//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // UNSUPPORTED: libcpp-has-no-threads // UNSUPPORTED: c++98, c++03, c++11, c++14 // <mutex> // template <class ...Mutex> class scoped_lock; // scoped_lock& operator=(scoped_lock const&) = delete; #include <mutex> #include "test_macros.h" int main() { using M = std::mutex; M m0, m1, m2; M om0, om1, om2; { using LG = std::scoped_lock<>; LG lg1, lg2; lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} } { using LG = std::scoped_lock<M>; LG lg1(m0); LG lg2(om0); lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} } { using LG = std::scoped_lock<M, M>; LG lg1(m0, m1); LG lg2(om0, om1); lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} } { using LG = std::scoped_lock<M, M, M>; LG lg1(m0, m1, m2); LG lg2(om0, om1, om2); lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} } }