Imports in definition and implementation modules

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1 total messages Started by fred sullivan Wed, 07 Oct 1987 13:37

#3877

Author: fred sullivan
Date: Wed, 07 Oct 1987 13:37

20 lines
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As I promised some time ago, I wrote to N. Wirth to ask whether
identifiers imported into the definition module should be known in the
implementation module, or should be reimported.

His answer follows:

"Concerning your question about imports in definition modules, I have
been of the opinion that the corresponding implementation module adopts
those identifiers (and associated data) that are declared in the
definition module itself, but no more.  In this case, it is indeed
necessary to import client modules again in the implementation module,
if identifiers declared in it are referenced."

I yield.

Fred Sullivan
Department of Mathematical Sciences
State University of New York at Binghamton
Binghamton, New York  13903
Email: sullivan@marge.math.binghamton.edu

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