135 lines
3.2 KiB
C++
135 lines
3.2 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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 _LIBCPP_EXT_HASH
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#define _LIBCPP_EXT_HASH
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# pragma GCC system_header
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#include <__config>
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#include <cstring>
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#include <string>
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namespace __gnu_cxx {
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template <typename _Tp> struct _LIBCPP_TEMPLATE_VIS hash { };
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template <> struct _LIBCPP_TEMPLATE_VIS hash<const char*>
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: public std::__unary_function<const char*, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(const char *__c) const _NOEXCEPT
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{
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return std::__do_string_hash(__c, __c + strlen(__c));
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<char *>
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: public std::__unary_function<char*, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(char *__c) const _NOEXCEPT
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{
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return std::__do_string_hash<const char *>(__c, __c + strlen(__c));
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<char>
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: public std::__unary_function<char, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(char __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<signed char>
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: public std::__unary_function<signed char, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(signed char __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<unsigned char>
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: public std::__unary_function<unsigned char, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(unsigned char __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<short>
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: public std::__unary_function<short, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(short __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<unsigned short>
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: public std::__unary_function<unsigned short, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(unsigned short __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<int>
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: public std::__unary_function<int, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(int __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<unsigned int>
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: public std::__unary_function<unsigned int, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(unsigned int __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<long>
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: public std::__unary_function<long, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(long __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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template <> struct _LIBCPP_TEMPLATE_VIS hash<unsigned long>
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: public std::__unary_function<unsigned long, size_t>
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{
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_LIBCPP_INLINE_VISIBILITY
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size_t operator()(unsigned long __c) const _NOEXCEPT
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{
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return __c;
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}
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};
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} // namespace __gnu_cxx
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#endif // _LIBCPP_EXT_HASH
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