Function repeat_pattern

src/yes.c:65–76

   doubling the copy size each iteration.  DEST may equal SRC.  */

static void
repeat_pattern (char *dest, char const *src, idx_t srcsize, idx_t bufsize)
{
  if (dest != src)
    memcpy (dest, src, srcsize);
  for (idx_t filled = srcsize; filled < bufsize; )
    {
      idx_t chunk = MIN (filled, bufsize - filled);
      memcpy (dest + filled, dest, chunk);
      filled += chunk;
    }
}

#if HAVE_SPLICE