gcc/libstdc++-v3/testsuite/20_util/integer_comparisons/equal.cc
2021-01-04 10:26:59 +01:00

75 lines
1.8 KiB
C++

// Copyright (C) 2020-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
#include <utility>
#include <limits>
#include <testsuite_hooks.h>
void
test01()
{
unsigned int u = std::numeric_limits<unsigned int>::max();
int s = -1;
VERIFY( !std::cmp_equal(s, u) );
}
constexpr bool
test02()
{
unsigned int u = std::numeric_limits<unsigned int>::max();
int s = -1;
if (std::cmp_equal(s, u))
throw 1;
if (std::cmp_equal(u, s))
throw 2;
return true;
}
void
test03()
{
short ss = -1;
int s = -1;
VERIFY( std::cmp_equal(s, ss) );
VERIFY( std::cmp_equal(ss, s) );
unsigned int u = (unsigned int) -1;
VERIFY( !std::cmp_equal(s, u) );
VERIFY( !std::cmp_equal(u, s) );
VERIFY( !std::cmp_equal(ss, u) );
VERIFY( !std::cmp_equal(u, ss) );
unsigned long long ul = (unsigned long long) -1;
VERIFY( !std::cmp_equal(s, ul) );
VERIFY( !std::cmp_equal(ul, s) );
VERIFY( !std::cmp_equal(ss, ul) );
VERIFY( !std::cmp_equal(ul, ss) );
VERIFY( !std::cmp_equal(u, ul) );
VERIFY( !std::cmp_equal(ul, u) );
}
int
main()
{
test01();
static_assert( test02() );
test03();
}