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//===----------------------------------------------------------------------===//
//
// 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"
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);
}
#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
}
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