Gtkmm-forge Digest, Vol 8, Issue 5
- From: gtkmm-forge-request lists sourceforge net
- To: gtkmm-forge lists sourceforge net
- Subject: Gtkmm-forge Digest, Vol 8, Issue 5
- Date: Sat, 06 Jan 2007 12:20:33 -0800
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Today's Topics:
1. [Bug 392950] Wrapper Class For GTimer missing
(glibmm (bugzilla.gnome.org))
2. [Bug 392950] Wrapper Class For GTimer missing
(glibmm (bugzilla.gnome.org))
3. [Bug 391907] Glib::Error::throw_exception() doesn't return
Glib::Error instance in --disable-api-exceptions mode
(glibmm (bugzilla.gnome.org))
4. [Bug 393571] New: option parser ignores default values
(glibmm (bugzilla.gnome.org))
5. [Bug 393571] option parser ignores default values
(glibmm (bugzilla.gnome.org))
6. [Bug 391907] Glib::Error::throw_exception() doesn't return
Glib::Error instance in --disable-api-exceptions mode
(glibmm (bugzilla.gnome.org))
----------------------------------------------------------------------
Message: 1
Date: Fri, 5 Jan 2007 20:57:06 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 392950] Wrapper Class For GTimer
missing
To: gtkmm-forge lists sourceforge net
Message-ID: <20070105205706 9FA206C4175 box gnome org>
Content-Type: text/plain; charset=utf-8
Do not reply to this via email (we are currently unable to handle email
responses and they get discarded). You can add comments to this bug at
http://bugzilla.gnome.org/show_bug.cgi?id=392950
glibmm | general | Ver: 2.12.x
Marko Anastasov changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marko marko anastasov name
------- Comment #1 from Marko Anastasov 2007-01-05 20:55 UTC -------
> Hi! I'm missing a wrapper class for the GTimer.
It's there:
http://www.gtkmm.org/docs/glibmm-2.4/docs/reference/html/classGlib_1_1Timer.html
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Message: 2
Date: Fri, 5 Jan 2007 22:46:56 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 392950] Wrapper Class For GTimer
missing
To: gtkmm-forge lists sourceforge net
Message-ID: <20070105224656 695D56C417D box gnome org>
Content-Type: text/plain; charset=utf-8
Do not reply to this via email (we are currently unable to handle email
responses and they get discarded). You can add comments to this bug at
http://bugzilla.gnome.org/show_bug.cgi?id=392950
glibmm | general | Ver: 2.12.x
------- Comment #2 from Jan Niklas Hasse 2007-01-05 22:45 UTC -------
Oh, i couldn't find it in the class overview. sry...
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Message: 3
Date: Sat, 6 Jan 2007 00:06:04 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 391907] Glib::Error::throw_exception()
doesn't return Glib::Error instance in --disable-api-exceptions mode
To: gtkmm-forge lists sourceforge net
Message-ID: <20070106000604 DC4796C416A box gnome org>
Content-Type: text/plain; charset=utf-8
Do not reply to this via email (we are currently unable to handle email
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glibmm | general | Ver: 2.10.x
------- Comment #1 from Matt Hoosier 2007-01-06 00:04 UTC -------
It turns out that this is behavior is caused by a (mis)optimization that GCC
performs due to the stray "__noreturn__" annotation on
Glib::Error::throw_exception(), in error.h:
#ifdef GLIBMM_EXCEPTIONS_ENABLED
static void throw_exception(GError* gobject) G_GNUC_NORETURN;
#else
static std::auto_ptr<Glib::Error> throw_exception(GError* gobject)
G_GNUC_NORETURN;
#endif //GLIBMM_EXCEPTIONS_ENABLED
It is mistakenly assumed that control never returns to the sites which call
this function with !GLIBMM_EXCEPTIONS_ENABLED, so the "jump" instructions which
prevent the "then" clause from falling down into the "else" clause, are just
omitted.
This was already fixed in the 2.10.9 release, so I guess all that's left is for
me to point out that the issue is more serious than the ChangeLog entry which
said that removing the annotation avoided some compiler warnings. :)
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Message: 4
Date: Sat, 6 Jan 2007 16:27:57 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 393571] New: option parser ignores
default values
To: gtkmm-forge lists sourceforge net
Message-ID: <bug-393571-5595 http bugzilla gnome org/>
Content-Type: text/plain; charset=utf-8
Do not reply to this via email (we are currently unable to handle email
responses and they get discarded). You can add comments to this bug at
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glibmm | general | Ver: 2.13.x
Summary: option parser ignores default values
Product: glibmm
Version: 2.13.x
Platform: Other
OS/Version: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: general
AssignedTo: gtkmm-forge lists sourceforge net
ReportedBy: daniel kitta gmail com
QAContact: gtkmm-forge lists sourceforge net
GNOME version: Unspecified
GNOME milestone: Unspecified
The contents of the option value passed to Glib::OptionGroup::add_entry() by
reference are always cleared. E.g. if you do this:
bool do_foo = true;
Glib::OptionEntry entry;
Glib::OptionGroup group;
entry.set_long_description("no-foo");
entry.set_flags(Glib::OptionEntry::FLAG_REVERSE);
group.add_entry(entry, do_foo);
...
After parsing the options, do_foo will always be false, irrespective of whether
you pass the "--no-foo" option or not. Looking at the code, it appears that
OptionGroup::CppOptionEntry::allocate_c_arg() just always initializes the
allocated value using the default constructor, instead of copying the value
from the location passed to OptionGroup::add_entry().
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Message: 5
Date: Sat, 6 Jan 2007 16:47:20 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 393571] option parser ignores default
values
To: gtkmm-forge lists sourceforge net
Message-ID: <20070106164720 6C4796C41A3 box gnome org>
Content-Type: text/plain; charset=utf-8
Do not reply to this via email (we are currently unable to handle email
responses and they get discarded). You can add comments to this bug at
http://bugzilla.gnome.org/show_bug.cgi?id=393571
glibmm | general | Ver: 2.13.x
Daniel Elstner changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|gtkmm- |daniel kitta gmail com
|forge lists sourceforge net |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
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Message: 6
Date: Sat, 6 Jan 2007 19:55:32 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<bugzilla-daemon bugzilla gnome org>
Subject: [gtkmm bugzilla] [Bug 391907] Glib::Error::throw_exception()
doesn't return Glib::Error instance in --disable-api-exceptions mode
To: gtkmm-forge lists sourceforge net
Message-ID: <20070106195532 0D1B46C417D box gnome org>
Content-Type: text/plain; charset=utf-8
Do not reply to this via email (we are currently unable to handle email
responses and they get discarded). You can add comments to this bug at
http://bugzilla.gnome.org/show_bug.cgi?id=391907
glibmm | general | Ver: 2.10.x
Daniel Elstner changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |daniel kitta gmail com
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
------- Comment #2 from Daniel Elstner 2007-01-06 19:53 UTC -------
OK, I'm closing this bug since it is already fixed.
By the way, it's not a "(mis)optimization" of GCC but most definitely an error
in glibmm. The fact that you hit this bug shows that the optimization is
working :) Note that the noreturn attribute makes GCC optimize at the caller
site, so it really can't just ignore the attribute if the function does return,
since it doesn't know the definition. But there's definitely a warning when
compiling the function itself; I wonder why noone has seen that earlier.
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End of Gtkmm-forge Digest, Vol 8, Issue 5
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