libcxx/test/std/thread/futures/futures.promise/set_exception_at_thread_exit.pass.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-exceptions
  10 // UNSUPPORTED: no-threads
  11 // UNSUPPORTED: c++03
  12
  13 // <future>
  14
  15 // class promise<R>
  16
  17 // void promise::set_exception_at_thread_exit(exception_ptr p);
  18
  19 #include <future>
  20 #include <cassert>
  21
  22 #include "make_test_thread.h"
  23 #include "test_macros.h"
  24
  25 void func(std::promise<int> p)
  26 {
  27     p.set_exception_at_thread_exit(std::make_exception_ptr(3));
  28 }
  29
  30 int main(int, char**)
  31 {
  32     {
  33         typedef int T;
  34         std::promise<T> p;
  35         std::future<T> f = p.get_future();
  36         support::make_test_thread(func, std::move(p)).detach();
  37         try
  38         {
  39             f.get();
  40             assert(false);
  41         }
  42         catch (int i)
  43         {
  44             assert(i == 3);
  45         }
  46     }
  47
  48   return 0;
  49 }