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From: Panicz Maciej Godek <godek.maciek@gmail.com>
To: kawa@sourceware.org
Subject: "void-valued expression where value is needed"
Date: Tue, 20 Sep 2022 23:02:22 +0200	[thread overview]
Message-ID: <CAMFYt2aCMc90b6Mkb0E70sfmOHoipnYAmUJQQkNXYP_Z2ALyiA@mail.gmail.com> (raw)

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Suppose that I have some code like

(define (f)::void
  (call-with-values
      (λ () #!void)
    (λ result
      (apply values result))))

When I compile it, Kawa issues the warning:

void-valued expression where value is needed

I wonder whether this warning is desired in such circumstances?

(It surely makes it difficult to write values-agnostic macros)

What is interesting is that the warning disappears if I replace #!void with
(values) [unless I declare the function's return type as ::void].

             reply	other threads:[~2022-09-20 21:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-20 21:02 Panicz Maciej Godek [this message]
2022-09-20 21:41 ` Arvydas Silanskas

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