MPC*	    T_OBJECT
MPC_data*   T_OBJECT
long long   T_LONGLONG
const char* T_PV

OUTPUT
T_OBJECT
    sv_setref_pv( $arg, CLASS, (void*)$var );

INPUT
T_OBJECT
    if( sv_isobject($arg) && (SvTYPE(SvRV($arg)) == SVt_PVMG) ) 
	    $var = ($type)SvIV((SV*)SvRV( $arg ));
    else{
	    warn( \"${Package}::$func_name() -- $var is not a blessed SV reference\" );
	    XSRETURN_UNDEF;
    }

T_LONGLONG
    $var = (long long)longlong($arg);