Re: [SOLVED] Crash when creating instance of class
Re: [SOLVED] Crash when creating instance of class
- Subject: Re: [SOLVED] Crash when creating instance of class
- From: Jason Bell <email@hidden>
- Date: Tue, 23 Nov 2004 14:20:26 -0500
Another example of what can happen after several long nights working on
an overdue project.
If anyone is curious, this is what will happen if you try to
instantiate a class when you've excluded the definition of its
superclass from the target. Oops.
- Jason
On Nov 23, 2004, at 12:35 PM, Jason Bell wrote:
I've been doing Cocoa development for quite a while now and for the
first time, I've encountered a problem where I have absolutely no clue
what to even try next.
My application crashes with an EXC_BAD_ACCESS when attempting to
create an instance of one of my classes. Specifically, the problem
occurs in this code:
AIPerson *person;
person = [[AIPerson alloc] init];
Pretty simple, right? We all do it millions of times. Well, the
second line produces a crash log with this:
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000010
Thread 0 Crashed:
0 libobjc.A.dylib 0x9083293c class_initialize + 0x9c
1 libobjc.A.dylib 0x9083294c class_initialize + 0xac
2 libobjc.A.dylib 0x90831524
_class_lookupMethodAndLoadCache + 0x84
3 libobjc.A.dylib 0x90831298 objc_msgSend + 0xb8
......
It doesn't even get to the init method. I don't have my own
+(void)initialize method and if I add one, it doesn't get run either.
I've tried a clean-rebuild and even deleting the entire build folder.
Since I get no compile-time errors or warnings and this log is all I
have to go on, I'm at a bit of a loss.
Seems strange, I know. I just can't think of a way to make this
happen even if I wanted it to. Any suggestions?
- Jason Bell
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