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* new function
@ 2021-09-19  7:54 Damien Mattei
  2021-09-19 14:41 ` Matt Wette
  2021-09-19 21:38 ` Taylan Kammer
  0 siblings, 2 replies; 19+ messages in thread
From: Damien Mattei @ 2021-09-19  7:54 UTC (permalink / raw)
  To: guile-devel

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hello,
i'm developing an extension to Scheme
and i need a procedure or macro that define a variable only if it is not
bind and if it is just set! it.

I can not do it in Guile or any Scheme,and i'm desperately searching a way
to do that. I finally conclude that it can be done only by adding it in the
language.

Can someone include a such function in Guile next release?
i know guile have a predicate defined? to test binfing of a vairable but
writing a macro with it is not possible because define can be used in an
expression context.

Thank in advance for any help
Damien

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^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2021-09-24  4:41 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-19  7:54 new function Damien Mattei
2021-09-19 14:41 ` Matt Wette
2021-09-19 14:43   ` Matt Wette
2021-09-19 21:38 ` Taylan Kammer
2021-09-21 12:26   ` Damien Mattei
2021-09-22  8:44   ` Damien Mattei
2021-09-22  9:06     ` William ML Leslie
2021-09-22  9:53       ` Damien Mattei
2021-09-22 18:51         ` Taylan Kammer
2021-09-22 21:52           ` William ML Leslie
2021-09-23  8:40             ` Damien Mattei
2021-09-23 19:03             ` Taylan Kammer
2021-09-23 17:27           ` Damien Mattei
2021-09-23 18:00             ` Maxime Devos
2021-09-23 20:27             ` Taylan Kammer
2021-09-23 20:42               ` Damien Mattei
2021-09-23 20:48               ` Taylan Kammer
2021-09-23 21:53                 ` Damien Mattei
2021-09-24  4:41                   ` Damien Mattei

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