forked from OSchip/llvm-project
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
//===-- A self contained equivalent of std::limits --------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_UTILS_CPP_LIMITS_H
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#define LLVM_LIBC_UTILS_CPP_LIMITS_H
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#include <limits.h>
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namespace __llvm_libc {
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namespace cpp {
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template <class T> class NumericLimits {
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public:
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static constexpr T max();
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static constexpr T min();
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};
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// TODO: Add NumericLimits specializations as needed for new types.
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template <> class NumericLimits<int> {
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public:
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static constexpr int max() { return INT_MAX; }
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static constexpr int min() { return INT_MIN; }
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};
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template <> class NumericLimits<unsigned int> {
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public:
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static constexpr unsigned int max() { return UINT_MAX; }
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static constexpr unsigned int min() { return 0; }
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};
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template <> class NumericLimits<long> {
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public:
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static constexpr long max() { return LONG_MAX; }
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static constexpr long min() { return LONG_MIN; }
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};
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template <> class NumericLimits<unsigned long> {
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public:
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static constexpr unsigned long max() { return ULONG_MAX; }
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static constexpr unsigned long min() { return 0; }
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};
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template <> class NumericLimits<long long> {
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public:
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static constexpr long long max() { return LLONG_MAX; }
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static constexpr long long min() { return LLONG_MIN; }
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};
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template <> class NumericLimits<unsigned long long> {
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public:
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static constexpr unsigned long long max() { return ULLONG_MAX; }
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static constexpr unsigned long long min() { return 0; }
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};
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} // namespace cpp
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} // namespace __llvm_libc
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#endif // LLVM_LIBC_UTILS_CPP_LIMITS_H
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