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Re: oops
- To: hanwen at cs dot uu dot nl
- Subject: Re: oops
- From: Jost Boekemeier <jostobfe at linux dot zrz dot TU-Berlin dot DE>
- Date: 06 Jul 2000 22:01:34 +0200
- Cc: guile at sourceware dot cygnus dot com
- References: <14692.56350.191776.886347@dokkum.cs.uu.nl>
Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:
> (What happens if a GUILE function returns SCM_UNDEFINED to the
> interpreter?)
Funny things :). SCM_UNDEFINED means: "(optional) value missing"
while SCM_UNSPECIFIED means: "unspecified value (given)".
SCM_UNDEFINED doesn't make sense on Scheme level. On C level
it plays the same role as NULL does for stdio library calls.
Jost