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