It wasn't in a void context. It was a scalar context :)

That said, I'm still in two minds as to whether the 'map in a void context' problem is still a problem any more as (I believe) the main practical reason for not doing it was the inefficiency caused by building the return list only for it to be discarded. Since map now tests for context and doesn't bother building the list if in a void context, the reasons now seem esoteric/style related rather than practical. I agree that in most cases a for loop or modifier is better, but if you need to use a second modifier, map lends itself to the purpose. I wouldn't use it often, but I'm still undecided whether a blanket ban is called for.

As for the File::Find and related calls. I have a (probably irrational) phobia about them, and it's not only to do with performance. I dislike their callback method of working, and their reliance upon global vars amongst other things. For example, the anonymous sub in your example is being called (many times) in a void context and the (unavoidable) return value is being discarded. How is this different from calling map in a void context?

This really is "language lawyer" type stuff, but I seriously would appreciate your reaction/interpretation as I know you have made a point of studying many issues of this type.

I'd also like to understand your (though that's not as bad on Win32) comment. How/why is this different for Win32 as compared to other OS's? I've racked my brains to see what you mean, but the significance escapes me?

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller

In reply to Re: Re^4: Out of memory. by BrowserUk
in thread Out of memory. by blackadder

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