In this post, you’ll learn more about the Oracle ErrorPCC-02305: illegal mixing of new and old style C function declarations with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
PCC-02305: illegal mixing of new and old style C function declarations
Reason for the Error PCC-02305: illegal mixing of new and old style C function declarations
Cause: All C functions using either the traditional style (K&R style) function declarations or the new (ANSI) style must be declared; the two styles cannot be mixed.
How to fix the Error PCC-02305: illegal mixing of new and old style C function declarations ?
You can fix this error in Oracle by following the below steps
Action: Adopt a consist declaration style for functions.