GNU bug report logs - #41353
'thunk?' documentation is misleading

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Package: guile;

Reported by: Jan Synacek <jsynacek <at> redhat.com>

Date: Sun, 17 May 2020 10:42:01 UTC

Severity: normal

Done: Ludovic Courtès <ludo <at> gnu.org>

Bug is archived. No further changes may be made.

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From: David Kastrup <dak <at> gnu.org>
To: 41353 <at> debbugs.gnu.org
Subject: bug#41353: (thunk? (const 1))
Date: Sun, 17 May 2020 16:08:50 +0200

I think this is more a matter of the documentation being not quite right:

 -- Scheme Procedure: thunk? obj
 -- C Function: scm_thunk_p (obj)
     Return ‘#t’ if OBJ is a thunk—a procedure that does not accept
     arguments.

"if OBJ can serve as a thunk—a procedure called without arguments."

Note that (thunk? (lambda x x)) also returns #t and that ((const 1))
returns 1.

-- 
David Kastrup
This bug report was last modified 5 years and 74 days ago.

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