test/std/thread/futures/futures.promise/set_exception.pass.cpp

   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 // XFAIL: libcpp-no-exceptions
  11 // UNSUPPORTED: libcpp-has-no-threads
  12 // UNSUPPORTED: c++98, c++03
  13
  14 // <future>
  15
  16 // class promise<R>
  17
  18 // void set_exception(exception_ptr p);
  19
  20 #include <future>
  21 #include <cassert>
  22
  23 int main()
  24 {
  25     {
  26         typedef int T;
  27         std::promise<T> p;
  28         std::future<T> f = p.get_future();
  29         p.set_exception(std::make_exception_ptr(3));
  30         try
  31         {
  32             f.get();
  33             assert(false);
  34         }
  35         catch (int i)
  36         {
  37             assert(i == 3);
  38         }
  39         try
  40         {
  41             p.set_exception(std::make_exception_ptr(3));
  42             assert(false);
  43         }
  44         catch (const std::future_error& e)
  45         {
  46             assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied));
  47         }
  48     }
  49 }