Is there a technical reason why that piece of DWIMmery would be considered harmful at some edge case?
I can think of one. Whether it is right or not is another matter :)
There would be times when you wanted to return to your position in the hash.
If the iterator (or hashkey pointer) was reset everytime the program left a control loop, you would have to save it in a variable and then restore it each time you went into another control structure.
I don't see this as being a bad thing - other languages do it like this. I also don't know why it wasn't done this way rather than the way it currently is.
Having said that, I have found this to be a problem before, but some careful data structure design worked around it just fine.
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Jeremy
I didn't believe in evil until I dated it.
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