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Merge pull request #12 from iamleot/cc_func-avoid-undefined-behaviour

Avoid undefined behaviour when using ctype(3) functions in relex() (possible fix for #11)

--- a/b.c

+++ b/b.c

@@ -27,6 +27,7 @@

 #define	DEBUG

 #include <ctype.h>

+#include <limits.h>

 #include <stdio.h>

 #include <string.h>

 #include <stdlib.h>

@@ -831,7 +832,7 @@

 					 * not without first adapting the entire

 					 * program to track each string's length.

 					 */

-					for (i = 1; i < NCHARS; i++) {

+					for (i = 1; i <= UCHAR_MAX; i++) {

 						if (!adjbuf((char **) &buf, &bufsz, bp-buf+1, 100, (char **) &bp, "relex2"))

 						    FATAL("out of space for reg expr %.10s...", lastre);

 						if (cc->cc_func(i)) {

-- 

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