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* [bug #23681] Function declarators with empty parentheses should not be used
@ 2008-06-23 11:45 Ludovic Courtès
  2010-08-18 13:51 ` Ludovic Courtès
  0 siblings, 1 reply; 4+ messages in thread
From: Ludovic Courtès @ 2008-06-23 11:45 UTC (permalink / raw)
  To: Ludovic Courtès, bug-guile


URL:
  <http://savannah.gnu.org/bugs/?23681>

                 Summary: Function declarators with empty parentheses should
not be used
                 Project: Guile
            Submitted by: civodul
            Submitted on: Monday 06/23/2008 at 11:45
                Category: None
                Severity: 4 - Important
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

Hello,

In Guile 1.8 and earlier, `scm_c_define_gsubr ()', `gh_new_procedure ()' and
related functions take a function pointer as an argument, where the function
type uses empty parentheses (which means that the function can have any
prototype, provided the return type matches).

Function declarators with empty parentheses are not available in C++ [0] and
are an obsolescent feature as of C99 (Section 6.11.6); it also break when
GCC's `-Wstrict-prototypes' option is used [1].  

Therefore, Guile's API should eventually (e.g., in the next major release) be
changed to use a different function pointer type.  Hopefully, the change can
be made almost transparent for applications that use `guile-snarf'.

Thanks,
Ludovic.

[0] http://article.gmane.org/gmane.lisp.guile.user/6613
[1] http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/2118




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^ permalink raw reply	[flat|nested] 4+ messages in thread

* [bug #23681] Function declarators with empty parentheses should not be used
  2008-06-23 11:45 [bug #23681] Function declarators with empty parentheses should not be used Ludovic Courtès
@ 2010-08-18 13:51 ` Ludovic Courtès
  2011-02-13 11:31   ` Ludovic Courtès
  0 siblings, 1 reply; 4+ messages in thread
From: Ludovic Courtès @ 2010-08-18 13:51 UTC (permalink / raw)
  To: Ludovic Courtès, bug-guile


Follow-up Comment #1, bug #23681 (project guile):

This also breaks C++:
http://lists.gnu.org/archive/html/guile-user/2010-07/msg00084.html .

Ludo’.

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Reply to this item at:

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* [bug #23681] Function declarators with empty parentheses should not be used
  2010-08-18 13:51 ` Ludovic Courtès
@ 2011-02-13 11:31   ` Ludovic Courtès
  2011-02-13 13:54     ` Ludovic Courtès
  0 siblings, 1 reply; 4+ messages in thread
From: Ludovic Courtès @ 2011-02-13 11:31 UTC (permalink / raw)
  To: Ludovic Courtès, bug-guile

Update of bug #23681 (project guile):

             Assigned to:                    None => civodul                


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^ permalink raw reply	[flat|nested] 4+ messages in thread

* [bug #23681] Function declarators with empty parentheses should not be used
  2011-02-13 11:31   ` Ludovic Courtès
@ 2011-02-13 13:54     ` Ludovic Courtès
  0 siblings, 0 replies; 4+ messages in thread
From: Ludovic Courtès @ 2011-02-13 13:54 UTC (permalink / raw)
  To: Ludovic Courtès, bug-guile

Update of bug #23681 (project guile):

                  Status:                    None => Fixed                  
             Open/Closed:                    Open => Closed                 

    _______________________________________________________

Follow-up Comment #2:

Fix in commit be90d0b6f9e79bc882b2289bf0a5ea1b3c082b3c.

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  <http://savannah.gnu.org/bugs/?23681>

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^ permalink raw reply	[flat|nested] 4+ messages in thread

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2008-06-23 11:45 [bug #23681] Function declarators with empty parentheses should not be used Ludovic Courtès
2010-08-18 13:51 ` Ludovic Courtès
2011-02-13 11:31   ` Ludovic Courtès
2011-02-13 13:54     ` Ludovic Courtès

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