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// Copyright (C) 2013-2015 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/>.
// 25.2.10 [mismatch]
// { dg-options " -std=gnu++14 " }
#include <algorithm>
#include <testsuite_hooks.h>
#include <testsuite_iterators.h>
using __gnu_test::test_container;
using __gnu_test::input_iterator_wrapper;
typedef test_container<int, input_iterator_wrapper> Container;
int array1[] = {0, 1};
int array2[] = {1, 0};
int array3[] = {1, 0, 1};
struct equal_to
{
static int count;
bool operator()(int l, int r)
{
++count;
return l == r;
}
} eq;
int equal_to::count = 0;
bool __attribute__((unused)) test = false;
void test1()
{
// empty ranges
Container con1(array1, array1);
Container con2(array2, array2);
auto res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end());
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end(), eq);
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
VERIFY( equal_to::count == 0 );
}
void test2()
{
// first range empty, second non-empty
Container con1(array1, array1);
Container con2(array2, array2 + 2);
auto res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end());
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end(), eq);
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
VERIFY( equal_to::count == 0 );
}
void test3()
{
// first range non-empty, second empty
Container con1(array1, array1 + 2);
Container con2(array2, array2);
auto res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end());
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end(), eq);
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
VERIFY( equal_to::count == 0 );
}
void test4()
{
// non-empty, mismatching ranges
Container con1(array1, array1 + 2);
Container con2(array2, array2 + 2);
auto res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end());
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
con1.bounds.first = array1;
con2.bounds.first = array2;
res = std::mismatch(con1.begin(), con1.end(), con2.begin(), con2.end(), eq);
VERIFY( res.first.ptr == array1 );
VERIFY( res.second.ptr == array2 );
VERIFY( equal_to::count == 1 );
equal_to::count = 0;
}
void test5()
{
// non-empty, matching ranges
Container con3(array3, array3 + 2);
Container con2(array2, array2 + 2);
auto res = std::mismatch(con3.begin(), con3.end(), con2.begin(), con2.end());
VERIFY( res.first.ptr == array3 + 2 );
VERIFY( res.second.ptr == array2 + 2 );
con3.bounds.first = array3;
con2.bounds.first = array2;
res = std::mismatch(con3.begin(), con3.end(), con2.begin(), con2.end(), eq);
VERIFY( res.first.ptr == array3 + 2 );
VERIFY( res.second.ptr == array2 + 2 );
VERIFY( equal_to::count == 2 );
equal_to::count = 0;
}
void test6()
{
// non-empty, matching sub-ranges, first range longer
Container con3(array3, array3 + 3);
Container con2(array2, array2 + 2);
auto res = std::mismatch(con3.begin(), con3.end(), con2.begin(), con2.end());
VERIFY( res.first.ptr == array3 + 2 );
VERIFY( res.second.ptr == array2 + 2 );
con3.bounds.first = array3;
con2.bounds.first = array2;
res = std::mismatch(con3.begin(), con3.end(), con2.begin(), con2.end(), eq);
VERIFY( res.first.ptr == array3 + 2 );
VERIFY( res.second.ptr == array2 + 2 );
VERIFY( equal_to::count == 2 );
equal_to::count = 0;
}
void test7()
{
// non-empty, matching sub-ranges, second range longer
Container con3(array3, array3 + 3);
Container con2(array2, array2 + 2);
auto res = std::mismatch(con2.begin(), con2.end(), con3.begin(), con3.end());
VERIFY( res.first.ptr == array2 + 2 );
VERIFY( res.second.ptr == array3 + 2 );
con3.bounds.first = array3;
con2.bounds.first = array2;
res = std::mismatch(con2.begin(), con2.end(), con3.begin(), con3.end(), eq);
VERIFY( res.first.ptr == array2 + 2 );
VERIFY( res.second.ptr == array3 + 2 );
VERIFY( equal_to::count == 2 );
equal_to::count = 0;
}
int main()
{
test1();
test2();
test3();
test4();
test5();
test6();
test7();
}
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