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// { dg-do run { target c++11 } }
// Copyright (C) 2005-2018 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/>.
#include <vector>
#include <testsuite_hooks.h>
#include <testsuite_rvalref.h>
using namespace __gnu_test;
// Test vector::push_back makes no unneeded copies.
void
test01()
{
std::vector<copycounter> a;
copycounter c(1);
copycounter::copycount = 0;
for(int i = 0; i < 10; ++i)
a.push_back(c);
VERIFY(copycounter::copycount == 10);
for(int i = 0; i < 100; ++i)
a.insert(a.begin() + i, c);
VERIFY(copycounter::copycount == 110);
for(int i = 0; i < 1000; ++i)
a.insert(a.end(), c);
VERIFY(copycounter::copycount == 1110);
}
// Test vector::insert(iterator, iterator, iterator) makes no unneeded copies
// when it has to also reallocate the vector's internal buffer.
void
test02()
{
copycounter c(1);
std::vector<copycounter> a(10, c), b(100, c);
copycounter::copycount = 0;
a.insert(a.begin(), b.begin(), b.begin() + 20);
VERIFY(copycounter::copycount == 20);
a.insert(a.end(), b.begin(), b.begin() + 50);
VERIFY(copycounter::copycount == 70);
a.insert(a.begin() + 50, b.begin(), b.end());
VERIFY(copycounter::copycount == 170);
}
// Test vector::insert(iterator, iterator, iterator) makes no unneeded copies
// when it doesn't have to reallocate the vector's internal buffer.
void
test03()
{
copycounter c(1);
std::vector<copycounter> a(10, c), b(100, c);
copycounter::copycount = 0;
a.reserve(1000);
VERIFY(copycounter::copycount == 0);
a.insert(a.begin(), b.begin(), b.begin() + 20);
VERIFY(copycounter::copycount == 20);
a.insert(a.end(), b.begin(), b.begin() + 50);
VERIFY(copycounter::copycount == 70);
a.insert(a.begin() + 50, b.begin(), b.end());
VERIFY(copycounter::copycount == 170);
}
// Test vector::insert(iterator, count, value) makes no unneeded copies
// when it has to also reallocate the vector's internal buffer.
void
test04()
{
copycounter c(1);
std::vector<copycounter> a(10, c);
copycounter::copycount = 0;
a.insert(a.begin(), 20, c);
VERIFY(copycounter::copycount == 20);
a.insert(a.end(), 50, c);
VERIFY(copycounter::copycount == 70);
a.insert(a.begin() + 50, 100, c);
VERIFY(copycounter::copycount == 170);
}
// Test vector::insert(iterator, count, value) makes no unneeded copies
// when it doesn't have to reallocate the vector's internal buffer.
void
test05()
{
copycounter c(1);
std::vector<copycounter> a(10, c);
copycounter::copycount = 0;
a.reserve(1000);
a.insert(a.begin(), 20, c);
// NOTE : These values are each one higher than might be expected, as
// vector::insert(iterator, count, value) copies the value it is given
// when it doesn't reallocate the buffer.
VERIFY(copycounter::copycount == 20 + 1);
a.insert(a.end(), 50, c);
VERIFY(copycounter::copycount == 70 + 2);
a.insert(a.begin() + 50, 100, c);
VERIFY(copycounter::copycount == 170 + 3);
}
int main()
{
test01();
test02();
test03();
test04();
test05();
return 0;
}
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