optimized a bit

lang/cem/libcc.ansi/string/memcpy.c

@@ -7,7 +7,7 @@
 #include	<string.h>
 
 void *
-memcpy(register void *s1, register const void *s2, register size_t n)
+memcpy(void *s1, const void *s2, register size_t n)
 {
 	register char *p1 = s1;
 	register const char *p2 = s2;

lang/cem/libcc.ansi/string/strcat.c

@@ -7,9 +7,9 @@
 #include	<string.h>
 
 char *
-strcat(register char *s1, register const char *s2)
+strcat(char *ret, register const char *s2)
 {
-	char *ret = s1;
+	register char *s1 = ret;
 
 	while (*s1++ != '\0')
 		/* EMPTY */ ;

lang/cem/libcc.ansi/string/strcpy.c

@@ -7,9 +7,9 @@
 #include	<string.h>
 
 char *
-strcpy(register char *s1, register const char *s2)
+strcpy(char *ret, register const char *s2)
 {
-	char *ret = s1;
+	register char *s1 = ret;
 
 	while (*s1++ = *s2++)
 		/* EMPTY */ ;

lang/cem/libcc.ansi/string/strlen.c

@@ -7,9 +7,9 @@
 #include	<string.h>
 
 size_t
-strlen(register const char *s)
+strlen(const char *org)
 {
-	const char *org = s;
+	register const char *s = org;
 
 	while (*s++)
 		/* EMPTY */ ;

lang/cem/libcc.ansi/string/strncat.c

@@ -7,9 +7,9 @@
 #include	<string.h>
 
 char *
-strncat(register char *s1, register const char *s2, size_t n)
+strncat(char *ret, register const char *s2, size_t n)
 {
-	char *ret = s1;
+	register char *s1 = ret;
 
 	if (n <= 0)
 		return s1;

lang/cem/libcc.ansi/string/strncpy.c

@@ -7,9 +7,9 @@
 #include	<string.h>
 
 char *
-strncpy(register char *s1, register const char *s2, size_t n)
+strncpy(char *ret, register const char *s2, size_t n)
 {
-	char *ret = s1;
+	register char *s1 = ret;
 
 	while (*s2 && n > 0) {
 		n--;

lang/cem/libcc.ansi/string/strxfrm.c

@@ -7,9 +7,9 @@
 #include	<string.h>
 
 size_t
-strxfrm(register char *s1, register const char *s2, register size_t n)
+strxfrm(register char *s1, register const char *save, register size_t n)
 {
-	const char *save = s2;
+	register const char *s2 = save;
 
 	while (*s2) {
 		if (n > 1) {