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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/>.
// { dg-options "-std=gnu++11" }
#include <set>
#include <random>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
struct T { int i; };
bool operator<(T l, T r) { return l.i < r.i; }
using Cmp = std::less<T>;
using __gnu_test::propagating_allocator;
void test01()
{
bool test __attribute__((unused)) = true;
typedef propagating_allocator<T, false> alloc_type;
typedef std::set<T, Cmp, alloc_type> test_type;
test_type v1(alloc_type(1));
v1 = { test_type::value_type{} };
test_type v2(alloc_type(2));
v2 = { test_type::value_type{} };
v2 = std::move(v1);
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(2 == v2.get_allocator().get_personality());
}
void test02()
{
bool test __attribute__((unused)) = true;
typedef propagating_allocator<T, true> alloc_type;
typedef std::set<T, Cmp, alloc_type> test_type;
test_type v1(alloc_type(1));
v1 = { test_type::value_type{} };
auto it = v1.begin();
test_type v2(alloc_type(2));
v2 = { test_type::value_type{} };
v2 = std::move(v1);
VERIFY(0 == v1.get_allocator().get_personality());
VERIFY(1 == v2.get_allocator().get_personality());
VERIFY( it == v2.begin() );
}
void test03()
{
bool test __attribute__((unused)) = true;
using namespace __gnu_test;
typedef propagating_allocator<int, false, tracker_allocator<int>> alloc_type;
typedef std::set<int, std::less<int>, alloc_type> test_type;
tracker_allocator_counter::reset();
test_type v1(alloc_type(1));
v1 = { 0, 1 };
test_type v2(alloc_type(2));
v2 = { 2, 3 };
auto allocs = tracker_allocator_counter::get_allocation_count();
auto constructs = tracker_allocator_counter::get_construct_count();
// Check no allocation on move assignment with non propagating allocators.
v1 = std::move(v2);
VERIFY( 1 == v1.get_allocator().get_personality() );
VERIFY( 2 == v2.get_allocator().get_personality() );
VERIFY( tracker_allocator_counter::get_allocation_count() == allocs );
VERIFY( tracker_allocator_counter::get_construct_count() == constructs + 2 );
}
void test04()
{
bool test __attribute__((unused)) = true;
using namespace __gnu_test;
typedef tracker_allocator<int> alloc_type;
typedef std::set<int, std::less<int>, alloc_type> test_type;
std::mt19937 rng;
std::uniform_int_distribution<int> d;
std::uniform_int_distribution<int>::param_type p{0, 100};
std::uniform_int_distribution<int>::param_type x{0, 1000};
for (int i = 0; i < 10; ++i)
{
test_type l, r;
for (int n = d(rng, p); n > 0; --n)
{
int i = d(rng, x);
l.insert(i);
r.insert(i);
tracker_allocator_counter::reset();
l = r;
VERIFY( tracker_allocator_counter::get_allocation_count() == 0 );
}
}
}
int main()
{
test01();
test02();
test03();
test04();
return 0;
}
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