Not resolved
2732 DRWP Can importable headers react to preprocessor state from point of import? Unknown
2733 DRWP Applying [[maybe_unused]] to a label Unknown
2734 open Immediate forward-declared function templates Not resolved
2735 open List-initialization and conversions in overload resolution Not resolved
2736 open Standard layout class with empty base class also in first member Not resolved
2737 review Temporary lifetime extension for reference init-captures Not resolved
2738 review "denotes a destructor" is missing specification Not resolved
2739 open Nested requirement not a constant expression Not resolved
2740 open Too many objects have constexpr-unknown type Not resolved
2741 open Implicit conversion sequence from empty list to array of unknown bound Not resolved
2742 drafting Guaranteed copy elision for brace-initialization from prvalue Not resolved
2743 open Copying non-trivial objects nested within a union Not resolved
2744 open Multiple objects of the same type at the same address Not resolved
2745 DR Dependent odr-use in generic lambdas Unknown
2746 DR Checking of default template arguments Unknown
2747 DRWP Cannot depend on an already-deleted splice Unknown
2748 DR Accessing static data members via null pointer Unknown
2749 DRWP Treatment of "pointer to void" for relational comparisons Unknown
2750 DRWP construct_at without constructor call Unknown
2751 NAD Order of destruction for parameters for operator functions Unknown
2752 open Excess-precision floating-point literals Not resolved
2753 DRWP Storage reuse for string literal objects and backing arrays Unknown
2754 DRWP Using *this in explicit object member functions that are coroutines Unknown
2755 DRWP Incorrect wording applied by P2738R1 Unknown
2756 review Completion of initialization by delegating constructor Not resolved
2757 review Deleting or deallocating storage of an object during its construction Not resolved
2758 DRWP What is "access and ambiguity control"? Unknown
2759 DRWP [[no_unique_address] and common initial sequence Clang 19
2760 DRWP Defaulted constructor that is an immediate function Unknown
2761 DRWP Implicitly invoking the deleted destructor of an anonymous union member Unknown
2762 DRWP Type of implicit object parameter Unknown
2763 DRWP Ignorability of [[noreturn]] during constant evaluation Unknown
2764 DRWP Use of placeholders affecting name mangling Unknown
2765 open Address comparisons between potentially non-unique objects during constant evaluation Not resolved
2766 open Repeated evaluation of a string-literal may yield different objects Not resolved
2767 open Non-defining declarations of anonymous unions Not resolved
2768 DRWP Assignment to enumeration variable with a braced-init-list Unknown
2769 open Substitution into template parameters and default template arguments should be interleaved Not resolved
2770 open Trailing requires-clause can refer to function parameters before they are substituted into Not resolved
2771 DR Transformation for unqualified-ids in address operator Clang 18
2772 DRWP Missing Annex C entry for linkage effects of linkage-specification Unknown
2773 open Naming anonymous union members as class members Not resolved
2774 open Value-dependence of requires-expressions Not resolved
2775 DR Unclear argument type for copy of exception object Unknown
2776 open Substitution failure and implementation limits Not resolved
2777 DR Type of id-expression denoting a template parameter object Unknown
2778 review Trivial destructor does not imply constant destruction Not resolved
2779 open Restrictions on the ordinary literal encoding Not resolved
2780 DRWP reinterpret_cast to reference to function types Unknown
2781 open Unclear recursion in the one-definition rule Not resolved
2782 open Treatment of closure types in the one-definition rule Not resolved
2783 DRWP Handling of deduction guides in global-module-fragment Unknown
2784 open Unclear definition of member-designator for offsetof Not resolved
2785 DRWP Type-dependence of requires-expression Unknown
2786 open Comparing pointers to complete objects Not resolved
2787 open Kind of explicit object copy/move assignment function Not resolved
2788 open Correspondence and redeclarations Not resolved
2789 DRWP Overload resolution with implicit and explicit object member functions Clang 18
2790 open Aggregate initialization and user-defined conversion sequence Not resolved
2791 DRWP Unclear phrasing about "returning to the caller" Unknown
2792 DRWP Clean up specification of noexcept operator Unknown
2793 DRWP Block-scope declaration conflicting with parameter name Unknown
2794 open Uniqueness of lambdas in alias templates Not resolved
2795 DRWP Overlapping empty subobjects with different cv-qualification Unknown
2796 DRWP Function pointer conversions for relational operators Unknown
2797 review Meaning of "corresponds" for rewritten operator candidates Not resolved
2798 DRWP Manifestly constant evaluation of the static_assert message Clang 17
2799 drafting Inheriting default constructors Not resolved
2800 review Instantiating constexpr variables for potential constant evaluation Not resolved
2801 DRWP Reference binding with reference-related types Unknown
2802 open Constrained auto and redeclaration with non-abbreviated syntax Not resolved
2803 DR Overload resolution for reference binding of similar types Unknown
2804 open Lookup for determining rewrite targets Not resolved
2805 open Underspecified selection of deallocation function Not resolved
2806 DRWP Make a type-requirement a type-only context Unknown
2807 DRWP Destructors declared consteval Unknown
2808 review Explicit specialization of defaulted special member function Not resolved
2809 DR An implicit definition does not redeclare a function Unknown
2810 DR Requiring the absence of diagnostics for templates Unknown
2811 DR Clarify "use" of main Unknown
2812 open Allocation with explicit alignment Not resolved
2813 DR Class member access with prvalues Unknown
2814 tentatively ready Alignment requirement of incomplete class type Not resolved
2815 open Overload resolution for references/pointers to noexcept functions Not resolved
2816 review Unclear phrasing "may assume ... eventually" Not resolved
2817 open sizeof(abstract class) is underspecified Not resolved
2818 tentatively ready Use of predefined reserved identifiers Not resolved
2819 tentatively ready Cast from null pointer value in a constant expression Not Resolved*
2820 DR Value-initialization and default constructors Unknown
2821 review Lifetime, zero-initialization, and dynamic initialization Not resolved
2822 DR Side-effect-free pointer zap Unknown
2823 DRWP Implicit undefined behavior when dereferencing pointers Unknown
2824 DR Copy-initialization of arrays Unknown
2825 DR Range-based for statement using a braced-init-list Unknown
2826 drafting Missing definition of "temporary expression" Not resolved
2827 review Representation of unsigned integral types Not resolved
2828 DR Ambiguous interpretation of C-style cast Unknown
2829 open Redundant case in restricting user-defined conversion sequences Not resolved
2830 DR Top-level cv-qualification should be ignored for list-initialization Unknown
2831 DR Non-templated function definitions and requires-clauses Unknown
2832 open Invented temporary variables and temporary objects Not resolved
2833 review Evaluation of odr-use Not resolved
2834 review Partial ordering and explicit object parameters Not resolved
2835 open Name-independent declarations Not resolved
2836 tentatively ready Conversion rank of long double and extended floating-point types Not resolved
2837 open Instantiating and inheriting by-value copy constructors Not resolved
2838 open Declaration conflicts in lambda-expressions Not resolved
2839 open Explicit destruction of base classes Not resolved
2840 open Missing requirements for fundamental alignments Not resolved
2841 open When do const objects start being const? Not resolved
2842 open Preferring an initializer_list over a single value Not resolved
2843 review Undated reference to Unicode makes C++ a moving target Not resolved
2844 open Enumerating a finite set of built-in candidates Not resolved
2845 DR Make the closure type of a captureless lambda a structural type Unknown
2846 DR Out-of-class definitions of explicit object member functions Unknown
2847 review Constrained explicit specializations of function templates at class scope Not Resolved*
2848 DR Omitting an empty template argument list for explicit instantiation Unknown
2849 DR Parameter objects are not temporary objects Unknown
2850 DR Unclear storage duration for function parameter objects Unknown
2851 DR Allow floating-point conversions in converted constant expressions Unknown
2852 open Complete-class contexts and class-scope lambdas Not resolved
2853 DR Pointer arithmetic with pointer to hypothetical element Unknown
2854 DR Storage duration of exception objects Unknown
2855 DR Undefined behavior in postfix increment Unknown
2856 DR Copy-list-initialization with explicit default constructors Unknown
2857 DR Argument-dependent lookup with incomplete class types No
2858 tentatively ready Declarative nested-name-specifiers and pack-index-specifiers Not Resolved*
2859 tentatively ready Value-initialization with multiple default constructors Not resolved
2860 dup Remove and fix the term "vacuous initialization" Unknown
2861 tentatively ready dynamic_cast on bad pointer value Not resolved
2862 tentatively ready Unclear boundaries of template declarations Not resolved
2863 drafting Unclear synchronization requirements for object lifetime rules Not resolved
2864 tentatively ready Narrowing floating-point conversions Not resolved
2865 tentatively ready Regression on result of conditional operator Not resolved
2866 open Observing the effects of [[no_unique_address]] Not resolved
2867 review Order of initialization for structured bindings Not resolved
2868 open Self-references in trivially copyable objects as function return values Not resolved
2869 tentatively ready this in local classes Not resolved
2870 tentatively ready Combining absent encoding-prefixes Not resolved
2871 tentatively ready User-declared constructor templates inhibiting default constructors Not resolved
2872 tentatively ready Linkage and unclear "can be referred to" Not resolved
2873 open Taking the address of a function involving template argument deduction Not resolved
2874 tentatively ready Qualified declarations of partial specializations Not resolved
2875 tentatively ready Missing support for round-tripping null pointer values through indirection/address operators Not resolved
2876 tentatively ready Disambiguation of T x = delete("text") Not resolved
2877 tentatively ready Type-only lookup for using-enum-declarator Not Resolved*
2878 open C-style casts to reference types Not resolved
2879 drafting Undesired outcomes with const_cast Not resolved
2880 open Accessibility check for destructor of incomplete class type Not resolved
2881 tentatively ready Type restrictions for the explicit object parameter of a lambda Not Resolved*
2882 tentatively ready Unclear treatment of conversion to void Not Resolved*
2883 tentatively ready Definition of "odr-usable" ignores lambda scopes Not Resolved*
2884 dup Qualified declarations of partial specializations Unknown
2885 tentatively ready Non-eligible trivial default constructors Not Resolved*
2886 tentatively ready Temporaries and trivial potentially-throwing special member functions Not Resolved*
2887 tentatively ready Missing compatibility entries for xvalues Not resolved
2888 review Missing cases for reference and array types for argument-dependent lookup Not resolved
2889 open Requiring an accessible destructor for destroying operator delete Not resolved
2890 review Defining members of local classes Not resolved
2891 tentatively ready Normative status of implementation limits Not resolved
2892 tentatively ready Unclear usual arithmetic conversions Not resolved
2893 NAD Instantiations in discarded if constexpr substatements Unknown
2894 review Functional casts create prvalues of reference type Not resolved
2895 tentatively ready Initialization should ignore the destination type's cv-qualification Not resolved
2896 review Template argument deduction involving exception specifications Not resolved
2897 open Copying potentially-overlapping union subobjects Not resolved
2898 open Clarify implicit conversion sequence from cv T to T Not resolved
2899 open Bad value representations should cause undefined behavior Not resolved
2900 open Deduction of non-type template arguments with placeholder types Not resolved
2901 open Unclear semantics for near-match aliased access Not resolved
2902 review Implicit this transformation outside of permitted contexts Not resolved
2903 tentatively ready Can we omit the template disambiguator in nested-name-specifiers in type-only contexts? Not resolved