1 // class template tuple -*- C++ -*- 2 3 // Copyright (C) 2004, 2005 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 2, 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 // You should have received a copy of the GNU General Public License along 17 // with this library; see the file COPYING. If not, write to the Free 18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19 // USA. 20 21 // As a special exception, you may use this file as part of a free software 22 // library without restriction. Specifically, if other files instantiate 23 // templates or use macros or inline functions from this file, or you compile 24 // this file and link it with other files to produce an executable, this 25 // file does not by itself cause the resulting executable to be covered by 26 // the GNU General Public License. This exception does not however 27 // invalidate any other reasons why the executable file might be covered by 28 // the GNU General Public License. 29 30 /** @file tr1/tuple_defs.h 31 * This is an internal header file, included by other library headers. 32 * You should not attempt to use it directly. 33 */ 34 35 #ifndef _GLIBCXX_REPEAT_HEADER 36 # define _GLIBCXX_REPEAT_HEADER "tuple_defs.h" 37 # include "repeat.h" 38 # undef _GLIBCXX_REPEAT_HEADER 39 #endif 40 41 #ifdef _GLIBCXX_LAST_INCLUDE 42 // Chris Jefferson <chris@bubblescope.net> 43 template<_GLIBCXX_TEMPLATE_PARAMS_NULL_CLASS> class tuple; 44 45 // Returns a const reference to the ith element of a tuple. 46 // Any const or non-const ref elements are returned with their original type. 47 template<int __i, _GLIBCXX_TEMPLATE_PARAMS> 48 typename __add_ref<typename tuple_element<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::type>::type get(tuple<_GLIBCXX_TEMPLATE_ARGS> & __t)49 get(tuple<_GLIBCXX_TEMPLATE_ARGS>& __t) 50 { 51 return __get_helper<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::get_value(__t); 52 } 53 54 template<int __i, _GLIBCXX_TEMPLATE_PARAMS> 55 typename __add_c_ref<typename tuple_element<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::type>::type get(const tuple<_GLIBCXX_TEMPLATE_ARGS> & __t)56 get(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t) 57 { 58 return __get_helper<__i, tuple<_GLIBCXX_TEMPLATE_ARGS> >::get_value(__t); 59 } 60 61 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U> 62 bool 63 operator==(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t, 64 const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u) 65 { 66 typedef tuple<_GLIBCXX_TEMPLATE_ARGS> _Tp; 67 typedef tuple<_GLIBCXX_TEMPLATE_ARGS_U> _Up; 68 return __tuple_compare<tuple_size<_Tp>::value - tuple_size<_Tp>::value, 0, 69 tuple_size<_Tp>::value, _Tp, _Up>::__eq(__t, __u); 70 } 71 72 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U> 73 bool 74 operator<(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t, 75 const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u) 76 { 77 typedef tuple<_GLIBCXX_TEMPLATE_ARGS> _Tp; 78 typedef tuple<_GLIBCXX_TEMPLATE_ARGS_U> _Up; 79 return __tuple_compare<tuple_size<_Tp>::value - tuple_size<_Tp>::value, 0, 80 tuple_size<_Tp>::value, _Tp, _Up>::__less(__t, __u); 81 } 82 83 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U> 84 bool 85 operator!=(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t, 86 const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u) 87 { return !(__t == __u); } 88 89 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U> 90 bool 91 operator>(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t, 92 const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u) 93 { return __u < __t; } 94 95 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U> 96 bool 97 operator<=(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t, 98 const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u) 99 { return !(__u < __t); } 100 101 template<_GLIBCXX_TEMPLATE_PARAMS, _GLIBCXX_TEMPLATE_PARAMS_U> 102 bool 103 operator>=(const tuple<_GLIBCXX_TEMPLATE_ARGS>& __t, 104 const tuple<_GLIBCXX_TEMPLATE_ARGS_U>& __u) 105 { return !(__t < __u); } 106 107 template<_GLIBCXX_TEMPLATE_PARAMS_NULL_CLASS> 108 struct __stripped_tuple_type 109 { 110 typedef tuple<_GLIBCXX_TEMPLATE_ARGS_STRIPPED> __type; 111 }; 112 113 #endif 114 115