OpenEuphoria

Re: case and foreach

• Posted by Tommy Carlier <tommy.carlier at telenet.be> Mar 31, 2005
• 549 views

codepilot Gmail Account wrote:
> Pros
> I think foreach could be used to add some parallelism to euphoria and
> simplify a few things that for loops and subscripting are used for.
> Case would be good for simplifying if/elsif/else blocks to a more
> manageable level and could also help in optimization.
> 
> Cons
> Does anyone have something against case or foreach(element in a
> sequence) in euphoria?

I also think foreach would be a great advantage. It doesn't only allow
for cleaner code, but could also greatly enhance performance by optimization:
compare these 2 equivalent pieces of code:
1:
sequence s = ...
object x
for i = 1 to length(s) do
    x = s[i]
    ...
end for
2:
sequence s = ...
foreach x in s do
    ...
end foreach

Using foreach, you can eliminate the index checking (1 <= i <= length(s)).
One suggestion: you can perfectly use the 'for' keyword, instead of adding
a new keyword 'foreach'. Example:
for x in s do
    ...
end for

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