Mac Forum / Programming / Mac Programming / April 2007

I'm trying to learn Objective C, and am running into a problem I don't
seem to be able to solve by myself.
The following test code compiles OK, but when I run it, it gives me a
bus error.  I've indicated where it prints, and where it seems to
develop the problem. Can anyone point me in the right direction?
Thanks!

//Atest.m
#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
#import <Foundation/NSArray.h>
#import <Foundation/NSAutoreleasePool.h>
#import <stdio.h>

@interface TestObject: NSObject
{
    NSString *testName;
}
-(id) initWithName: (NSString *) name;
-(NSString *) returnName;
@end

@implementation TestObject;
-(id) initWithName: (NSString *) name
{
    self = [super init];
    if (self) {
        testName = [[NSString alloc] initWithString: name];
        printf("\nThe title of the test object is %s\n", [testName
UTF8String]);   //This prints OK
    }
}
-(NSString *) returnName
{
    return testName;
}
@end

int main (int argc, char *argv[])
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    TestObject *myTestObject = [[TestObject alloc] initWithName:
@"Test"];
    NSString *myTestName;
    myTestName = [myTestObject returnName];
    printf("/n A second test of the test Object is %s\n", [myTestName
UTF8String]);  //This does not print
    [myTestObject release];
    [pool release];
    return 0;
}

Here is the compilation, and the result of running it...

seward-salvages-computer:~/Kochan sewardsalvage$ gcc -framework cocoa
Atest.m -o t
seward-salvages-computer:~/Kochan sewardsalvage$ ./t

The title of the test object is Test
Bus error