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// move_iterator 13 14// template <RandomAccessIterator Iter> 15// move_iterator<Iter> 16// operator+(Iter::difference_type n, const move_iterator<Iter>& x); 17// 18// constexpr in C++17 19 20#include <iterator> 21#include <cassert> 22 23#include "test_macros.h" 24#include "test_iterators.h" 25 26template <class It> 27void 28test(It i, typename std::iterator_traits<It>::difference_type n, It x) 29{ 30 const std::move_iterator<It> r(i); 31 std::move_iterator<It> rr = n + r; 32 assert(rr.base() == x); 33} 34 35int main() 36{ 37 char s[] = "1234567890"; 38 test(random_access_iterator<char*>(s+5), 5, random_access_iterator<char*>(s+10)); 39 test(s+5, 5, s+10); 40 41#if TEST_STD_VER > 14 42 { 43 constexpr const char *p = "123456789"; 44 typedef std::move_iterator<const char *> MI; 45 constexpr MI it1 = std::make_move_iterator(p); 46 constexpr MI it2 = std::make_move_iterator(p + 5); 47 constexpr MI it3 = it1 + 5; 48 static_assert(it1 != it2, ""); 49 static_assert(it1 != it3, ""); 50 static_assert(it2 == it3, ""); 51 } 52#endif 53} 54