[clang-tools-extra] [clang-tidy] readability check to convert numerical constants to std::numeric_limits (PR #167148)

[via cfe-commits]

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@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_NUMERICLIMITMAXCHECKCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_NUMERICLIMITMAXCHECKCHECK_H
+
+#include "../ClangTidyCheck.h"
+#include "../utils/IncludeInserter.h"
+
+namespace clang::tidy::readability {
+
+/// Suggest replacement of values like -1 / `~0` (when used as unsigned)
+/// with std::numeric_limits<T>::max() for unsigned integer types.
+class NumericlimitmaxcheckCheck : public ClangTidyCheck {
+public:
+  NumericlimitmaxcheckCheck(StringRef Name, ClangTidyContext *Context);
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override;
+
+  void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpander) override;
+  void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
+
+private:
+  utils::IncludeInserter Inserter;
+};
+
+} // namespace clang::tidy::readability
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_NUMERICLIMITMAXCHECKCHECK_H
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EugeneZelenko wrote:

Please add newline.

https://github.com/llvm/llvm-project/pull/167148