Antoon Pardon wrote:
Call by value is officially defined in terms of assignment in
a context where assignments means copying and in a definition
of a specifix language.
You can't lift this part out of the definition of algol 60
and say it applies equally well in languages with different
assignment semantics.
But many other language designers, of both static and
dynamic languages, have done just that.
I'm not saying it *has* to be interpreted that way,
just that it *is* very often interpreted that way.
So you can't claim that it's not common usage.
If call by value is defined in terms of assignment regardless
of what the semantics of the assignment is then IMO call by
value is rather useless term
Not at all. It very concisely conveys how parameters
are passed, once you know how assignment works -- and
you need to understand that in any case.
--
Greg
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