1//===--- MisplacedWideningCastCheck.h - clang-tidy---------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_MISPLACEDWIDENINGCASTCHECK_H
10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_MISPLACEDWIDENINGCASTCHECK_H
11
12#include "../ClangTidyCheck.h"
13
14namespace clang::tidy::bugprone {
15
16/// Find casts of calculation results to bigger type. Typically from int to
17/// long. If the intention of the cast is to avoid loss of precision then
18/// the cast is misplaced, and there can be loss of precision. Otherwise
19/// such cast is ineffective.
20///
21/// There is one option:
22///
23/// - `CheckImplicitCasts`: Whether to check implicit casts as well which may
24// be the most common case. Enabled by default.
25///
26/// For the user-facing documentation see:
27/// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/misplaced-widening-cast.html
28class MisplacedWideningCastCheck : public ClangTidyCheck {
29public:
30 MisplacedWideningCastCheck(StringRef Name, ClangTidyContext *Context);
31 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
32 void registerMatchers(ast_matchers::MatchFinder *Finder) override;
33 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
34
35private:
36 const bool CheckImplicitCasts;
37};
38
39} // namespace clang::tidy::bugprone
40
41#endif
42

source code of clang-tools-extra/clang-tidy/bugprone/MisplacedWideningCastCheck.h