1*38fd1498Szrj // Debugging support implementation -*- C++ -*- 2*38fd1498Szrj 3*38fd1498Szrj // Copyright (C) 2015-2018 Free Software Foundation, Inc. 4*38fd1498Szrj // 5*38fd1498Szrj // This file is part of the GNU ISO C++ Library. This library is free 6*38fd1498Szrj // software; you can redistribute it and/or modify it under the 7*38fd1498Szrj // terms of the GNU General Public License as published by the 8*38fd1498Szrj // Free Software Foundation; either version 3, or (at your option) 9*38fd1498Szrj // any later version. 10*38fd1498Szrj 11*38fd1498Szrj // This library is distributed in the hope that it will be useful, 12*38fd1498Szrj // but WITHOUT ANY WARRANTY; without even the implied warranty of 13*38fd1498Szrj // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*38fd1498Szrj // GNU General Public License for more details. 15*38fd1498Szrj 16*38fd1498Szrj // Under Section 7 of GPL version 3, you are granted additional 17*38fd1498Szrj // permissions described in the GCC Runtime Library Exception, version 18*38fd1498Szrj // 3.1, as published by the Free Software Foundation. 19*38fd1498Szrj 20*38fd1498Szrj // You should have received a copy of the GNU General Public License and 21*38fd1498Szrj // a copy of the GCC Runtime Library Exception along with this program; 22*38fd1498Szrj // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23*38fd1498Szrj // <http://www.gnu.org/licenses/>. 24*38fd1498Szrj 25*38fd1498Szrj /** @file debug/stl_iterator.h 26*38fd1498Szrj * This file is a GNU debug extension to the Standard C++ Library. 27*38fd1498Szrj */ 28*38fd1498Szrj 29*38fd1498Szrj #ifndef _GLIBCXX_DEBUG_STL_ITERATOR_H 30*38fd1498Szrj #define _GLIBCXX_DEBUG_STL_ITERATOR_H 1 31*38fd1498Szrj 32*38fd1498Szrj #include <debug/helper_functions.h> 33*38fd1498Szrj 34*38fd1498Szrj namespace __gnu_debug 35*38fd1498Szrj { 36*38fd1498Szrj // Help Debug mode to see through reverse_iterator. 37*38fd1498Szrj template<typename _Iterator> 38*38fd1498Szrj inline bool __valid_range(const std::reverse_iterator<_Iterator> & __first,const std::reverse_iterator<_Iterator> & __last,typename _Distance_traits<_Iterator>::__type & __dist)39*38fd1498Szrj __valid_range(const std::reverse_iterator<_Iterator>& __first, 40*38fd1498Szrj const std::reverse_iterator<_Iterator>& __last, 41*38fd1498Szrj typename _Distance_traits<_Iterator>::__type& __dist) 42*38fd1498Szrj { return __valid_range(__last.base(), __first.base(), __dist); } 43*38fd1498Szrj 44*38fd1498Szrj template<typename _Iterator> 45*38fd1498Szrj inline typename _Distance_traits<_Iterator>::__type __get_distance(const std::reverse_iterator<_Iterator> & __first,const std::reverse_iterator<_Iterator> & __last)46*38fd1498Szrj __get_distance(const std::reverse_iterator<_Iterator>& __first, 47*38fd1498Szrj const std::reverse_iterator<_Iterator>& __last) 48*38fd1498Szrj { return __get_distance(__last.base(), __first.base()); } 49*38fd1498Szrj 50*38fd1498Szrj #if __cplusplus < 201103L 51*38fd1498Szrj template<typename _Iterator> 52*38fd1498Szrj struct __is_safe_random_iterator<std::reverse_iterator<_Iterator> > 53*38fd1498Szrj : __is_safe_random_iterator<_Iterator> 54*38fd1498Szrj { }; 55*38fd1498Szrj 56*38fd1498Szrj template<typename _Iterator> 57*38fd1498Szrj struct _Unsafe_type<std::reverse_iterator<_Iterator> > 58*38fd1498Szrj { 59*38fd1498Szrj typedef typename _Unsafe_type<_Iterator>::_Type _UnsafeType; 60*38fd1498Szrj typedef std::reverse_iterator<_UnsafeType> _Type; 61*38fd1498Szrj }; 62*38fd1498Szrj 63*38fd1498Szrj template<typename _Iterator> 64*38fd1498Szrj inline std::reverse_iterator<typename _Unsafe_type<_Iterator>::_Type> 65*38fd1498Szrj __unsafe(const std::reverse_iterator<_Iterator>& __it) 66*38fd1498Szrj { 67*38fd1498Szrj typedef typename _Unsafe_type<_Iterator>::_Type _UnsafeType; 68*38fd1498Szrj return std::reverse_iterator<_UnsafeType>(__unsafe(__it.base())); 69*38fd1498Szrj } 70*38fd1498Szrj #else 71*38fd1498Szrj template<typename _Iterator> 72*38fd1498Szrj inline auto 73*38fd1498Szrj __base(const std::reverse_iterator<_Iterator>& __it) 74*38fd1498Szrj -> decltype(std::__make_reverse_iterator(__base(__it.base()))) 75*38fd1498Szrj { return std::__make_reverse_iterator(__base(__it.base())); } 76*38fd1498Szrj 77*38fd1498Szrj template<typename _Iterator> 78*38fd1498Szrj inline auto 79*38fd1498Szrj __unsafe(const std::reverse_iterator<_Iterator>& __it) 80*38fd1498Szrj -> decltype(std::__make_reverse_iterator(__unsafe(__it.base()))) 81*38fd1498Szrj { return std::__make_reverse_iterator(__unsafe(__it.base())); } 82*38fd1498Szrj #endif 83*38fd1498Szrj 84*38fd1498Szrj #if __cplusplus >= 201103L 85*38fd1498Szrj // Help Debug mode to see through move_iterator. 86*38fd1498Szrj template<typename _Iterator> 87*38fd1498Szrj inline bool 88*38fd1498Szrj __valid_range(const std::move_iterator<_Iterator>& __first, 89*38fd1498Szrj const std::move_iterator<_Iterator>& __last, 90*38fd1498Szrj typename _Distance_traits<_Iterator>::__type& __dist) 91*38fd1498Szrj { return __valid_range(__first.base(), __last.base(), __dist); } 92*38fd1498Szrj 93*38fd1498Szrj template<typename _Iterator> 94*38fd1498Szrj inline typename _Distance_traits<_Iterator>::__type 95*38fd1498Szrj __get_distance(const std::move_iterator<_Iterator>& __first, 96*38fd1498Szrj const std::move_iterator<_Iterator>& __last) 97*38fd1498Szrj { return __get_distance(__first.base(), __last.base()); } 98*38fd1498Szrj 99*38fd1498Szrj template<typename _Iterator> 100*38fd1498Szrj inline auto 101*38fd1498Szrj __unsafe(const std::move_iterator<_Iterator>& __it) 102*38fd1498Szrj -> decltype(std::make_move_iterator(__unsafe(__it.base()))) 103*38fd1498Szrj { return std::make_move_iterator(__unsafe(__it.base())); } 104*38fd1498Szrj 105*38fd1498Szrj template<typename _Iterator> 106*38fd1498Szrj inline auto 107*38fd1498Szrj __base(const std::move_iterator<_Iterator>& __it) 108*38fd1498Szrj -> decltype(std::make_move_iterator(__base(__it.base()))) 109*38fd1498Szrj { return std::make_move_iterator(__base(__it.base())); } 110*38fd1498Szrj #endif 111*38fd1498Szrj } 112*38fd1498Szrj 113*38fd1498Szrj #endif 114