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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.
//
//===----------------------------------------------------------------------===//
// <mutex>
// template <class Mutex> class unique_lock;
// void unlock();
#include <mutex>
#include <cassert>
bool unlock_called = false;
struct mutex
{
void lock() {}
void unlock() {unlock_called = true;}
};
mutex m;
int main()
{
std::unique_lock<mutex> lk(m);
lk.unlock();
assert(unlock_called == true);
assert(lk.owns_lock() == false);
try
{
lk.unlock();
assert(false);
}
catch (std::system_error& e)
{
assert(e.code().value() == EPERM);
}
lk.release();
try
{
lk.unlock();
assert(false);
}
catch (std::system_error& e)
{
assert(e.code().value() == EPERM);
}
}
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