diff --git a/xtandard.c b/xtandard.c
index dd1110c..b036c94 100644
--- a/xtandard.c
+++ b/xtandard.c
@@ -465,7 +465,7 @@ int character_is_alpha (char character) {
 int character_is_symbol (char character) {
 	char * symbols = "~!@#$%^&*()+{}|:\"<>?`-=[]\\;',./";
 
-	return (character_compare_array (character, symbols, string_length (symbols)));
+	return (character_compare_array (character, symbols));
 }
 
 int character_is_visible (char character) {
@@ -487,17 +487,17 @@ int character_is_underscore (char character) {
 int character_is_hexadecimal (char character) {
 	char * hexadecimals = "0123456789ABCDEF";
 
-	return (character_compare_array (character, hexadecimals, string_length (hexadecimals)));
+	return (character_compare_array (character, hexadecimals));
 }
 
-int character_compare_array (char character, char * character_array, int count) {
+int character_compare_array (char character, char * character_array) {
 	int i = 0;
 
 	do {
 		if (character == character_array [i]) {
 			return (1);
 		}
-	} while (++i != count);
+	} while (++i != string_length (character_array));
 
 	return (0);
 }
diff --git a/xtandard.h b/xtandard.h
index fb8b6c4..d8f8aab 100644
--- a/xtandard.h
+++ b/xtandard.h
@@ -117,7 +117,7 @@ extern int character_is_escape      (char);
 extern int character_is_underscore  (char);
 extern int character_is_hexadecimal (char);
 
-extern int character_compare_array (char, char *, int);
+extern int character_compare_array (char, char *);
 
 extern int  string_length  (char *);
 extern void string_reverse (char *);