1// std::tr1::hash definitions with new string -*- C++ -*- 2 3// Copyright (C) 2014-2022 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 3, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// Under Section 7 of GPL version 3, you are granted additional 17// permissions described in the GCC Runtime Library Exception, version 18// 3.1, as published by the Free Software Foundation. 19 20// You should have received a copy of the GNU General Public License and 21// a copy of the GCC Runtime Library Exception along with this program; 22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23// <http://www.gnu.org/licenses/>. 24 25#define _GLIBCXX_USE_CXX11_ABI 1 26#include <string> 27 28#if ! _GLIBCXX_USE_DUAL_ABI 29# error This file should not be compiled for this configuration. 30#endif 31 32#include <tr1/functional> 33namespace std _GLIBCXX_VISIBILITY(default) 34{ 35 namespace tr1 36 { 37 template<> 38 size_t 39 hash<string>::operator()(string __s) const 40 { return _Fnv_hash::hash(__s.data(), __s.length()); } 41 42 template<> 43 size_t 44 hash<const string&>::operator()(const string& __s) const 45 { return _Fnv_hash::hash(__s.data(), __s.length()); } 46 47#ifdef _GLIBCXX_USE_WCHAR_T 48 template<> 49 size_t 50 hash<wstring>::operator()(wstring __s) const 51 { return _Fnv_hash::hash(__s.data(), __s.length() * sizeof(wchar_t)); } 52 53 template<> 54 size_t 55 hash<const wstring&>::operator()(const wstring& __s) const 56 { return _Fnv_hash::hash(__s.data(), __s.length() * sizeof(wchar_t)); } 57#endif 58 } 59} 60