libcxx

libcxx mirror with random patches
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copy_ctor.fail.cpp (766B)


      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 // <mutex>
     11 
     12 // template <class Mutex> class unique_lock;
     13 
     14 // unique_lock(unique_lock const&) = delete;
     15 
     16 #include <mutex>
     17 #include <cassert>
     18 
     19 int main()
     20 {
     21     {
     22     typedef std::mutex M;
     23     M m;
     24     std::unique_lock<M> lk0(m);
     25     std::unique_lock<M> lk = lk0;
     26     assert(lk.mutex() == &m);
     27     assert(lk.owns_lock() == true);
     28     assert(lk0.mutex() == nullptr);
     29     assert(lk0.owns_lock() == false);
     30     }
     31 }