/* Stub implementation of (obsolete) rindex(). */
-extern char *strrchr ();
+/*
+
+@deftypefn Supplemental char* rindex (const char *@var{s}, int @var{c})
+
+Returns a pointer to the last occurrence of the character @var{c} in
+the string @var{s}, or @code{NULL} if not found. The use of @code{rindex} is
+deprecated in new programs in favor of @code{strrchr}.
+
+@end deftypefn
+
+*/
+
+extern char *strrchr (const char *, int);
char *
-rindex (s, c)
- char *s;
- int c;
+rindex (const char *s, int c)
{
return strrchr (s, c);
}