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cxx/test/algorithms/alg.nonmodifying/alg.is_permutation/is_permutation_pred.pass.cpp
Marshall Clow b30abdd07a Implement n3607: 'equal', 'mismatch', and 'is_permutation' 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@181548 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-09 21:14:23 +00:00

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
// bool
// is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
// ForwardIterator2 first2, BinaryPredicate pred);
#include <algorithm>
#include <functional>
#include <cassert>
#include "test_iterators.h"
#if _LIBCPP_STD_VER > 11
#define HAS_FOUR_ITERATOR_VERSION
#endif
int comparison_count = 0;
template <typename T>
bool counting_equals ( const T &a, const T &b ) {
++comparison_count;
return a == b;
}
int main()
{
{
const int ia[] = {0};
const int ib[] = {0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + 0),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0};
const int ib[] = {1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0};
const int ib[] = {0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0};
const int ib[] = {0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0};
const int ib[] = {1, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0};
const int ib[] = {1, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1};
const int ib[] = {0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1};
const int ib[] = {0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1};
const int ib[] = {1, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1};
const int ib[] = {1, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 0};
const int ib[] = {0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 0};
const int ib[] = {0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 0};
const int ib[] = {1, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 0};
const int ib[] = {1, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 1};
const int ib[] = {0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 1};
const int ib[] = {0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 1};
const int ib[] = {1, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {1, 1};
const int ib[] = {1, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 0, 2};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 1, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 1, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 1, 2};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 2, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 2, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 0};
const int ib[] = {1, 2, 2};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 1};
const int ib[] = {1, 0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 1};
const int ib[] = {1, 0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1, 2};
const int ib[] = {1, 0, 2};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1, 2};
const int ib[] = {1, 2, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1, 2};
const int ib[] = {2, 1, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1, 2};
const int ib[] = {2, 0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 1};
const int ib[] = {1, 0, 1};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 0, 1};
const int ib[] = {1, 0, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib + 1),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
#endif
}
{
const int ia[] = {0, 1, 2, 3, 0, 5, 6, 2, 4, 4};
const int ib[] = {4, 2, 3, 0, 1, 4, 0, 5, 6, 2};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == true);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == true);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib + 1),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
std::equal_to<const int>()) == false);
comparison_count = 0;
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa - 1),
counting_equals<const int>) == false);
assert ( comparison_count > 0 );
comparison_count = 0;
assert(std::is_permutation(random_access_iterator<const int*>(ia),
random_access_iterator<const int*>(ia + sa),
random_access_iterator<const int*>(ib),
random_access_iterator<const int*>(ib + sa - 1),
counting_equals<const int>) == false);
assert ( comparison_count == 0 );
#endif
}
{
const int ia[] = {0, 1, 2, 3, 0, 5, 6, 2, 4, 4};
const int ib[] = {4, 2, 3, 0, 1, 4, 0, 5, 6, 0};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
std::equal_to<const int>()) == false);
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::is_permutation(forward_iterator<const int*>(ia),
forward_iterator<const int*>(ia + sa),
forward_iterator<const int*>(ib),
forward_iterator<const int*>(ib + sa),
std::equal_to<const int>()) == false);
#endif
}
}
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