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In addition, the larger the scope of an identifier the more descriptive should be its name. It may be perfectly appropriate to name a loop control variable i but the same name would likely be confusing if it named a file scope object or a variable local to a function more than a few lines long. See also DCL01-C. Do not reuse variable names in subscopes and DCL19-C. Use as minimal a scope as possible for all variables and functions.
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