Re: Looking for volunteers for XL

On 29 marras, 00:12, Christophe de Dinechin <christo...@taodyne.com>
wrote:
>
> > The other kind of extensibility I know about is operator overloading,
> > where the problems are well-known; the expression A+B could
> > conceivably mean anything, instead of being restricted to a small set
> > of predefined types.
>
> This argument was made a long time ago byBertrand Meyerin a very
> articulate article, see
> http://se.ethz.ch/~meyer/publications/joop/overloading.pdf.
>
> While the article is very well written, I totally disagree with Meyer
> on this (even though I respect him a lot as a language designer). Why?
> Because I can't even think of using a programming language where I
> need to write "1 + 2" for integer addition, and something different
> like "1.3 +. 4.2" for floating-point addition.


This is not the case with Eiffel. The addition operator for both
integer and floating is "+". This is not a case of operator
overloading in pure object oriented setting of Eiffel, since the
operator appears in two different classes: integer and floating. An
example of overloading would be "+" appearing twice with different
signatures in the integer class.


br Jussi

Return to the comp.compilers page.
Search the comp.compilers archives again.