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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.
//
//===----------------------------------------------------------------------===//
// <functional>
// less
#include <functional>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "pointer_comparison_test_helper.hpp"
int main()
{
typedef std::less<int> F;
const F f = F();
static_assert((std::is_same<int, F::first_argument_type>::value), "" );
static_assert((std::is_same<int, F::second_argument_type>::value), "" );
static_assert((std::is_same<bool, F::result_type>::value), "" );
assert(!f(36, 36));
assert(!f(36, 6));
assert(f(6, 36));
{
// test total ordering of int* for less<int*> and less<void>.
do_pointer_comparison_test<int, std::less>();
}
#if TEST_STD_VER > 11
typedef std::less<> F2;
const F2 f2 = F2();
assert(!f2(36, 36));
assert(!f2(36, 6));
assert( f2(6, 36));
assert(!f2(36, 6.0));
assert(!f2(36.0, 6));
assert( f2(6, 36.0));
assert( f2(6.0, 36));
constexpr bool foo = std::less<int> () (36, 36);
static_assert ( !foo, "" );
constexpr bool bar = std::less<> () (36.0, 36);
static_assert ( !bar, "" );
#endif
}
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