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 // UNSUPPORTED: c++98, c++03, c++11 12 13 // <shared_mutex> 14 15 // template <class Mutex> class shared_lock; 16 17 // shared_lock& operator=(shared_lock&& u); 18 19 #include <shared_mutex> 20 #include <cassert> 21 #include "nasty_containers.hpp" 22 23 24 int main() 25 { 26 { 27 typedef std::shared_timed_mutex M; 28 M m0; 29 M m1; 30 std::shared_lock<M> lk0(m0); 31 std::shared_lock<M> lk1(m1); 32 lk1 = std::move(lk0); 33 assert(lk1.mutex() == std::addressof(m0)); 34 assert(lk1.owns_lock() == true); 35 assert(lk0.mutex() == nullptr); 36 assert(lk0.owns_lock() == false); 37 } 38 { 39 typedef nasty_mutex M; 40 M m0; 41 M m1; 42 std::shared_lock<M> lk0(m0); 43 std::shared_lock<M> lk1(m1); 44 lk1 = std::move(lk0); 45 assert(lk1.mutex() == std::addressof(m0)); 46 assert(lk1.owns_lock() == true); 47 assert(lk0.mutex() == nullptr); 48 assert(lk0.owns_lock() == false); 49 } 50 } 51
