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#define _BSD_SOURCE
#include <errno.h>
#include <stdlib.h>

void *reallocarray(void *ptr, size_t m, size_t n)
{
	if (n && m > -1 / n) {
		errno = ENOMEM;
		return 0;
	}

	return realloc(ptr, m * n);
}


#ifdef TEST
int
main(void) {
	return 0;
}
#endif