clang-tidy/cert/LimitedRandomnessCheck.h

0001 //===--- LimitedRandomnessCheck.h - clang-tidy-------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_LIMITED_RANDOMNESS_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_LIMITED_RANDOMNESS_H
0011
0012 #include "../ClangTidyCheck.h"
0013
0014 namespace clang::tidy::cert {
0015
0016 /// Pseudorandom number generators are not genuinely random. The result of the
0017 /// std::rand() function makes no guarantees as to the quality of the random
0018 /// sequence produced.
0019 /// This check warns for the usage of std::rand() function.
0020 ///
0021 /// For the user-facing documentation see:
0022 /// http://clang.llvm.org/extra/clang-tidy/checks/cert/msc50-cpp.html
0023 class LimitedRandomnessCheck : public ClangTidyCheck {
0024 public:
0025   LimitedRandomnessCheck(StringRef Name, ClangTidyContext *Context)
0026       : ClangTidyCheck(Name, Context) {}
0027   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0028   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0029 };
0030
0031 } // namespace clang::tidy::cert
0032
0033 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_LIMITED_RANDOMNESS_H