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llvm-project
clang-tools-extra
clang-tidy
bugprone
TooSmallLoopVariableCheck.h
Go to the documentation of this file.
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//===--- TooSmallLoopVariableCheck.h - clang-tidy ---------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_TOOSMALLLOOPVARIABLECHECK_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_TOOSMALLLOOPVARIABLECHECK_H
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#include "../ClangTidyCheck.h"
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namespace
clang::tidy::bugprone
{
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/// This check gives a warning if a loop variable has a too small type which
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/// might not be able to represent all values which are part of the whole range
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/// in which the loop iterates.
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/// If the loop variable's type is too small we might end up in an infinite
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/// loop. Example:
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/// \code
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/// long size = 294967296l;
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/// for (short i = 0; i < size; ++i) {} { ... }
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/// \endcode
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///
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/// For the user-facing documentation see:
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/// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/too-small-loop-variable.html
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class
TooSmallLoopVariableCheck
:
public
ClangTidyCheck
{
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public
:
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TooSmallLoopVariableCheck
(StringRef
Name
,
ClangTidyContext
*Context);
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void
storeOptions
(
ClangTidyOptions::OptionMap
&Opts)
override
;
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void
registerMatchers
(ast_matchers::MatchFinder *Finder)
override
;
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void
check
(
const
ast_matchers::MatchFinder::MatchResult &Result)
override
;
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private
:
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const
unsigned
MagnitudeBitsUpperLimit;
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};
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}
// namespace clang::tidy::bugprone
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#endif
// LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_TOOSMALLLOOPVARIABLECHECK_H
Name
llvm::SmallString< 256U > Name
Definition:
ChainedComparisonCheck.cpp:42
clang::tidy::ClangTidyCheck
Base class for all clang-tidy checks.
Definition:
ClangTidyCheck.h:53
clang::tidy::ClangTidyContext
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
Definition:
ClangTidyDiagnosticConsumer.h:69
clang::tidy::bugprone::TooSmallLoopVariableCheck
This check gives a warning if a loop variable has a too small type which might not be able to represe...
Definition:
TooSmallLoopVariableCheck.h:28
clang::tidy::bugprone::TooSmallLoopVariableCheck::registerMatchers
void registerMatchers(ast_matchers::MatchFinder *Finder) override
The matcher for loops with suspicious integer loop variable.
Definition:
TooSmallLoopVariableCheck.cpp:69
clang::tidy::bugprone::TooSmallLoopVariableCheck::storeOptions
void storeOptions(ClangTidyOptions::OptionMap &Opts) override
Should store all options supported by this check with their current values or default values for opti...
Definition:
TooSmallLoopVariableCheck.cpp:51
clang::tidy::bugprone::TooSmallLoopVariableCheck::check
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
Definition:
TooSmallLoopVariableCheck.cpp:185
clang::tidy::bugprone
Definition:
ArgumentCommentCheck.cpp:19
clang::tidy::ClangTidyOptions::OptionMap
llvm::StringMap< ClangTidyValue > OptionMap
Definition:
ClangTidyOptions.h:126
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