Subversion Repositories openrisc

// { dg-do assemble  }

template  inline STRUCT *

setback(MEMBER *bp, MEMBER STRUCT::*offset)

{

        // The implementation of this function may be platform dependend

        if(!bp) return 0; // NULL pointers remain NULL

        union { int i; MEMBER STRUCT::*of; } u; // Switch types. Casting won't work.

        u.of = offset;

        return (STRUCT *) ((int) bp - u.i);

}