Re: [PATCH] grep -i: work also when converting to lower-case inflates byte count

[Paul Eggert]

On 06/16/2012 05:34 AM, Jim Meyering wrote:
> -  unsigned char *map = NULL;
> +  char *map = NULL;

This isn't portable, as 'char' is unsigned on some platforms.
Changing it to 'signed char' or to 'int_least8_t'
should fix the problem.  Similarly elsewhere.