src/usr.bin/diff/xmalloc.c - diff

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version 1.5, 2015/02/05 12:59:57

version 1.6, 2015/04/29 04:00:25

Line 52

}

void *

xrealloc(void *ptr, size_t nmemb, size_t size)

xreallocarray(void *ptr, size_t nmemb, size_t size)

{

void *new_ptr;

size_t new_size = nmemb * size;

if (new_size == 0)

new_ptr = reallocarray(ptr, nmemb, size);

errx(2, "xrealloc: zero size");

if (SIZE_MAX / nmemb < size)

errx(2, "xrealloc: nmemb * size > SIZE_MAX");

if (ptr == NULL)

new_ptr = malloc(new_size);

else

new_ptr = realloc(ptr, new_size);

if (new_ptr == NULL)

err(2, NULL);

return new_ptr;