[Newbies] [Q] A really silly question

[Rob Van Pamel]

This is because of the Architecture of Smalltalk ...

It is always so in Smalltalk that you send an message to an object .. 
When you do the following 

b := 0 - a.

You send the message '-' to the object 0. The parameter of the message is A.

These are called binary messages. 
When you have 

b := - a

You don't have an object where you send your message to.
Again like I said before when you do a negated you send the message negated
to the object a. I hope you understand it if you don't ask again and I'll
try to explain better 

Greetz  

-----Oorspronkelijk bericht-----
Van: beginners-bounces at lists.squeakfoundation.org
[mailto:beginners-bounces at lists.squeakfoundation.org] Namens Edgar J. De
Cleene
Verzonden: donderdag 10 mei 2007 19:34
Aan: A friendly place to get answers to even the most basic questions about
Squeak.
Onderwerp: Re: [Newbies] [Q] A really silly question




El 5/10/07 2:22 PM, "Rob Van Pamel" <rob.vanpamel at telenet.be> escribió:

> To get the negative of a value use
> 
> a negated.
> 
> Greetz 
>   Rob 

Yes, I know that.
What I ask is why you could't do b := - a.


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