preserve const'ness of some casts

ChangeLog

@@ -1,3 +1,8 @@
+2012-02-06  Robert Larice
+ * src/frontend/vectors.c ,
+ * src/misc/wlist.c :
+   preserve const'ness of some casts
+
 2012-02-06  Robert Larice
  * src/frontend/numparam/spicenum.c :
    drop (void*) cast of the dispose() argument

src/frontend/vectors.c

@@ -145,8 +145,8 @@ namecmp(const void *a, const void *b)
 {
     int i, j;
 
-    char *s = (char *) a;
-    char *t = (char *) b;
+    const char *s = (const char *) a;
+    const char *t = (const char *) b;
     for (;;) {
         while ((*s == *t) && !isdigit(*s) && *s)
             s++, t++;

src/misc/wlist.c

@@ -228,8 +228,8 @@ wl_nthelem(int i, wordlist *wl)
 static int
 wlcomp(const void *a, const void *b)
 {
-    char **s = (char **) a;
-    char **t = (char **) b;
+    const char **s = (const char **) a;
+    const char **t = (const char **) b;
     return (strcmp(*s, *t));
 }