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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.
//
//===----------------------------------------------------------------------===//
// <thread>
// class thread
// bool joinable() const;
#include <thread>
#include <new>
#include <cstdlib>
#include <cassert>
class G
{
int alive_;
public:
static int n_alive;
static bool op_run;
G() : alive_(1) {++n_alive;}
G(const G& g) : alive_(g.alive_) {++n_alive;}
~G() {alive_ = 0; --n_alive;}
void operator()()
{
assert(alive_ == 1);
assert(n_alive >= 1);
op_run = true;
}
};
int G::n_alive = 0;
bool G::op_run = false;
int main()
{
{
std::thread t0((G()));
assert(t0.joinable());
t0.join();
assert(!t0.joinable());
}
}
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