extern char *utf8_to_utf16(const char *utf8_str, size_t utf8_len,
size_t *utf16_len_ret);
-extern void randomize_byte_array(void *p, size_t n);
+extern void randomize_byte_array(u8 *p, size_t n);
extern void randomize_char_array_with_alnum(char p[], size_t n);