NSAutoreleasePool is unavailable

Question

I am following "Programming in Objective-C" 3^rd edition and I am having problems with the first example.

I keep getting this error:

Semantic Issue: 'NSAutoreleasePool' is unavailable: not available in automatic reference counting mode

Here is my code:

// // main.m // prog1 // // Created by Steve Kochan on 1/30/11. // Copyright 2011 ClassroomM, Inc.. All rights reserved. //  #import <Foundation/Foundation.h> int main (int argc, const char * argv[]) {     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];     NSLog (@"Programming is fun!");     [pool drain];     return 0; } 

Any insight will be greatly appreciated.

Answer 1

The compiler is being asked to compile the file with ARC (automatic reference counting) enabled. Turn that off or, better yet, modernize your example:

int main (int argc, const char * argv[]) {     @autoreleasepool {         NSLog (@"Programming is fun!");     }     return 0; } 

(No, I can't tell you how, specifically, to turn off ARC, if that was the route you were to go down due to the aforementioned NDA.)