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/* Public domain. */
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#pragma redefine_extname __atomic_is_lock_free_c __atomic_is_lock_free
bool
__atomic_is_lock_free_c(size_t size, void *ptr)
{
switch (size) {
case 1:
return true;
case 2:
return (((uintptr_t)ptr & 1) == 0);
case 4:
return (((uintptr_t)ptr & 3) == 0);
}
return false;
}
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