Created
March 30, 2009 10:06
-
-
Save torsten/87726 to your computer and use it in GitHub Desktop.
Prove: [release] doesn't set a variable to nil
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// gcc not_nil.m -lObjC -framework Foundation && ./a.out | |
#include <stdio.h> | |
#include <stdarg.h> | |
#include <Cocoa/Cocoa.h> | |
@interface FooClass : NSObject | |
{ | |
} | |
@end | |
@implementation FooClass | |
- (id)init | |
{ | |
if((self = [super init])) | |
{ | |
printf("init, I am at 0x%x\n", self); | |
} | |
return self; | |
} | |
- (void)dealloc | |
{ | |
printf("dealloc\n"); | |
[super dealloc]; | |
} | |
@end | |
int main (int argc, char const *argv[]) | |
{ | |
FooClass *obj; | |
printf("0x%x // random value\n", obj); | |
obj = [[FooClass alloc] init]; | |
printf("0x%x // addr of the obj\n", obj); | |
[obj release]; | |
printf("0x%x // still the same addr and not 0x%x (nil) " | |
"because you did not touch the value of obj, " | |
"you just called a method on it\n", | |
obj, nil); | |
return 0; | |
} | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment