//===----------------------------------------------------------------------===//
|
//
|
// The LLVM Compiler Infrastructure
|
//
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
// Source Licenses. See LICENSE.TXT for details.
|
//
|
//===----------------------------------------------------------------------===//
|
|
// <memory>
|
|
// template <class Alloc>
|
// struct allocator_traits
|
// {
|
// static allocator_type
|
// select_on_container_copy_construction(const allocator_type& a);
|
// ...
|
// };
|
|
#include <memory>
|
#include <new>
|
#include <type_traits>
|
#include <cassert>
|
|
#include "test_macros.h"
|
#include "incomplete_type_helper.h"
|
|
template <class T>
|
struct A
|
{
|
typedef T value_type;
|
int id;
|
explicit A(int i = 0) : id(i) {}
|
|
};
|
|
template <class T>
|
struct B
|
{
|
typedef T value_type;
|
|
int id;
|
explicit B(int i = 0) : id(i) {}
|
|
B select_on_container_copy_construction() const
|
{
|
return B(100);
|
}
|
};
|
|
int main()
|
{
|
{
|
A<int> a;
|
assert(std::allocator_traits<A<int> >::select_on_container_copy_construction(a).id == 0);
|
}
|
{
|
const A<int> a(0);
|
assert(std::allocator_traits<A<int> >::select_on_container_copy_construction(a).id == 0);
|
}
|
{
|
typedef IncompleteHolder* VT;
|
typedef A<VT> Alloc;
|
Alloc a;
|
assert(std::allocator_traits<Alloc>::select_on_container_copy_construction(a).id == 0);
|
}
|
#if TEST_STD_VER >= 11
|
{
|
B<int> b;
|
assert(std::allocator_traits<B<int> >::select_on_container_copy_construction(b).id == 100);
|
}
|
{
|
const B<int> b(0);
|
assert(std::allocator_traits<B<int> >::select_on_container_copy_construction(b).id == 100);
|
}
|
#endif
|
}
|