Mac Forum / Programming / Mac Programming / April 2007

I'm obviously missing something here. but I have a simple Objective-C
program which is generating a bus error on the line with the [pool
release] command.

/* upbcopy.m */
#import <Cocoa/Cocoa.h>

int main (int argc, const char * argv[]) {
   NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
   NSStringEncoding encoding = NSUTF8StringEncoding;

   NSFileHandle *fh = [NSFileHandle fileHandleWithStandardInput];

   NSData *data = [fh availableData];
   NSString *string = [[NSString alloc] initWithData:data encoding:
encoding];
   [data release];
   NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
   [pasteboard declareTypes:
        [NSArray arrayWithObject:NSStringPboardType]
                                          owner:nil];
   [pasteboard setString:string forType:NSStringPboardType];
   [fh release];
   [pool release];
   return 0;
}

Compile with:

  gcc -o upbcopy -framework Cocoa upbcopy.m

Run it with some standard input: ./upbcopy < /dev/null

GDB says the program fails at the [pool release] call. If I remove the
[pool release] call, it works fine, but my understanding is that we
need to release the pool in general.

Any help would be greatly appreciated.  Thanks!

=thomas andrews