forked from OSchip/llvm-project
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <iterator>
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// template <InputIterator Iter>
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// Iter::difference_type
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// distance(Iter first, Iter last);
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//
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// template <RandomAccessIterator Iter>
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// Iter::difference_type
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// distance(Iter first, Iter last);
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#include <iterator>
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#include <cassert>
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#include "test_iterators.h"
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template <class It>
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void
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test(It first, It last, typename std::iterator_traits<It>::difference_type x)
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{
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assert(std::distance(first, last) == x);
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}
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int main()
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{
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const char* s = "1234567890";
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test(input_iterator<const char*>(s), input_iterator<const char*>(s+10), 10);
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test(forward_iterator<const char*>(s), forward_iterator<const char*>(s+10), 10);
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test(bidirectional_iterator<const char*>(s), bidirectional_iterator<const char*>(s+10), 10);
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test(random_access_iterator<const char*>(s), random_access_iterator<const char*>(s+10), 10);
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test(s, s+10, 10);
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}
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