Re: Evaluation order, assignment order

[roberto@... (Roberto Ierusalimschy)]

> IIRC Scheme (which, sadly, has side effects) says something like:  
> there is a sequential order of evaluation for arguments, but which  
> one is chosen is not defined (and it's not necessarily even  
> consistent across different runs of the same program or even the same  
> source code function call executed at different times within the same  
> program).

The point is that you cannot evaluate two arguments "in parallel".
Harbison & Steele[1] say something similar for ANSI C, but I could not
find this in the standard. Lua should also respect that restriction.


[1] Samuel Harbison & Guy Steele Jr. C - A Reference Manual (4th edition).
Prentice-Hall, 1995. page 228.


-- Roberto