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      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 // <future>
     11 
     12 // class promise<R>
     13 
     14 // void set_exception(exception_ptr p);
     15 
     16 #include <future>
     17 #include <cassert>
     18 
     19 int main()
     20 {
     21     {
     22         typedef int T;
     23         std::promise<T> p;
     24         std::future<T> f = p.get_future();
     25         p.set_exception(std::make_exception_ptr(3));
     26         try
     27         {
     28             f.get();
     29             assert(false);
     30         }
     31         catch (int i)
     32         {
     33             assert(i == 3);
     34         }
     35         try
     36         {
     37             p.set_exception(std::make_exception_ptr(3));
     38             assert(false);
     39         }
     40         catch (const std::future_error& e)
     41         {
     42             assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied));
     43         }
     44     }
     45 }
     46