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// template <BidirectionalIterator Iter1, BidirectionalIterator Iter2> 15// requires HasEqualTo<Iter1, Iter2> 16// bool 17// operator!=(const reverse_iterator<Iter1>& x, const reverse_iterator<Iter2>& y); 18 19#include <iterator> 20#include <cassert> 21 22#include "test_iterators.h" 23 24template <class It> 25void 26test(It l, It r, bool x) 27{ 28 const std::reverse_iterator<It> r1(l); 29 const std::reverse_iterator<It> r2(r); 30 assert((r1 != r2) == x); 31} 32 33int main() 34{ 35 const char* s = "1234567890"; 36 test(bidirectional_iterator<const char*>(s), bidirectional_iterator<const char*>(s), false); 37 test(bidirectional_iterator<const char*>(s), bidirectional_iterator<const char*>(s+1), true); 38 test(random_access_iterator<const char*>(s), random_access_iterator<const char*>(s), false); 39 test(random_access_iterator<const char*>(s), random_access_iterator<const char*>(s+1), true); 40 test(s, s, false); 41 test(s, s+1, true); 42} 43