Doctor Fortran says “Better SAVE Than Sorry”

In this issue, Dr. Fortran takes on another less-understood feature of the Fortran language, the SAVE attribute.

Back in the “good old days” of Fortran programming, when lowercase letters hadn’t been invented yet and we strung our core memory wires by hand, programmers knew that local variables lived in fixed memory locations and, of course, took advantage of that, writing code such as this:

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