libstdc++-v3/testsuite/30_threads/packaged_task/cons/alloc.cc

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do run { target { c++11_only || c++14_only } } }
   3 // { dg-additional-options "-pthread" { target pthread } }
   4 // { dg-require-gthreads "" }
   5
   6 // Copyright (C) 2010-2022 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 #include <future>
  24 #include <testsuite_hooks.h>
  25 #include <testsuite_allocator.h>
  26
  27 int f() { return 5; }
  28
  29 void test01()
  30 {
  31   using std::packaged_task;
  32   using std::allocator_arg;
  33   using __gnu_test::uneq_allocator;
  34
  35   uneq_allocator<char> alloc(99);
  36
  37   packaged_task<int ()> p1(allocator_arg, alloc, f);
  38   VERIFY( p1.valid() );
  39   p1();
  40   VERIFY( p1.get_future().get() == 5 );
  41 }
  42
  43 int main()
  44 {
  45   test01();
  46   return 0;
  47 }