annotate libstdc++-v3/testsuite/std/time/clock/file/members.cc @ 19:2b5abeee2509 default tip

update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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1 // Copyright (C) 2020 Free Software Foundation, Inc.
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2 //
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3 // This file is part of the GNU ISO C++ Library. This library is free
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4 // software; you can redistribute it and/or modify it under the
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5 // terms of the GNU General Public License as published by the
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6 // Free Software Foundation; either version 3, or (at your option)
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7 // any later version.
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8
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9 // This library is distributed in the hope that it will be useful,
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 // GNU General Public License for more details.
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13
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14 // You should have received a copy of the GNU General Public License along
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15 // with this library; see the file COPYING3. If not see
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16 // <http://www.gnu.org/licenses/>.
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17
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18 // { dg-options "-std=gnu++2a" }
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19 // { dg-do run { target c++2a } }
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20
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21 #include <chrono>
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22 #include <testsuite_hooks.h>
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23
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24 void
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25 test01()
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26 {
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27 auto sys_now = std::chrono::system_clock::now();
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28 auto file_now = std::chrono::file_clock::now();
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29 auto d1 = std::chrono::file_clock::to_sys(file_now) - sys_now;
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30 VERIFY( d1 < std::chrono::seconds(1) );
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31 auto d2 = file_now - std::chrono::file_clock::from_sys(sys_now);
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32 VERIFY( d2 == d1 );
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33 }
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34
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35 int
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36 main()
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37 {
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38 test01();
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39 }