cxx/test/iterators/iterator.primitives/iterator.operations/next.pass.cpp
Howard Hinnant bc8d3f97eb libcxx initial import
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 19:42:16 +00:00

47 lines
1.3 KiB
C++

//===----------------------------------------------------------------------===//
//
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <iterator>
// template <InputIterator Iter>
// Iter next(Iter x, Iter::difference_type n = 1);
#include <iterator>
#include <cassert>
#include "../../iterators.h"
template <class It>
void
test(It i, typename std::iterator_traits<It>::difference_type n, It x)
{
assert(std::next(i, n) == x);
}
template <class It>
void
test(It i, It x)
{
assert(std::next(i) == x);
}
int main()
{
const char* s = "1234567890";
test(forward_iterator<const char*>(s), 10, forward_iterator<const char*>(s+10));
test(bidirectional_iterator<const char*>(s), 10, bidirectional_iterator<const char*>(s+10));
test(random_access_iterator<const char*>(s), 10, random_access_iterator<const char*>(s+10));
test(s, 10, s+10);
test(forward_iterator<const char*>(s), forward_iterator<const char*>(s+1));
test(bidirectional_iterator<const char*>(s), bidirectional_iterator<const char*>(s+1));
test(random_access_iterator<const char*>(s), random_access_iterator<const char*>(s+1));
test(s, s+1);
}