Fix a few more <ctype.h> instances

A few isolated instances of isalpha() and isxdigit().

1 files changed, 1 insertions, 1 deletions

diff --git a/preproc.c b/preproc.c
index 1489222..4fa0667 100644
--- a/preproc.c
+++ b/preproc.c
@@ -882,7 +882,7 @@ static Token *tokenize(char *line)
 		    while (*r == '_')
 			r++;
 
-		    if (nasm_isdigit(*r) || (is_hex && isxdigit(*r)) ||
+		    if (nasm_isdigit(*r) || (is_hex && nasm_isxdigit(*r)) ||
 			(!is_hex && (*r == 'e' || *r == 'E')) ||
 			(*r == 'p' || *r == 'P')) {
 			p = r;