1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <iterator> 11 12// reverse_iterator 13 14// Test nested types and data member: 15 16// template <BidirectionalIterator Iter> 17// class reverse_iterator { 18// protected: 19// Iter current; 20// public: 21// iterator<typename iterator_traits<Iterator>::iterator_category, 22// typename iterator_traits<Iterator>::value_type, 23// typename iterator_traits<Iterator>::difference_type, 24// typename iterator_traits<Iterator>::pointer, 25// typename iterator_traits<Iterator>::reference> { 26// }; 27 28#include <iterator> 29#include <type_traits> 30 31#include "test_iterators.h" 32 33template <class It> 34struct find_current 35 : private std::reverse_iterator<It> 36{ 37 void test() {++(this->current);} 38}; 39 40template <class It> 41void 42test() 43{ 44 typedef std::reverse_iterator<It> R; 45 typedef std::iterator_traits<It> T; 46 find_current<It> q; 47 q.test(); 48 static_assert((std::is_same<typename R::iterator_type, It>::value), ""); 49 static_assert((std::is_same<typename R::value_type, typename T::value_type>::value), ""); 50 static_assert((std::is_same<typename R::difference_type, typename T::difference_type>::value), ""); 51 static_assert((std::is_same<typename R::reference, typename T::reference>::value), ""); 52 static_assert((std::is_same<typename R::pointer, typename std::iterator_traits<It>::pointer>::value), ""); 53 static_assert((std::is_same<typename R::iterator_category, typename T::iterator_category>::value), ""); 54} 55 56int main() 57{ 58 test<bidirectional_iterator<char*> >(); 59 test<random_access_iterator<char*> >(); 60 test<char*>(); 61} 62