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 12 13 // <mutex> 14 15 // template <class ...Mutex> class lock_guard; 16 17 // lock_guard(lock_guard const&) = delete; 18 19 // MODULES_DEFINES: _LIBCPP_ABI_VARIADIC_LOCK_GUARD 20 #define _LIBCPP_ABI_VARIADIC_LOCK_GUARD 21 #include <mutex> 22 main()23int main() 24 { 25 using M = std::mutex; 26 M m0, m1, m2; 27 { 28 using LG = std::lock_guard<>; 29 const LG Orig; 30 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}} 31 } 32 { 33 using LG = std::lock_guard<M, M>; 34 const LG Orig(m0, m1); 35 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}} 36 } 37 { 38 using LG = std::lock_guard<M, M, M>; 39 const LG Orig(m0, m1, m2); 40 LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}} 41 } 42 } 43