712522cfd8
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111759 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.5 KiB
C++
46 lines
1.5 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 distributed under the University of Illinois Open Source
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// License. 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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// void advance(Iter& i, Iter::difference_type n);
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//
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// template <BidirectionalIterator Iter>
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// void advance(Iter& i, Iter::difference_type n);
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//
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// template <RandomAccessIterator Iter>
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// void advance(Iter& i, Iter::difference_type n);
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#include <iterator>
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#include <cassert>
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#include "../../iterators.h"
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template <class It>
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void
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test(It i, typename std::iterator_traits<It>::difference_type n, It x)
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{
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std::advance(i, n);
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assert(i == 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), 10, input_iterator<const char*>(s+10));
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test(forward_iterator<const char*>(s), 10, forward_iterator<const char*>(s+10));
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test(bidirectional_iterator<const char*>(s+5), 5, bidirectional_iterator<const char*>(s+10));
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test(bidirectional_iterator<const char*>(s+5), -5, bidirectional_iterator<const char*>(s));
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test(random_access_iterator<const char*>(s+5), 5, random_access_iterator<const char*>(s+10));
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test(random_access_iterator<const char*>(s+5), -5, random_access_iterator<const char*>(s));
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test(s+5, 5, s+10);
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test(s+5, -5, s);
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}
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