MIN_NEEDED_INPUT
#ifndef MIN_NEEDED_INPUT
#elif MIN_NEEDED_INPUT < 1
# define MAX_NEEDED_INPUT MIN_NEEDED_INPUT
if (MIN_NEEDED_INPUT > 1
&& __builtin_expect (inptr + MIN_NEEDED_INPUT > inend, 0))
&& MIN_NEEDED_INPUT != 1 && MAX_NEEDED_INPUT % MIN_NEEDED_INPUT == 0 \
if (__builtin_expect (inptr + (MIN_NEEDED_INPUT - inlen) > inend, 0))