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 Iter1, RandomAccessIterator Iter2> 15// requires HasLess<Iter2, Iter1> 16// bool 17// operator>(const move_iterator<Iter1>& x, const move_iterator<Iter2>& y); 18// 19// constexpr in C++17 20 21#include <iterator> 22#include <cassert> 23 24#include "test_macros.h" 25#include "test_iterators.h" 26 27template <class It> 28void 29test(It l, It r, bool x) 30{ 31 const std::move_iterator<It> r1(l); 32 const std::move_iterator<It> r2(r); 33 assert((r1 > r2) == x); 34} 35 36int main() 37{ 38 char s[] = "1234567890"; 39 test(random_access_iterator<char*>(s), random_access_iterator<char*>(s), false); 40 test(random_access_iterator<char*>(s), random_access_iterator<char*>(s+1), false); 41 test(random_access_iterator<char*>(s+1), random_access_iterator<char*>(s), true); 42 test(s, s, false); 43 test(s, s+1, false); 44 test(s+1, s, true); 45 46#if TEST_STD_VER > 14 47 { 48 constexpr const char *p = "123456789"; 49 typedef std::move_iterator<const char *> MI; 50 constexpr MI it1 = std::make_move_iterator(p); 51 constexpr MI it2 = std::make_move_iterator(p + 5); 52 constexpr MI it3 = std::make_move_iterator(p); 53 static_assert(!(it1 > it2), ""); 54 static_assert(!(it1 > it3), ""); 55 static_assert( (it2 > it3), ""); 56 } 57#endif 58} 59