GNU bug report logs -
#18299
Analyzer issues warning with ~:p expansion of ‘format’
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bug#18299
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(Wed, 20 Aug 2014 12:31:02 GMT)
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Frank Terbeck <ft <at> bewatermyfriend.org>
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(Wed, 20 Aug 2014 12:31:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
Hello Guile developers,
I was trying this:
(use-modules (ice-9 format))
(format #t "~d block~:p~%" 1) ;; and 0, and 2 etc...
This triggers a warning about the format-string argument count:
;;; <stdin>:3:0: warning: "~d block~:p~%": wrong number of `format'
arguments: expected 2, got 1
The manual says this about "~:p":
~:p re-uses the preceding argument instead of taking a new
one, which can be convenient when printing some sort of count.
(format #t "~d cat~:p" 9) ⊣ 9 cats
(format #t "~d pupp~:@p" 5) ⊣ 5 puppies
I was looking at the code, and it appears that the warning is triggered
in "module/language/tree-il/analyze.scm" in ‘format-analysis’ and more
precisely in ‘check-format-args’, due to the lack of support for "~:p"
and presumably "~:@p" in ‘format-string-argument-count’.
Regards, Frank
--
In protocol design, perfection has been reached not when there is
nothing left to add, but when there is nothing left to take away.
-- RFC 1925
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ludo <at> gnu.org (Ludovic Courtès)
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You have taken responsibility.
(Tue, 26 Aug 2014 21:43:02 GMT)
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Frank Terbeck <ft <at> bewatermyfriend.org>
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bug acknowledged by developer.
(Tue, 26 Aug 2014 21:43:03 GMT)
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Message #10 received at 18299-done <at> debbugs.gnu.org (full text, mbox):
Frank Terbeck <ft <at> bewatermyfriend.org> skribis:
> I was trying this:
>
> (use-modules (ice-9 format))
> (format #t "~d block~:p~%" 1) ;; and 0, and 2 etc...
>
> This triggers a warning about the format-string argument count:
>
> ;;; <stdin>:3:0: warning: "~d block~:p~%": wrong number of `format'
> arguments: expected 2, got 1
I believe commit 8ac39b3 fixes it. It will be in 2.0.12.
Thanks!
Ludo’.
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(Wed, 24 Sep 2014 11:24:04 GMT)
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This bug report was last modified 9 years and 215 days ago.
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