* nsterm.m warnings @ 2012-01-04 17:53 Carsten Mattner 2012-01-04 19:57 ` Jan Djärv 0 siblings, 1 reply; 5+ messages in thread From: Carsten Mattner @ 2012-01-04 17:53 UTC (permalink / raw To: Emacs developers I think at least one of the following or ideally both should be fixed. nsterm.m: In function ‘-[EmacsView conversationIdentifier]’: nsterm.m:5053: warning: conflicting types for ‘-(long int)conversationIdentifier’ /System/Library/Frameworks/AppKit.framework/Headers/NSInputManager.h:25: warning: previous declaration of ‘-(NSInteger)conversationIdentifier’ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nsterm.m warnings 2012-01-04 17:53 nsterm.m warnings Carsten Mattner @ 2012-01-04 19:57 ` Jan Djärv 2012-01-04 23:49 ` Carsten Mattner 0 siblings, 1 reply; 5+ messages in thread From: Jan Djärv @ 2012-01-04 19:57 UTC (permalink / raw To: Carsten Mattner; +Cc: Emacs developers 4 jan 2012 kl. 18:53 skrev Carsten Mattner: > I think at least one of the following or ideally both should be fixed. > > nsterm.m: In function ‘-[EmacsView conversationIdentifier]’: > nsterm.m:5053: warning: conflicting types for ‘-(long > int)conversationIdentifier’ > /System/Library/Frameworks/AppKit.framework/Headers/NSInputManager.h:25: > warning: previous declaration of ‘-(NSInteger)conversationIdentifier’ What do you mean by "both"? This is only one warning. It has no practical importance, and only occurs if you build a 32-bit executable, which is rare on OSX. Jan D. ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nsterm.m warnings 2012-01-04 19:57 ` Jan Djärv @ 2012-01-04 23:49 ` Carsten Mattner 2012-01-05 7:31 ` Jan D. 0 siblings, 1 reply; 5+ messages in thread From: Carsten Mattner @ 2012-01-04 23:49 UTC (permalink / raw To: Jan Djärv; +Cc: Emacs developers On Wed, Jan 4, 2012 at 8:57 PM, Jan Djärv <jan.h.d@swipnet.se> wrote: > > 4 jan 2012 kl. 18:53 skrev Carsten Mattner: > >> I think at least one of the following or ideally both should be fixed. >> >> nsterm.m: In function ‘-[EmacsView conversationIdentifier]’: >> nsterm.m:5053: warning: conflicting types for ‘-(long >> int)conversationIdentifier’ >> /System/Library/Frameworks/AppKit.framework/Headers/NSInputManager.h:25: >> warning: previous declaration of ‘-(NSInteger)conversationIdentifier’ > > What do you mean by "both"? This is only one warning. It's the same cause, but two warning messages. You could logically group them to one, yes. > It has no practical importance, and only occurs if you build a 32-bit > executable, which is rare on OSX. If it's safe to ignore in a 32-bit build, ok. Strictly speaking the code is incorrect, isn't it? ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nsterm.m warnings 2012-01-04 23:49 ` Carsten Mattner @ 2012-01-05 7:31 ` Jan D. 2012-01-05 11:21 ` Carsten Mattner 0 siblings, 1 reply; 5+ messages in thread From: Jan D. @ 2012-01-05 7:31 UTC (permalink / raw To: Carsten Mattner; +Cc: Emacs developers Carsten Mattner skrev 2012-01-05 00:49: > On Wed, Jan 4, 2012 at 8:57 PM, Jan Djärv<jan.h.d@swipnet.se> wrote: >> >> 4 jan 2012 kl. 18:53 skrev Carsten Mattner: >> >>> I think at least one of the following or ideally both should be fixed. >>> >>> nsterm.m: In function ‘-[EmacsView conversationIdentifier]’: >>> nsterm.m:5053: warning: conflicting types for ‘-(long >>> int)conversationIdentifier’ >>> /System/Library/Frameworks/AppKit.framework/Headers/NSInputManager.h:25: >>> warning: previous declaration of ‘-(NSInteger)conversationIdentifier’ >> >> What do you mean by "both"? This is only one warning. > > It's the same cause, but two warning messages. > You could logically group them to one, yes. I see it as one warning message. There are two "warning:" in there, but they only make sense together. > >> It has no practical importance, and only occurs if you build a 32-bit >> executable, which is rare on OSX. > > If it's safe to ignore in a 32-bit build, ok. > Strictly speaking the code is incorrect, isn't it? The code relies on the fact that the compiler can convert a long to an int on a 32-bit build. In principle such a conversion can truncate the value. But in this case it does not matter, as long as the value is unique within the application (Emacs). As the build is 32-bit, the pointer converted to long is 32-bit to start with. That long is then converted to an int, so there is no truncation. But it is bad style to change interfaces like this, I'll fix it shortly. I guess it was long at some point in time, and then got changed to NSInteger. Jan D. ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nsterm.m warnings 2012-01-05 7:31 ` Jan D. @ 2012-01-05 11:21 ` Carsten Mattner 0 siblings, 0 replies; 5+ messages in thread From: Carsten Mattner @ 2012-01-05 11:21 UTC (permalink / raw To: Jan D.; +Cc: Emacs developers On Thu, Jan 5, 2012 at 8:31 AM, Jan D. <jan.h.d@swipnet.se> wrote: > The code relies on the fact that the compiler can convert a long to an int > on a 32-bit build. In principle such a conversion can truncate the value. > But in this case it does not matter, as long as the value is unique within > the application (Emacs). As the build is 32-bit, the pointer converted to > long is 32-bit to start with. That long is then converted to an int, so > there is no truncation. > > But it is bad style to change interfaces like this, I'll fix it shortly. I > guess it was long at some point in time, and then got changed to NSInteger. Thanks. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2012-01-05 11:21 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-01-04 17:53 nsterm.m warnings Carsten Mattner 2012-01-04 19:57 ` Jan Djärv 2012-01-04 23:49 ` Carsten Mattner 2012-01-05 7:31 ` Jan D. 2012-01-05 11:21 ` Carsten Mattner
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