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44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* Test of once-only execution in multithreaded situations.
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Copyright (C) 2018-2026 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2018. */
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#include <config.h>
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#include <threads.h>
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#include "macros.h"
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static once_flag a_once = ONCE_FLAG_INIT;
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static int a;
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static void
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a_init (void)
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{
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a = 42;
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}
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int
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main ()
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{
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call_once (&a_once, a_init);
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ASSERT (a == 42);
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return test_exit_status;
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}
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