Leopold Toetsch <[EMAIL PROTECTED]> wrote:
> 5) infix method signature change:
> METHOD PMC* add( [INTERP, SELF,] PMC* rhs, PMC ´*dest) {
> if (!dest)
> dest = pmc_new(INTERP, SELF->vtable->base_type);
> ...
> return dest;
> }
> If the destination PMC is passed in, it's used else a new PMC of an
> appropriate type is created.
The same scheme should of course be introduced with all the unary prefix
and postfix operators:
METHOD PMC* absolute( [INTERP, SELF,] PMC ´*dest) {
if (PMC_IS_NULL(dest))
dest = pmc_new(INTERP, SELF->vtable->base_type);
VTABLE_set_integer_native(INTERP, dest, abs(PMC_int_val(SELF)));
return dest;
}
and
op abs(out PMC, in PMC)
op n_abs(out PMC, in PMC)
aka
unary "__absolute", Px, Py
unary "__n_absolute", Px, Py
which is the same as:
Px = Py."__absolute"(Px)
Px = Py."__absolute"()
leo
