libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.scoped/copy.verify.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: no-threads
  10 // UNSUPPORTED: c++03, c++11, c++14
  11
  12 // <mutex>
  13
  14 // template <class ...Mutex> class scoped_lock;
  15
  16 // scoped_lock(scoped_lock const&) = delete;
  17
  18 #include <mutex>
  19 #include "test_macros.h"
  20
  21 int main(int, char**)
  22 {
  23     using M = std::mutex;
  24     M m0, m1, m2;
  25     {
  26         using LG = std::scoped_lock<>;
  27         const LG Orig;
  28         LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
  29     }
  30     {
  31         using LG = std::scoped_lock<M>;
  32         const LG Orig(m0);
  33         LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
  34     }
  35     {
  36         using LG = std::scoped_lock<M, M>;
  37         const LG Orig(m0, m1);
  38         LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
  39     }
  40     {
  41         using LG = std::scoped_lock<M, M, M>;
  42         const LG Orig(m0, m1, m2);
  43         LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
  44     }
  45
  46   return 0;
  47 }