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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<InputIterator Iter1, InputIterator Iter2>
// requires HasLess<Iter1::value_type, Iter2::value_type>
// && HasLess<Iter2::value_type, Iter1::value_type>
// bool
// lexicographical_compare(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2);
#include <algorithm>
#include <cassert>
#include "test_iterators.h"
template <class Iter1, class Iter2>
void
test()
{
int ia[] = {1, 2, 3, 4};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
int ib[] = {1, 2, 3};
assert(!std::lexicographical_compare(Iter1(ia), Iter1(ia+sa), Iter2(ib), Iter2(ib+2)));
assert( std::lexicographical_compare(Iter1(ib), Iter1(ib+2), Iter2(ia), Iter2(ia+sa)));
assert(!std::lexicographical_compare(Iter1(ia), Iter1(ia+sa), Iter2(ib), Iter2(ib+3)));
assert( std::lexicographical_compare(Iter1(ib), Iter1(ib+3), Iter2(ia), Iter2(ia+sa)));
assert( std::lexicographical_compare(Iter1(ia), Iter1(ia+sa), Iter2(ib+1), Iter2(ib+3)));
assert(!std::lexicographical_compare(Iter1(ib+1), Iter1(ib+3), Iter2(ia), Iter2(ia+sa)));
}
int main()
{
test<input_iterator<const int*>, input_iterator<const int*> >();
test<input_iterator<const int*>, forward_iterator<const int*> >();
test<input_iterator<const int*>, bidirectional_iterator<const int*> >();
test<input_iterator<const int*>, random_access_iterator<const int*> >();
test<input_iterator<const int*>, const int*>();
test<forward_iterator<const int*>, input_iterator<const int*> >();
test<forward_iterator<const int*>, forward_iterator<const int*> >();
test<forward_iterator<const int*>, bidirectional_iterator<const int*> >();
test<forward_iterator<const int*>, random_access_iterator<const int*> >();
test<forward_iterator<const int*>, const int*>();
test<bidirectional_iterator<const int*>, input_iterator<const int*> >();
test<bidirectional_iterator<const int*>, forward_iterator<const int*> >();
test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >();
test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >();
test<bidirectional_iterator<const int*>, const int*>();
test<random_access_iterator<const int*>, input_iterator<const int*> >();
test<random_access_iterator<const int*>, forward_iterator<const int*> >();
test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >();
test<random_access_iterator<const int*>, random_access_iterator<const int*> >();
test<random_access_iterator<const int*>, const int*>();
test<const int*, input_iterator<const int*> >();
test<const int*, forward_iterator<const int*> >();
test<const int*, bidirectional_iterator<const int*> >();
test<const int*, random_access_iterator<const int*> >();
test<const int*, const int*>();
}
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