ftp://www.digitalmars.com/dmdalpha.zip

www.digitalmars.com/d/operatoroverloading.html

It doesn't do all the operators yet, but it's a start.

-Walter

Great Job!

"Walter" <walter@digitalmars.com> wrote in message news:ajq4fo$311i$1@digitaldaemon.com...
> ftp://www.digitalmars.com/dmdalpha.zip
>
> www.digitalmars.com/d/operatoroverloading.html
>
> It doesn't do all the operators yet, but it's a start.
>
> -Walter
>
>

I don't understand point 4.

"4. If a or b is a struct or class object reference, it is an error. "

Do you mean?

"4. If a and b is a struct or class object reference, it is an error. "

If so do you plan on making class by class operations overloadable in a future?

Can you add an example for 4.?

"Walter" <walter@digitalmars.com> wrote in message news:ajq4fo$311i$1@digitaldaemon.com...
> ftp://www.digitalmars.com/dmdalpha.zip
>
> www.digitalmars.com/d/operatoroverloading.html
>
> It doesn't do all the operators yet, but it's a start.
>
> -Walter
>
>

I believe that 4 is a fall-through if options 1-3 fail.  If you've tried to use an operator, and the classes offer no way to relate them, then it is an error.

anderson wrote:

> I don't understand point 4.
>
> "4. If a or b is a struct or class object reference, it is an error. "
>
> Do you mean?
>
> "4. If a and b is a struct or class object reference, it is an error. "
>
> If so do you plan on making class by class operations overloadable in a future?
>
> Can you add an example for 4.?
>
> "Walter" <walter@digitalmars.com> wrote in message news:ajq4fo$311i$1@digitaldaemon.com...
> > ftp://www.digitalmars.com/dmdalpha.zip
> >
> > www.digitalmars.com/d/operatoroverloading.html
> >
> > It doesn't do all the operators yet, but it's a start.
> >
> > -Walter
> >
> >

--
The Villagers are Online! villagersonline.com

.[ (the fox.(quick,brown)) jumped.over(the dog.lazy) ]
.[ (a version.of(English).(precise.more)) is(possible) ]
?[ you want.to(help(develop(it))) ]

Very good!  Now, on to the op= operators...since they are often much faster and memory efficient to implement :)

In fact, in my mathematical classes in C++, I would often implement op as derived from op= .  I would create a temporary copy of an object, use the op= function on that, and then return the temporary...

Walter wrote:

> ftp://www.digitalmars.com/dmdalpha.zip
>
> www.digitalmars.com/d/operatoroverloading.html
>
> It doesn't do all the operators yet, but it's a start.
>
> -Walter

--
The Villagers are Online! villagersonline.com

.[ (the fox.(quick,brown)) jumped.over(the dog.lazy) ]
.[ (a version.of(English).(precise.more)) is(possible) ]
?[ you want.to(help(develop(it))) ]

The neat thing is it turned out to be an amazingly small amount of code added to the source. -Walter

"anderson" <anderson@firestar.com.au> wrote in message news:ajqtvc$rg0$1@digitaldaemon.com...
> Great Job!
>
> "Walter" <walter@digitalmars.com> wrote in message news:ajq4fo$311i$1@digitaldaemon.com...
> > ftp://www.digitalmars.com/dmdalpha.zip
> >
> > www.digitalmars.com/d/operatoroverloading.html
> >
> > It doesn't do all the operators yet, but it's a start.
> >
> > -Walter
> >
> >
>
>

"Russ Lewis" <spamhole-2001-07-16@deming-os.org> wrote in message news:3D611181.FE5B9F74@deming-os.org...
> I believe that 4 is a fall-through if options 1-3 fail.  If you've tried
to
> use an operator, and the classes offer no way to relate them, then it is
an
> error.

That's right.

Walter wrote:

> ftp://www.digitalmars.com/dmdalpha.zip
>
> www.digitalmars.com/d/operatoroverloading.html
>
> It doesn't do all the operators yet, but it's a start.
>
> -Walter

I don't think it gets much simpler than that. I agree with anderson, good job!

-Jon

What happened to the nice Vector operator (Vector a) + (Vector b) {} syntax everyone was voting for?  You figured out a way around the friend problem. Some things just don't properly belong in either class and should be sorta global.

Sean

"Walter" <walter@digitalmars.com> wrote in message news:ajq4fo$311i$1@digitaldaemon.com...
> ftp://www.digitalmars.com/dmdalpha.zip
>
> www.digitalmars.com/d/operatoroverloading.html
>
> It doesn't do all the operators yet, but it's a start.
>
> -Walter

"where a is a class or struct object reference..."
Did I miss something or are we getting concrete types (in C++ parlance) as well?
All the examples show class and not struct so--maybe not yet?