1 //===--- LimitedRandomnessCheck.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_CERT_LIMITED_RANDOMNESS_H 10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_LIMITED_RANDOMNESS_H 11 12 #include "../ClangTidyCheck.h" 13 14 namespace clang { 15 namespace tidy { 16 namespace cert { 17 18 /// Pseudorandom number generators are not genuinely random. The result of the 19 /// std::rand() function makes no guarantees as to the quality of the random 20 /// sequence produced. 21 /// This check warns for the usage of std::rand() function. 22 /// 23 /// For the user-facing documentation see: 24 /// http://clang.llvm.org/extra/clang-tidy/checks/cert-msc50-cpp.html 25 class LimitedRandomnessCheck : public ClangTidyCheck { 26 public: LimitedRandomnessCheck(StringRef Name,ClangTidyContext * Context)27 LimitedRandomnessCheck(StringRef Name, ClangTidyContext *Context) 28 : ClangTidyCheck(Name, Context) {} 29 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 30 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 31 }; 32 33 } // namespace cert 34 } // namespace tidy 35 } // namespace clang 36 37 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_LIMITED_RANDOMNESS_H 38