clang-tools-extra/clang-tidy/performance/TypePromotionInMathFnCheck.h

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