* call/cc oddness
@ 2009-09-17 14:25 Bill Schottstaedt
2009-09-17 17:49 ` Neil Jerram
0 siblings, 1 reply; 2+ messages in thread
From: Bill Schottstaedt @ 2009-09-17 14:25 UTC (permalink / raw)
To: bug-guile
Is this a bug?
scheme@(guile-user)> (call/cc (lambda (a . b) (a 1)))
1
scheme@(guile-user)> (call/cc (lambda arg ((car arg) 1)))
1
scheme@(guile-user)> (call/cc (lambda (a b) (a 1)))
ERROR: Wrong number of arguments to #<program 8bf5330 at standard input:3:9 (a b)>
r5rs.html and r6rs.html say "Proc must be a procedure of one argument" -- perhaps
ambiguous?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: call/cc oddness
2009-09-17 14:25 call/cc oddness Bill Schottstaedt
@ 2009-09-17 17:49 ` Neil Jerram
0 siblings, 0 replies; 2+ messages in thread
From: Neil Jerram @ 2009-09-17 17:49 UTC (permalink / raw)
To: Bill Schottstaedt; +Cc: bug-guile
"Bill Schottstaedt" <bil@ccrma.Stanford.EDU> writes:
> Is this a bug?
I'd say not. It looks like a useful generalization.
> scheme@(guile-user)> (call/cc (lambda (a . b) (a 1)))
> 1
> scheme@(guile-user)> (call/cc (lambda arg ((car arg) 1)))
> 1
> scheme@(guile-user)> (call/cc (lambda (a b) (a 1)))
> ERROR: Wrong number of arguments to #<program 8bf5330 at standard input:3:9 (a b)>
>
> r5rs.html and r6rs.html say "Proc must be a procedure of one argument" -- perhaps
> ambiguous?
Whereas what we implement is "Proc must be a procedure that can accept a
single argument".
Neil
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