Excellent reply. Although I'd like to say that:
You should always avoid globals at all costs; it's just bad programming in any language.
Is wrongheadedness like most blanket statements in programming ("never use a goto!" "always enter loops at the top and exit at the bottom!" etc..).

You should avoid globals<super>*</super> wherever possible, but not go through great pains and contortions to do so. Sometimes they're more appropriate than passing parameters to every function in a system to handle every possible need that may require them. For our C programmer, errno is an example where having a variable that has a "global" scope is much more appropriate than having every function which might do I/O receive it (or a pointer) as a parameter and pass it around during exception handling.

<super>*</super>I'm including file-scoped lexicals and package variables in this category and not the ${special_character} variables. Those, for the most part, are evil.

In reply to Re: Re: Help - I'm a C programmer by clintp
in thread Help - I'm a C programmer by june_bo

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