Re: [Nmh-workers] Development Questions. check Programs. register.

[Ralph Corderoy]

Hi,

I wrote:
> Back to ctype.h, can we now assume POSIX

ISTM that the sbr/ctype-checked.h versions assume, wrongly, that
isdigit(EOF) and tolower(EOF) aren't valid, for example, and will index
an array with -1.  We can't increment all the indexes by one as that
will promote a char to int before the index, removing the desired
warning.  Instead, each look-up table can be a private array with a
pointer to its second element, and index that.  Sound OK?

-- 
Cheers, Ralph.
https://plus.google.com/+RalphCorderoy