return duty pointer nested duty c

as due already states, i'm perplexing announce nested duty relapse pointer function. i wish duty 'not' relapse new duty pointer relapse opposite whatever uncanny duty was.

here i have:

sometype not( sometype uncanny ) {
    int isnot( listentry* opening ) {
        relapse !original( opening );
    }

    sometype resultfunc = calloc( 1024, 1 );
    memcpy( resultfunc, &isnot, 1024 );

    relapse resultfunc;
}

sometype tangible as:

typedef int(*sometype)(listentry* entry)