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  • From: "Michael Kay" <mike@s...>
  • To: "'David'" <dlee@c...>,<xml-dev@l...>
  • Date: Wed, 24 Mar 2010 14:43:16 -0000

> I disagree that this specifies the order of execution.
> 
> >>  example 3: for i in 1..length(array) yield function(a[i])
> 
> The results must be in order but the execution need not.
> 

Well, that depends on the semantics of the language in which it's written,
which we don't know. Many procedural languages have syntax a bit like this,
and allow function() to have side-effects such as changing global variables,
and in such a case it's quite plausible that the language semantics would
require sequential execution. On the other hand many functional languages
also have similar constructs, and don't allow function() to have
side-effects, and don't mandate sequential execution.

Regards,

Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay 



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