@@ -1044,11 +1044,11 @@
  * 	       string starts with 0x (after stripping white spaces). If the
  * 	       string starts with 0, base 8 is assumed. Otherwise, base 10 is
  * 	       assumed.
  * @return The value of the string in the specified base
  */
-- (long long)longLongValueWithBase: (int)base;
+- (long long)longLongValueWithBase: (unsigned char)base;
 
 /**
  * @brief The value of the string in the specified base as an
  *	  `unsigned long long`.
  *
@@ -1064,11 +1064,11 @@
  * 	       string starts with 0x (after stripping white spaces). If the
  * 	       string starts with 0, base 8 is assumed. Otherwise, base 10 is
  * 	       assumed.
  * @return The value of the string in the specified base
  */
-- (unsigned long long)unsignedLongLongValueWithBase: (int)base;
+- (unsigned long long)unsignedLongLongValueWithBase: (unsigned char)base;
 
 /**
  * @brief Creates a new string by appending another string.
  *
  * @param string The string to append