set_value_const.pass.cpp [plain text]
#include <future>
#include <cassert>
struct A
{
A() {}
A(const A&) {throw 10;}
};
int main()
{
{
typedef int T;
T i = 3;
std::promise<T> p;
std::future<T> f = p.get_future();
p.set_value(i);
++i;
assert(f.get() == 3);
--i;
try
{
p.set_value(i);
assert(false);
}
catch (const std::future_error& e)
{
assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied));
}
}
{
typedef A T;
T i;
std::promise<T> p;
std::future<T> f = p.get_future();
try
{
p.set_value(i);
assert(false);
}
catch (int j)
{
assert(j == 10);
}
}
}