1// functional_hash.h header -*- C++ -*- 2 3// Copyright (C) 2007, 2009 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/** @file bits/functional_hash.h 26 * This is an internal header file, included by other library headers. 27 * You should not attempt to use it directly. 28 */ 29 30#ifndef _FUNCTIONAL_HASH_H 31#define _FUNCTIONAL_HASH_H 1 32 33#pragma GCC system_header 34 35#ifndef __GXX_EXPERIMENTAL_CXX0X__ 36# include <c++0x_warning.h> 37#endif 38 39#if defined(_GLIBCXX_INCLUDE_AS_TR1) 40# error C++0x header cannot be included from TR1 header 41#endif 42 43#if defined(_GLIBCXX_INCLUDE_AS_CXX0X) 44# include <tr1_impl/functional_hash.h> 45#else 46# define _GLIBCXX_INCLUDE_AS_CXX0X 47# define _GLIBCXX_BEGIN_NAMESPACE_TR1 48# define _GLIBCXX_END_NAMESPACE_TR1 49# define _GLIBCXX_TR1 50# include <tr1_impl/functional_hash.h> 51# undef _GLIBCXX_TR1 52# undef _GLIBCXX_END_NAMESPACE_TR1 53# undef _GLIBCXX_BEGIN_NAMESPACE_TR1 54# undef _GLIBCXX_INCLUDE_AS_CXX0X 55#endif 56 57 58namespace std 59{ 60 struct error_code; 61 62 template<> 63 size_t 64 hash<error_code>::operator()(error_code) const; 65} 66 67#endif // _FUNCTIONAL_HASH_H 68 69