codekingpro/portable-devtools

1// -*- C++ -*-2//===------------------------- hash_set ------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCUDACXX_EXT_HASH11#define _LIBCUDACXX_EXT_HASH12 13#pragma GCC system_header14 15#include <string>16#include <cstring>17 18namespace __gnu_cxx {19 20template <typename _Tp> struct _LIBCUDACXX_TEMPLATE_VIS hash { };21 22template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<const char*>23 : public std::__unary_function<const char*, size_t>24{25    _LIBCUDACXX_INLINE_VISIBILITY26    size_t operator()(const char *__c) const noexcept27    {28        return std::__do_string_hash(__c, __c + strlen(__c));29    }30};31 32template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<char *>33 : public std::__unary_function<char*, size_t>34{35    _LIBCUDACXX_INLINE_VISIBILITY36    size_t operator()(char *__c) const noexcept37    {38        return std::__do_string_hash<const char *>(__c, __c + strlen(__c));39    }40};41 42template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<char>43 : public std::__unary_function<char, size_t>44{45    _LIBCUDACXX_INLINE_VISIBILITY46    size_t operator()(char __c) const noexcept47    {48        return __c;49    }50};51 52template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<signed char>53 : public std::__unary_function<signed char, size_t>54{55    _LIBCUDACXX_INLINE_VISIBILITY56    size_t operator()(signed char __c) const noexcept57    {58        return __c;59    }60};61 62template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<unsigned char>63 : public std::__unary_function<unsigned char, size_t>64{65    _LIBCUDACXX_INLINE_VISIBILITY66    size_t operator()(unsigned char __c) const noexcept67    {68        return __c;69    }70};71 72template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<short>73 : public std::__unary_function<short, size_t>74{75    _LIBCUDACXX_INLINE_VISIBILITY76    size_t operator()(short __c) const noexcept77    {78        return __c;79    }80};81 82template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<unsigned short>83 : public std::__unary_function<unsigned short, size_t>84{85    _LIBCUDACXX_INLINE_VISIBILITY86    size_t operator()(unsigned short __c) const noexcept87    {88        return __c;89    }90};91 92template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<int>93    : public std::__unary_function<int, size_t>94{95    _LIBCUDACXX_INLINE_VISIBILITY96    size_t operator()(int __c) const noexcept97    {98        return __c;99    }100};101 102template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<unsigned int>103    : public std::__unary_function<unsigned int, size_t>104{105    _LIBCUDACXX_INLINE_VISIBILITY106    size_t operator()(unsigned int __c) const noexcept107    {108        return __c;109    }110};111 112template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<long>113    : public std::__unary_function<long, size_t>114{115    _LIBCUDACXX_INLINE_VISIBILITY116    size_t operator()(long __c) const noexcept117    {118        return __c;119    }120};121 122template <> struct _LIBCUDACXX_TEMPLATE_VIS hash<unsigned long>123    : public std::__unary_function<unsigned long, size_t>124{125    _LIBCUDACXX_INLINE_VISIBILITY126    size_t operator()(unsigned long __c) const noexcept127    {128        return __c;129    }130};131}132 133#endif  // _LIBCUDACXX_EXT_HASH134