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& operator=(lock_guard const&) = delete; 18 19 // MODULES_DEFINES: _LIBCPP_ABI_VARIADIC_LOCK_GUARD 20 #define _LIBCPP_ABI_VARIADIC_LOCK_GUARD 21 #include <mutex> 22 23 int main() 24 { 25 using M = std::mutex; 26 M m0, m1, m2; 27 M om0, om1, om2; 28 { 29 using LG = std::lock_guard<>; 30 LG lg1, lg2; 31 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 32 } 33 { 34 using LG = std::lock_guard<M, M>; 35 LG lg1(m0, m1); 36 LG lg2(om0, om1); 37 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 38 } 39 { 40 using LG = std::lock_guard<M, M, M>; 41 LG lg1(m0, m1, m2); 42 LG lg2(om0, om1, om2); 43 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 44 } 45 } 46
