libstdc++-v3/testsuite/30_threads/future/members/clock_neg.cc

   1 // Copyright (C) 2020-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do compile { target c++20 } }
  19
  20 #include <future>
  21
  22 struct clok
  23 {
  24   // no clok::rep or clok::period defined
  25   using duration = std::chrono::milliseconds;
  26   using time_point = std::chrono::time_point<clok>;
  27   static constexpr bool is_steady = false;
  28   static time_point now();
  29 };
  30
  31 void
  32 test01()
  33 {
  34   std::promise<void> p;
  35   std::future<void> f = p.get_future();
  36   f.wait_until(clok::now()); // { dg-error "here" }
  37 }
  38
  39 struct cloc
  40 {
  41   using duration = std::chrono::milliseconds;
  42   using rep = duration::rep;
  43   using period = duration::period;
  44   // cloc::time_point::duration should be the same as cloc::duration:
  45   using time_point = std::chrono::time_point<cloc, std::chrono::seconds>;
  46   static constexpr bool is_steady = false;
  47   static time_point now();
  48 };
  49
  50 void
  51 test02()
  52 {
  53   std::promise<void> p;
  54   std::future<void> f = p.get_future();
  55   f.wait_until(cloc::now()); // { dg-error "here" }
  56 }
  57
  58 // { dg-error "static assertion failed" "" { target *-*-* } 0 }