diff --git a/libc/utils/CPP/CMakeLists.txt b/libc/utils/CPP/CMakeLists.txt --- a/libc/utils/CPP/CMakeLists.txt +++ b/libc/utils/CPP/CMakeLists.txt @@ -7,4 +7,5 @@ Functional.h StringView.h TypeTraits.h + Limits.h ) diff --git a/libc/utils/CPP/Limits.h b/libc/utils/CPP/Limits.h new file mode 100644 --- /dev/null +++ b/libc/utils/CPP/Limits.h @@ -0,0 +1,57 @@ +//===-- A self contained equivalent of std::limits --------------*- C++ -*-===// +// +// 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_LIBC_UTILS_CPP_LIMITS_H +#define LLVM_LIBC_UTILS_CPP_LIMITS_H + +namespace __llvm_libc { +namespace cpp { + +#include + +template class numeric_limits { +public: + static T max(); + static T min(); +}; + +template <> class numeric_limits { +public: + static int max() { return INT_MAX; } + static int min() { return INT_MIN; } +}; +template <> class numeric_limits { +public: + static unsigned int max() { return UINT_MAX; } + static unsigned int min() { return 0; } +}; +template <> class numeric_limits { +public: + static long max() { return LONG_MAX; } + static long min() { return LONG_MIN; } +}; +template <> class numeric_limits { +public: + static long max() { return ULONG_MAX; } + static long min() { return 0; } +}; +template <> class numeric_limits { +public: + static long long max() { return LLONG_MAX; } + static long long min() { return LLONG_MIN; } +}; +template <> class numeric_limits { +public: + static long max() { return ULLONG_MAX; } + static long min() { return 0; } +}; + +} // namespace cpp +} // namespace __llvm_libc + +#endif // LLVM_LIBC_UTILS_CPP_LIMITS_H