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// Copyright (C) 2013-2019 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 compile { target c++11 } }
#include <unordered_map>
#include <testsuite_allocator.h>
struct T { int i; };
struct hash
{
std::size_t operator()(const T t) const noexcept
{ return t.i; }
};
struct equal_to
{
bool operator()(const T& lhs, const T& rhs) const noexcept
{ return lhs.i == rhs.i; }
};
// Versions of the function objects without nothrow swap.
struct hash_t : hash { };
void swap(hash_t&, hash_t&) noexcept(false) { }
struct equal_to_t : equal_to { };
void swap(equal_to_t&, equal_to_t&) noexcept(false) { }
using __gnu_test::propagating_allocator;
void test01()
{
typedef std::allocator<std::pair<const T, T>> alloc_type;
typedef std::unordered_map<T, T, hash, equal_to, alloc_type> test_type;
test_type v1;
test_type v2;
// this is a GNU extension for std::allocator
static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" );
}
void test02()
{
typedef std::allocator<std::pair<const T, T>> alloc_type;
typedef std::unordered_map<T, T, hash_t, equal_to, alloc_type> test_type;
test_type v1;
test_type v2;
static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
static_assert( !noexcept( v1.swap(v2) ), "Swap can throw" );
}
void test03()
{
typedef std::allocator<std::pair<const T, T>> alloc_type;
typedef std::unordered_map<T, T, hash, equal_to_t, alloc_type> test_type;
test_type v1;
test_type v2;
static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
static_assert( !noexcept( v1.swap(v2) ), "Swap can throw" );
}
void test04()
{
typedef propagating_allocator<std::pair<const T, T>, false> alloc_type;
typedef std::unordered_map<T, T, hash, equal_to, alloc_type> test_type;
test_type v1(alloc_type(1));
test_type v2(alloc_type(2));
static_assert( !noexcept( v1 = std::move(v2) ), "Move assign can throw" );
static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" );
}
void test05()
{
typedef propagating_allocator<std::pair<const T, T>, true> alloc_type;
typedef std::unordered_map<T, T, hash, equal_to, alloc_type> test_type;
test_type v1(alloc_type(1));
test_type v2(alloc_type(2));
static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" );
}
void test06()
{
typedef std::unordered_map<int, int> test_type;
static_assert( noexcept( test_type() ), "Default constructor does not throw" );
static_assert( noexcept( test_type(test_type()) ), "Move constructor does not throw" );
}
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