-/* Return true iff the buffer is all zero bytes.
- *
- * Note that gcc is smart enough to optimize this properly:
- * http://stackoverflow.com/questions/1493936/faster-means-of-checking-for-an-empty-buffer-in-c/1493989#1493989
- */
-static int
-is_zero (const char *buffer, size_t size)
-{
- size_t i;
-
- for (i = 0; i < size; ++i) {
- if (buffer[i] != 0)
- return 0;
- }
-
- return 1;
-}
-