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scm_divide and division by zero inconsistency.

To: Guile Mailing List <guile at sourceware dot cygnus dot com>
Subject: scm_divide and division by zero inconsistency.
From: Dirk Herrmann <dirk at ida dot ing dot tu-bs dot de>
Date: Tue, 2 May 2000 15:38:31 +0200 (MEST)

Hi!

I discovered the following inconsistency with scm_divide:

guile> (/ 1 0)
--> +#.#
guile> (/ (expt 2 100) 0)
ERROR: In procedure / in expression (/ (expt 2 100) 0):
ERROR: Numerical overflow
ABORT: (numerical-overflow)

Bignums are treated differently here.  I think that the behaviour should
be consistent, and personally I favor the numerical-overflow variant over
the variant to return infinity or not-a-number or whatever.

What do others think?

Best regards
Dirk Herrmann

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