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// { dg-do run { target c++11 } }
// Copyright (C) 2011-2018 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/>.
// 20.4.2.1 [tuple.cnstr] Allocator-extended constructors
#include <memory>
#include <tuple>
#include <testsuite_hooks.h>
struct MyAlloc { };
// type that can't be constructed with an allocator
struct CannotUse
{
CannotUse(int = 0, int = 0) : ok(true) { }
bool ok;
};
// type that can be constructed with an allocator
// but which has uses_allocator == false
struct DoesNotUse
{
typedef MyAlloc allocator_type;
DoesNotUse(int = 0) : ok(true) { }
DoesNotUse(std::allocator_arg_t, MyAlloc, int = 0) : ok(false) { }
DoesNotUse(MyAlloc) : ok(false) { }
DoesNotUse(int, MyAlloc) : ok(false) { }
DoesNotUse(const DoesNotUse&) : ok(true) { }
DoesNotUse(std::allocator_arg_t, MyAlloc, const DoesNotUse&) : ok(false) { }
DoesNotUse(const DoesNotUse&, MyAlloc) : ok(false) { }
DoesNotUse(DoesNotUse&&) : ok(true) { }
DoesNotUse(std::allocator_arg_t, MyAlloc, DoesNotUse&&) : ok(false) { }
DoesNotUse(DoesNotUse&&, MyAlloc) : ok(false) { }
bool ok;
};
namespace std
{
template<typename A>
struct uses_allocator<DoesNotUse, A> : false_type { };
}
// type that can be constructed with an allocator as second argument
struct UsesWithTag
{
typedef MyAlloc allocator_type;
UsesWithTag(int = 0) : ok(false) { }
UsesWithTag(std::allocator_arg_t, MyAlloc, int = 0) : ok(true) { }
UsesWithTag(MyAlloc) : ok(false) { }
UsesWithTag(int, MyAlloc) : ok(false) { }
UsesWithTag(const UsesWithTag&) : ok(false) { }
UsesWithTag(std::allocator_arg_t, MyAlloc, const UsesWithTag&) : ok(true) { }
UsesWithTag(const UsesWithTag&, MyAlloc) : ok(false) { }
UsesWithTag(UsesWithTag&&) : ok(false) { }
UsesWithTag(std::allocator_arg_t, MyAlloc, UsesWithTag&&) : ok(true) { }
UsesWithTag(UsesWithTag&&, MyAlloc) : ok(false) { }
bool ok;
};
// type that can be constructed with an allocator as last argument
struct UsesWithoutTag
{
typedef MyAlloc allocator_type;
UsesWithoutTag(int = 0) : ok(false) { }
UsesWithoutTag(MyAlloc) : ok(true) { }
UsesWithoutTag(int, MyAlloc) : ok(true) { }
UsesWithoutTag(const UsesWithoutTag&) : ok(false) { }
UsesWithoutTag(const UsesWithoutTag&, MyAlloc) : ok(true) { }
UsesWithoutTag(UsesWithoutTag&&) : ok(false) { }
UsesWithoutTag(UsesWithoutTag&&, MyAlloc) : ok(true) { }
bool ok;
};
void test01()
{
using std::allocator_arg;
using std::tuple;
using std::make_tuple;
using std::get;
typedef CannotUse T1;
typedef DoesNotUse T2;
typedef UsesWithTag T3;
typedef UsesWithoutTag T4;
typedef tuple<T1, T2, T3, T4> test_type;
MyAlloc a;
// default construction
test_type t1(allocator_arg, a);
VERIFY( get<0>(t1).ok );
VERIFY( get<1>(t1).ok );
VERIFY( get<2>(t1).ok );
VERIFY( get<3>(t1).ok );
// copy construction
test_type t2(allocator_arg, a, t1);
VERIFY( get<0>(t2).ok );
VERIFY( get<1>(t2).ok );
VERIFY( get<2>(t2).ok );
VERIFY( get<3>(t2).ok );
// move construction
test_type t3(allocator_arg, a, std::move(t1));
VERIFY( get<0>(t3).ok );
VERIFY( get<1>(t3).ok );
VERIFY( get<2>(t3).ok );
VERIFY( get<3>(t3).ok );
// construction from int
test_type t4(allocator_arg, a, 1, 2, 3, 4);
VERIFY( get<0>(t4).ok );
VERIFY( get<1>(t4).ok );
VERIFY( get<2>(t4).ok );
VERIFY( get<3>(t4).ok );
auto ints = make_tuple(1, 2, 3, 4);
// construction from lvalue tuple of ints
test_type t5(allocator_arg, a, ints);
VERIFY( get<0>(t5).ok );
VERIFY( get<1>(t5).ok );
VERIFY( get<2>(t5).ok );
VERIFY( get<3>(t2).ok );
// construction from rvalue tuple of ints
test_type t6(allocator_arg, a, std::move(ints));
VERIFY( get<0>(t6).ok );
VERIFY( get<1>(t6).ok );
VERIFY( get<2>(t6).ok );
VERIFY( get<3>(t6).ok );
}
void test02()
{
using std::allocator_arg;
using std::tuple;
using std::make_tuple;
typedef tuple<> test_type;
MyAlloc a;
// default construction
test_type t1(allocator_arg, a);
// copy construction
test_type t2(allocator_arg, a, t1);
// move construction
test_type t3(allocator_arg, a, std::move(t1));
// make_tuple
test_type empty = make_tuple();
}
int main()
{
test01();
test02();
return 0;
}
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