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// Copyright (C) 2020-2024 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 unsigned char i[] = { 0, 1, 2, 3 };
volatile unsigned char j[] = { 1, 2, 3 };
unsigned char k[] = { 2, 3, 4 };
// v = volatile, c = const, cv = const volatile, u = unqualified
VERIFY( ! std::lexicographical_compare(i+1, i+4, j, j+2) ); // v v
VERIFY( std::lexicographical_compare(i+2, i+4, k, k+3) ); // v u
VERIFY( ! std::lexicographical_compare(k, k+3, i+1, i+4) ); // u v
const volatile unsigned char* cj = j;
VERIFY( std::lexicographical_compare(cj, cj+2, cj+1, cj+3) ); // cv cv
VERIFY( ! std::lexicographical_compare(cj, cj+3, i+1, i+4) ); // cv v
VERIFY( std::lexicographical_compare(i, i+2, cj, cj+2) ); // v cv
VERIFY( std::lexicographical_compare(cj+1, cj+3, k, k+3) ); // cv u
VERIFY( ! std::lexicographical_compare(k, k+2, cj, cj+3) ); // u cv
const unsigned char* ck = k;
VERIFY( ! std::lexicographical_compare(ck, ck+2, i+1, i+2) ); // c v
VERIFY( std::lexicographical_compare(i, i+3, ck, ck+3) ); // v c
VERIFY( std::lexicographical_compare(cj+1, cj+3, ck, ck+3) ); // cv c
VERIFY( ! std::lexicographical_compare(ck, ck+1, cj, cj+2) ); // c cv
#if __cplusplus > 201703L
using std::ranges::lexicographical_compare;
VERIFY( ! lexicographical_compare(i+1, i+4, j, j+2) ); // v v
VERIFY( lexicographical_compare(i+2, i+4, k, k+3) ); // v u
VERIFY( ! lexicographical_compare(k, k+3, i+1, i+4) ); // u v
VERIFY( lexicographical_compare(cj, cj+2, cj+1, cj+3) ); // cv cv
VERIFY( ! lexicographical_compare(cj, cj+3, i+1, i+4) ); // cv v
VERIFY( lexicographical_compare(i, i+2, cj, cj+2) ); // v cv
VERIFY( lexicographical_compare(cj+1, cj+3, k, k+3) ); // cv u
VERIFY( ! lexicographical_compare(k, k+2, cj, cj+3) ); // u cv
VERIFY( ! lexicographical_compare(ck, ck+2, i+1, i+2) ); // c v
VERIFY( lexicographical_compare(i, i+3, ck, ck+3) ); // v c
VERIFY( lexicographical_compare(cj+1, cj+3, ck, ck+3) ); // cv c
VERIFY( ! lexicographical_compare(ck, ck+1, cj, cj+2) ); // c cv
#endif
}
int
main()
{
test01();
}
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