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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.
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
// UNSUPPORTED: c++98, c++03
// <future>
// class packaged_task<R(ArgTypes...)>
// ~packaged_task();
#include <future>
#include <cassert>
#include "test_macros.h"
class A
{
long data_;
public:
explicit A(long i) : data_(i) {}
long operator()(long i, long j) const {return data_ + i + j;}
};
void func(std::packaged_task<double(int, char)>)
{
}
void func2(std::packaged_task<double(int, char)> p)
{
p(3, 'a');
}
int main()
{
#ifndef TEST_HAS_NO_EXCEPTIONS
{
std::packaged_task<double(int, char)> p(A(5));
std::future<double> f = p.get_future();
std::thread(func, std::move(p)).detach();
try
{
double i = f.get();
((void)i); // Prevent unused warning
assert(false);
}
catch (const std::future_error& e)
{
assert(e.code() == make_error_code(std::future_errc::broken_promise));
}
}
#endif
{
std::packaged_task<double(int, char)> p(A(5));
std::future<double> f = p.get_future();
std::thread(func2, std::move(p)).detach();
assert(f.get() == 105.0);
}
}
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