libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc

   1 // { dg-do run }
   2 // { dg-additional-options "-pthread" { target pthread } }
   3 // { dg-require-effective-target c++11 }
   4 // { dg-require-gthreads "" }
   5
   6 // Copyright (C) 2009-2023 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // Test that promise::set_exception stores an exception.
  24
  25 #include <future>
  26 #include <testsuite_hooks.h>
  27
  28 void test01()
  29 {
  30   bool test = false;
  31
  32   std::promise<int> p1;
  33   std::future<int> f1 = p1.get_future();
  34
  35   VERIFY( f1.valid() );
  36
  37   p1.set_exception(std::make_exception_ptr(0));
  38
  39   try
  40   {
  41     f1.get();
  42   }
  43   catch (int)
  44   {
  45     test = true;
  46   }
  47   VERIFY( test );
  48   VERIFY( !f1.valid() );
  49 }
  50
  51 void test02()
  52 {
  53   bool test = false;
  54
  55   std::promise<int&> p1;
  56   std::future<int&> f1 = p1.get_future();
  57
  58   VERIFY( f1.valid() );
  59
  60   p1.set_exception(std::make_exception_ptr(0));
  61
  62   try
  63   {
  64     f1.get();
  65   }
  66   catch (int)
  67   {
  68     test = true;
  69   }
  70   VERIFY( test );
  71   VERIFY( !f1.valid() );
  72 }
  73
  74 void test03()
  75 {
  76   bool test = false;
  77
  78   std::promise<void> p1;
  79   std::future<void> f1 = p1.get_future();
  80
  81   VERIFY( f1.valid() );
  82
  83   p1.set_exception(std::make_exception_ptr(0));
  84
  85   try
  86   {
  87     f1.get();
  88   }
  89   catch (int)
  90   {
  91     test = true;
  92   }
  93   VERIFY( test );
  94   VERIFY( !f1.valid() );
  95 }
  96
  97 int main()
  98 {
  99   test01();
 100   test02();
 101   test03();
 102   return 0;
 103 }