| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // <mutex> |
| |
| // template <class ...Mutex> class lock_guard; |
| |
| // lock_guard& operator=(lock_guard const&) = delete; |
| |
| // MODULES_DEFINES: _LIBCPP_ABI_VARIADIC_LOCK_GUARD |
| #define _LIBCPP_ABI_VARIADIC_LOCK_GUARD |
| #include <mutex> |
| |
| int main() |
| { |
| using M = std::mutex; |
| M m0, m1, m2; |
| M om0, om1, om2; |
| { |
| using LG = std::lock_guard<>; |
| LG lg1, lg2; |
| lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} |
| } |
| { |
| using LG = std::lock_guard<M, M>; |
| LG lg1(m0, m1); |
| LG lg2(om0, om1); |
| lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} |
| } |
| { |
| using LG = std::lock_guard<M, M, M>; |
| LG lg1(m0, m1, m2); |
| LG lg2(om0, om1, om2); |
| lg1 = lg2; // expected-error{{overload resolution selected deleted operator '='}} |
| } |
| } |