As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.
Closed 10 years ago.
OK, this is pretty much what I'm trying to do.
I've got a HUGE static library full of functions, which has to be NON-ARC (because of errors).
Now my app has to be ARC-enabled.
However : when ever I'm trying to compile my app, it throws all errors related to my using the NON-arc library.
Any ideas on how this can be solved?
Combining ARC with MRC is not at all a problem. In fact, you do it every day, as many system frameworks are not implemented using ARC, yet.
So, what are your errors?
Related
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.
Closed 10 years ago.
I'm learning this from a 'newish' book, but I'm wondering what the current standard is as to the use of the dot operator for things outside of setting property values.
As in method calls and whatnot. Obviously myClass.myMethod:value is syntactically correct, but is it an accepted norm nowadays?
The dot operator is much more 'human' feeling than [myClass myMethod:myValue] in my opinion.
Have you tried compiling this? Your example of myClass.myMethod:value is not valid as far as I understand it.
The dot operator is translated by the compiler to either -(void)setMyValue:(ValueType*) or -(ValueType*)myValue depending on if you are getting or setting it.
Read the apple documentation for more info:
http://developer.apple.com/library/ios/documentation/cocoa/conceptual/objectivec/Chapters/ocObjectsClasses.html#//apple_ref/doc/uid/TP30001163-CH11-SW17
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.
Closed 10 years ago.
I'm looking to unzip a file in an iOS app, but can't find a library that is ARC compatible.
Minizip works pretty well. I'm not sure what you mean by "ARC compatible," though. If it's in C or C++, ARC isn't relevant. If it's in ObjC, you can just turn off ARC for the files you need to ( How can I disable ARC for a single file in a project? )
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.
Closed 9 years ago.
I've seen some great in-browser tutorials and/or practice exercises in other languages. To name a few:
Ruby: Tryruby.org
JS: Codeacademy.com
Rails: railsforzombies.com
I've also seen great Java algorithm challenges at codingbat.com.
I haven't found anything similar for learning C, or Objective-C (which is my real goal). Any suggestions?
go ahead with http://developer.apple.com/library/mac/documentation/cocoa/conceptual/objectivec/objc.pdf
for Objective-C. It works great on my browser- opens up the pdf.
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.
Closed 11 years ago.
To better understand ARC I'm looking for example code that compiles perfectly with ARC enabled , but crashes at runtime. Ie the common pitfalls that may be overlooked and can cause you a debugging nightmare if you've never encountered that issue before.
Real life examples tuned down to the minimum code that reproduces the issues would be very helpful. In particular if the ARC code is interfacing with C or C++ code.
Quick example of the many I was thinking along the same lines as bbum.
Casting from CF... to NS... confuses ARC if done incorrectly for example:
CFArrayRef *supportedInterfaces = CNCopySupportedInterfaces();
NSArray *interfaceNames = (__bridge_transfer NSArray *)supportedInterfaces;
CFRelease(supportedInterfaces);
Would over-release supportedInterfaces since __bridge_transfer retains the NSArray while releasing the CFArrayRef. In this case either don't use the CFRelease() or use plain __bridge.
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.
Closed 10 years ago.
I would like to know if there are any tutorial websites for learning PyObjC apart from the home page of the project itself. I'm enthusiastic about being able to use python to develop native code and be productive without learning how to program in some of the other more traditional compiled languages. Anywhere I could get a screencast or good beginner tuts would be excellent.
You could start with Will Larson's stuff. You could read the Apple docs and do the temperature conversion thingie. You could do what I did and get Hillegass's book and then do the examples using PyObjC. You could read my stuff. I have lots of simple examples, but I'm just an amateur. You don't need to worry about Objective-C yet, but if you stick with it, you probably will.
And you really must learn that case matters.