a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
88 lines
2.6 KiB
C++
88 lines
2.6 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>
|
|
|
|
// promise& operator=(const promise& rhs) = delete;
|
|
|
|
#include <future>
|
|
#include <cassert>
|
|
|
|
#include "../test_allocator.h"
|
|
|
|
int main()
|
|
{
|
|
assert(test_alloc_base::count == 0);
|
|
{
|
|
std::promise<int> p0(std::allocator_arg, test_allocator<int>());
|
|
std::promise<int> p(std::allocator_arg, test_allocator<int>());
|
|
assert(test_alloc_base::count == 2);
|
|
p = p0;
|
|
assert(test_alloc_base::count == 1);
|
|
std::future<int> f = p.get_future();
|
|
assert(test_alloc_base::count == 1);
|
|
assert(f.valid());
|
|
try
|
|
{
|
|
f = p0.get_future();
|
|
assert(false);
|
|
}
|
|
catch (const std::future_error& e)
|
|
{
|
|
assert(e.code() == make_error_code(std::future_errc::no_state));
|
|
}
|
|
assert(test_alloc_base::count == 1);
|
|
}
|
|
assert(test_alloc_base::count == 0);
|
|
{
|
|
std::promise<int&> p0(std::allocator_arg, test_allocator<int>());
|
|
std::promise<int&> p(std::allocator_arg, test_allocator<int>());
|
|
assert(test_alloc_base::count == 2);
|
|
p = p0;
|
|
assert(test_alloc_base::count == 1);
|
|
std::future<int&> f = p.get_future();
|
|
assert(test_alloc_base::count == 1);
|
|
assert(f.valid());
|
|
try
|
|
{
|
|
f = p0.get_future();
|
|
assert(false);
|
|
}
|
|
catch (const std::future_error& e)
|
|
{
|
|
assert(e.code() == make_error_code(std::future_errc::no_state));
|
|
}
|
|
assert(test_alloc_base::count == 1);
|
|
}
|
|
assert(test_alloc_base::count == 0);
|
|
{
|
|
std::promise<void> p0(std::allocator_arg, test_allocator<void>());
|
|
std::promise<void> p(std::allocator_arg, test_allocator<void>());
|
|
assert(test_alloc_base::count == 2);
|
|
p = p0;
|
|
assert(test_alloc_base::count == 1);
|
|
std::future<void> f = p.get_future();
|
|
assert(test_alloc_base::count == 1);
|
|
assert(f.valid());
|
|
try
|
|
{
|
|
f = p0.get_future();
|
|
assert(false);
|
|
}
|
|
catch (const std::future_error& e)
|
|
{
|
|
assert(e.code() == make_error_code(std::future_errc::no_state));
|
|
}
|
|
assert(test_alloc_base::count == 1);
|
|
}
|
|
assert(test_alloc_base::count == 0);
|
|
}
|