mirror of
https://github.com/mstorsjo/llvm-mingw
synced 2026-06-21 14:01:00 +00:00
Martin Storsjö
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
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* Copyright (c) 2023 Martin Storsjo
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*
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* This file is part of llvm-mingw.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdatomic.h>
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struct large {
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int data[20];
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};
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typedef struct large type;
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_Atomic type value;
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type get(void) {
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return atomic_load(&value);
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}
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type myValue;
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int lockfree;
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int main(int argc, char* argv[]) {
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myValue = get();
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lockfree = atomic_is_lock_free(&value);
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return 0;
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}
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