--- Gnu-Mach/kern/strings.c	2020/09/02 04:45:13	1.1.1.2
+++ Gnu-Mach/kern/strings.c	2020/09/02 04:51:57	1.1.1.4
@@ -50,15 +50,15 @@
  *	the contents are identical up to the length of s2.
  *	It returns < 0 if the first differing character is smaller 
  *	in s1 than in s2 or if s1 is shorter than s2 and the
- *	contents are identical upto the length of s1.
+ *	contents are identical up to the length of s1.
  */
 
-int
+int __attribute__ ((pure))
 strcmp(
-	register const char *s1,
-	register const char *s2)
+	const char *s1,
+	const char *s2)
 {
-	register unsigned int a, b;
+	unsigned int a, b;
 
 	do {
 		a = *s1++;
@@ -80,13 +80,13 @@ strcmp(
  *	comparison runs for at most "n" characters.
  */
 
-int
+int __attribute__ ((pure))
 strncmp(
-	register const char *s1,
-	register const char *s2,
+	const char *s1,
+	const char *s2,
 	size_t n)
 {
-	register unsigned int a, b;
+	unsigned int a, b;
 
 	while (n != 0) {
 		a = *s1++;
@@ -113,10 +113,10 @@ strncmp(
 
 char *
 strcpy(
-	register char *to,
-	register const char *from)
+	char *to,
+	const char *from)
 {
-	register char *ret = to;
+	char *ret = to;
 
 	while ((*to++ = *from++) != '\0')
 		continue;
@@ -135,11 +135,11 @@ strcpy(
 
 char *
 strncpy(
-	register char *to,
-	register const char *from,
-	register size_t count)
+	char *to,
+	const char *from,
+	size_t count)
 {
-	register char *ret = to;
+	char *ret = to;
 
 	while (count != 0) {
 		count--;
@@ -157,15 +157,15 @@ strncpy(
 
 /*
  * Abstract:
- *	strlen returns the number of characters in "string" preceeding 
+ *	strlen returns the number of characters in "string" preceding
  *	the terminating null character.
  */
 
-size_t
+size_t __attribute__ ((pure))
 strlen(
-	register const char *string)
+	const char *string)
 {
-	register const char *ret = string;
+	const char *ret = string;
 
 	while (*string++ != '\0')
 		continue;
@@ -184,7 +184,7 @@ memset(
 	void *_s, int c, size_t n)
 {
 	char *s = _s;
-	int i;
+	size_t i;
 
 	for (i = 0; i < n ; i++)
 		s[i] = c;