256 	int	c1, c2;  in scan_hex_byte()  local
264 	c2 = scanc();  in scan_hex_byte()
265 	if (!isxdigit(c2)) {  in scan_hex_byte()
269 	v = ((hex(c1) << 4) | hex(c2));  in scan_hex_byte()
276 	int	c1, c2, c3;  in scan_dec_byte()  local
285 	c2 = scanc();  in scan_dec_byte()
286 	if (!isdigit(c2)) {  in scan_dec_byte()
291 	b += (c2 - '0');  in scan_dec_byte()
305 	int c1, c2, c3;  in scan_oct_byte()  local
316 	c2 = scanc();  in scan_oct_byte()
317 	if (!isodigit(c2)) {  in scan_oct_byte()
322 	b += (c2 - '0');  in scan_oct_byte()