forked from OSchip/llvm-project
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <future>
|
|
|
|
// class promise<R>
|
|
|
|
// template <class Allocator>
|
|
// promise(allocator_arg_t, const Allocator& a);
|
|
|
|
#include <future>
|
|
#include <cassert>
|
|
|
|
#include "../test_allocator.h"
|
|
|
|
int main()
|
|
{
|
|
assert(test_alloc_base::count == 0);
|
|
{
|
|
std::promise<int> p(std::allocator_arg, test_allocator<int>());
|
|
assert(test_alloc_base::count == 1);
|
|
std::future<int> f = p.get_future();
|
|
assert(test_alloc_base::count == 1);
|
|
assert(f.valid());
|
|
}
|
|
assert(test_alloc_base::count == 0);
|
|
{
|
|
std::promise<int&> p(std::allocator_arg, test_allocator<int>());
|
|
assert(test_alloc_base::count == 1);
|
|
std::future<int&> f = p.get_future();
|
|
assert(test_alloc_base::count == 1);
|
|
assert(f.valid());
|
|
}
|
|
assert(test_alloc_base::count == 0);
|
|
{
|
|
std::promise<void> p(std::allocator_arg, test_allocator<void>());
|
|
assert(test_alloc_base::count == 1);
|
|
std::future<void> f = p.get_future();
|
|
assert(test_alloc_base::count == 1);
|
|
assert(f.valid());
|
|
}
|
|
assert(test_alloc_base::count == 0);
|
|
}
|