distance.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c
1//===----------------------------------------------------------------------===// 2// 3// ��������������������The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <iterator> 11 12// template <InputIterator Iter> 13// Iter::difference_type 14// distance(Iter first, Iter last); 15// 16// template <RandomAccessIterator Iter> 17// Iter::difference_type 18// distance(Iter first, Iter last); 19 20#include <iterator> 21#include <cassert> 22 23#include "../../iterators.h" 24 25template <class It> 26void 27test(It first, It last, typename std::iterator_traits<It>::difference_type x) 28{ 29 assert(std::distance(first, last) == x); 30} 31 32int main() 33{ 34 const char* s = "1234567890"; 35 test(input_iterator<const char*>(s), input_iterator<const char*>(s+10), 10); 36 test(forward_iterator<const char*>(s), forward_iterator<const char*>(s+10), 10); 37 test(bidirectional_iterator<const char*>(s), bidirectional_iterator<const char*>(s+10), 10); 38 test(random_access_iterator<const char*>(s), random_access_iterator<const char*>(s+10), 10); 39 test(s, s+10, 10); 40} 41