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// 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 "-fchar8_t" }
// { dg-do run }
#include <algorithm>
#include <testsuite_hooks.h>
// Check that the memcmp optimization in std::lexicographical_compare
// still works for mixed-type comparisons.
void
test01()
{
unsigned char a = 0;
char8_t b = 1;
VERIFY( std::lexicographical_compare(&a, &a + 1, &b, &b + 1) );
VERIFY( ! std::lexicographical_compare(&b, &b + 1, &a, &a + 1) );
}
void
test02()
{
// N.B. if char is signed this won't actually use the memcmp optimization.
unsigned char a = 0;
char b = 1;
VERIFY( std::lexicographical_compare(&a, &a + 1, &b, &b + 1) );
VERIFY( ! std::lexicographical_compare(&b, &b + 1, &a, &a + 1) );
}
void
test03()
{
// N.B. if char is signed this won't actually use the memcmp optimization.
char a = 0;
char8_t b = 1;
VERIFY( std::lexicographical_compare(&a, &a + 1, &b, &b + 1) );
VERIFY( ! std::lexicographical_compare(&b, &b + 1, &a, &a + 1) );
}
int main()
{
test01();
test02();
test03();
}
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