utils-std

reallocarray.c (539B)

// Copied from musl
// Copyright © 2020 Ariadne Conill <ariadne@dereferenced.org>
// SPDX-License-Identifier: MIT
#define _POSIX_C_SOURCE 202405L
#define _BSD_SOURCE
#include "./reallocarray.h"
#include <errno.h>
#include <stdlib.h>
#ifdef HAS_REALLOCARRAY
void *
utils_reallocarray(void *ptr, size_t m, size_t n)
{
	return reallocarray(ptr, m, n);
}
#else /* HAS_REALLOCARRAY */
void *
utils_reallocarray(void *ptr, size_t m, size_t n)
{
	if(n && m > -1 / n)
	{
		errno = ENOMEM;
		return 0;
	}
	return realloc(ptr, m * n);
}
#endif