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The construct local defines variables which are local(private) to a particular function
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For example the routine on following foil invoked by
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@new = &bigger_than(100,@list);
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Returns in @new all entries in @list which are bigger than 100.
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local() is an executable statement -- not a declaration!
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The first two statements in bigger_than can be replaced by:
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local($test,@values) = @_; # local() returns an assignable list
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In Perl5, my tends to eplace local as my scope confined to routine but local extends scope to any function called from block in which local statement defined
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Note can use my/local in any block (not just a function) enclosed in { ... } to define temporary variables of limited scope
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