That may be the case with Fortran 77 and later versions, but I was referring to Fortran II and Fortran IV.
If you put the local variables into a stack, it would break quite a lot old Fortran programs (including some widely used library code) that assume that the local variable values are maintained between calls.
Paul
I just said the standard doesn't preclude reentrancy.
Since the standard doesn't define the behavior, different programs written for different implementations may rely on the behavior of a particular implementation.
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