1 //===--- TypePromotionInMathFnCheck.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_PERFORMANCE_TYPE_PROMOTION_IN_MATH_FN_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_TYPE_PROMOTION_IN_MATH_FN_H
11 
12 #include "../ClangTidyCheck.h"
13 #include "../utils/IncludeInserter.h"
14 
15 namespace clang {
16 namespace tidy {
17 namespace performance {
18 
19 /// Finds calls to C math library functions with implicit float to double
20 /// promotions.
21 ///
22 /// For example, warns on ::sin(0.f), because this funciton's parameter is a
23 /// double.  You probably meant to call std::sin(0.f) (in C++), or sinf(0.f) (in
24 /// C).
25 ///
26 /// For the user-facing documentation see:
27 /// http://clang.llvm.org/extra/clang-tidy/checks/performance-type-promotion-in-math-fn.html
28 class TypePromotionInMathFnCheck : public ClangTidyCheck {
29 public:
30   TypePromotionInMathFnCheck(StringRef Name, ClangTidyContext *Context);
31 
32   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
33                            Preprocessor *ModuleExpanderPP) override;
34   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
35   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
36   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
37 
38 private:
39   utils::IncludeInserter IncludeInserter;
40 };
41 
42 } // namespace performance
43 } // namespace tidy
44 } // namespace clang
45 
46 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_TYPE_PROMOTION_IN_MATH_FN_H
47