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, c++14 12 13 // <mutex> 14 15 // template <class ...Mutex> class scoped_lock; 16 17 // scoped_lock& operator=(scoped_lock const&) = delete; 18 19 #include <mutex> 20 #include "test_macros.h" 21 22 int main() 23 { 24 using M = std::mutex; 25 M m0, m1, m2; 26 M om0, om1, om2; 27 { 28 using LG = std::scoped_lock<>; 29 LG lg1, lg2; 30 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 31 } 32 { 33 using LG = std::scoped_lock<M>; 34 LG lg1(m0); 35 LG lg2(om0); 36 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 37 } 38 { 39 using LG = std::scoped_lock<M, M>; 40 LG lg1(m0, m1); 41 LG lg2(om0, om1); 42 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 43 } 44 { 45 using LG = std::scoped_lock<M, M, M>; 46 LG lg1(m0, m1, m2); 47 LG lg2(om0, om1, om2); 48 lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} 49 } 50 } 51
