838b1ccdd9
For ASCII systems, b36_char_to_int gets compiled into a jump table. That jump table ends up being pretty large because it covers the range from '0' (48) to 'z' (122). On size-constrained systems that can assume ASCII, this patch provides a new flag: LIBC_CONF_CTYPE_SMALLER_ASCII that forces a smaller implementation that doesn't compile into a jump table.
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