Using operator overloading with Objective-C. Erm, ++.

main.mm

#include "objc_id.hpp"

int main(int argc, const char * argv[])
{

    @autoreleasepool {
        NSString *s1 = @"hello";
        NSString *s2 = [@"hell" stringByAppendingString: @"o"];
        if ((objc_id(s1) == objc_id(s2))) {
            NSLog(@"win");
        }
        else {
            NSLog(@"fail");
        }
    }

    return 0;
}

objc_id.hpp

#include <objc/objc.h>
#import <Foundation/Foundation.h>

#ifndef __objc_H_
#define __objc_H_

class objc_id {
    private:
    id<NSObject> object;
    public:
    objc_id(id<NSObject> theObject) {
        [theObject retain];
        object = theObject;
    };
    bool operator==(const objc_id& other) {
        return [object isEqual: other.object];
    };
    ~objc_id() {
        [object release];
    };
};

#endif //__objc_H_