/* How many bytes it will take to store LEN bytes in base64. */
#define BASE64_LENGTH(len) (4 * (((len) + 2) / 3))
-int base64_encode (const char *, int, char *);
-int base64_decode (const char *, char *);
+int base64_encode (const void *, int, char *);
+int base64_decode (const char *, void *);
void stable_sort (void *, size_t, size_t, int (*) (const void *, const void *));