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Re: GRM questions
From: |
Marius Vollmer |
Subject: |
Re: GRM questions |
Date: |
25 Jun 2001 02:38:44 +0200 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.0.102 |
Dirk Herrmann <address@hidden> writes:
> OK, so we should probably use the following set of names:
>
> SCM_SMOB_WORD_[1-3]
> SCM_SMOB_OBJECT_[1-3]
Agreed.
> However, I am not sure about the SCM_SMOB_SCRAP suggestion.
> Alternatively, one could simply use SCM_SMOB_WORD_0 and have that
> macro mask out the relevant bits. On the other hand, whoever works
> with smobs must have at least a basic understanding of guile's type
> system anyway.
Yes, and they need to know exactly how big the scrap pad is as well,
so there is probably even a need to abstract away things like the 16
in "x << 16".
> Thus, the restriction to only use the upper bits of the smob does
> not seem too important. In this case, a macro SCM_SMOB_WORD_0
> should also be introduced, but it wouldn't need to do any bit magic.
Agreed.