difference_type.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976
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 <RandomAccessIterator Iterator> 15// reverse_iterator<Iter> 16// operator+(Iter::difference_type n, const reverse_iterator<Iter>& x); 17 18#include <iterator> 19#include <cassert> 20 21#include "../../../../iterators.h" 22 23template <class It> 24void 25test(It i, typename std::iterator_traits<It>::difference_type n, It x) 26{ 27 const std::reverse_iterator<It> r(i); 28 std::reverse_iterator<It> rr = n + r; 29 assert(rr.base() == x); 30} 31 32int main() 33{ 34 const char* s = "1234567890"; 35 test(random_access_iterator<const char*>(s+5), 5, random_access_iterator<const char*>(s)); 36 test(s+5, 5, s); 37} 38