Hello, In xentools, we have patches like - if (tolower(*s) != tolower(*se)) + if (tolower((unsigned char)*s) != tolower((unsigned char)*se))
(s and se being char*) This is to fix «array subscript has type 'char' [-Werror=char-subscripts]» I submitted this to Xen, and a developper asks: > Isn't this something that wants changing in your ctype.h instead? > the functions (or macros), as per the C standard, ought to accept > plain char aiui, and if they use the input as an array subscript, > it should be their implementation suitably converting type first. Any comment about this ? I'm not familiar with these details ... -- Manuel Bouyer <bou...@antioche.eu.org> NetBSD: 26 ans d'experience feront toujours la difference --