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// Copyright (C) 2020-2022 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-do run }
#include <algorithm>
#include <testsuite_hooks.h>
void
test01()
{
volatile int i[] = { 0, 1, 2, 3 };
volatile int j[] = { 1, 2, 3 };
int k[] = { 2, 3, 4 };
VERIFY( std::equal(i+1, i+4, j) ); // volatile, volatile
VERIFY( std::equal(i+2, i+4, k) ); // volatile, unqual
VERIFY( ! std::equal(k, k+3, i+1) ); // unqual, volatile
const volatile int* cj = j;
VERIFY( ! std::equal(cj, cj+2, cj+1) ); // const volatile, const volatile
VERIFY( std::equal(cj, cj+3, i+1) ); // const volatile, volatile
VERIFY( ! std::equal(i, i+2, cj) ); // volatile, const volatile
VERIFY( std::equal(cj+1, cj+3, k) ); // const volatile, unqual
VERIFY( ! std::equal(k, k+2, cj) ); // unqual, const volatile
const int* ck = k;
VERIFY( std::equal(ck, ck+2, i+2) ); // const, volatile
VERIFY( ! std::equal(i, i+3, ck) ); // volatile, const
VERIFY( std::equal(cj+1, cj+3, ck) ); // const volatile, const
VERIFY( ! std::equal(ck, ck+1, cj) ); // const, const volatile
#if __cplusplus > 201703L
using std::ranges::equal;
VERIFY( equal(i+1, i+4, j, j+3) ); // volatile, volatile
VERIFY( equal(i+2, i+4, k, k+2) ); // volatile, unqual
VERIFY( ! equal(k, k+3, i+1, i+4) ); // unqual, volatile
VERIFY( ! equal(cj, cj+2, cj+1, cj+3) );// const volatile, const volatile
VERIFY( equal(cj, cj+3, i+1, i+4) ); // const volatile, volatile
VERIFY( ! equal(i, i+2, cj, cj+2) ); // volatile, const volatile
VERIFY( equal(cj+1, cj+3, k, k+2) ); // const volatile, unqual
VERIFY( ! equal(k, k+2, cj, cj+2) ); // unqual, const volatile
VERIFY( equal(ck, ck+2, i+2, i+4) ); // const, volatile
VERIFY( ! equal(i, i+3, ck, ck+3) ); // volatile, const
VERIFY( equal(cj+1, cj+3, ck, ck+2) ); // const volatile, const
VERIFY( ! equal(ck, ck+1, cj, cj+1) ); // const, const volatile
#endif
}
int
main()
{
test01();
}
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