1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// UNSUPPORTED: libcpp-has-no-threads 11 12// <mutex> 13 14// template <class Mutex> class unique_lock; 15 16// void unlock(); 17 18#include <mutex> 19#include <cassert> 20 21#include "test_macros.h" 22 23bool unlock_called = false; 24 25struct mutex 26{ 27 void lock() {} 28 void unlock() {unlock_called = true;} 29}; 30 31mutex m; 32 33int main() 34{ 35 std::unique_lock<mutex> lk(m); 36 lk.unlock(); 37 assert(unlock_called == true); 38 assert(lk.owns_lock() == false); 39#ifndef TEST_HAS_NO_EXCEPTIONS 40 try 41 { 42 lk.unlock(); 43 assert(false); 44 } 45 catch (std::system_error& e) 46 { 47 assert(e.code().value() == EPERM); 48 } 49#endif 50 lk.release(); 51#ifndef TEST_HAS_NO_EXCEPTIONS 52 try 53 { 54 lk.unlock(); 55 assert(false); 56 } 57 catch (std::system_error& e) 58 { 59 assert(e.code().value() == EPERM); 60 } 61#endif 62} 63