Macro / Block / Function / etc

//
//  main.m
//  ScratchObjC
//
//  Created by Don Mag on 3/17/20.
//  Copyright © 2020 Don Mag. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "AppDelegate.h"

// MACRO definition
#define MACROSUM(a, b) a + b;

// BLOCK declaration
int (^BLOCKSUM)(int, int) = ^(int a, int b) {
    return a + b;
};

// Function
int functionSum(int a, int b) {
    return a + b;
}

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

    int x = 0;

    x = 1 + 2;

    NSLog(@"Assignment result: %d", x);

    x = functionSum(3, 4);

    NSLog(@"Function result: %d", x);

    x = MACROSUM(5, 6);

    NSLog(@"Defined Macro result: %d", x);

    x = BLOCKSUM(7, 8);

    NSLog(@"Declared Block result: %d", x);

    x = ^(int a, int b) {
        return a + b;
    }(9, 10);

    NSLog(@"Inline Block result: %d", x);

    NSString * appDelegateClassName;
    @autoreleasepool {
        // Setup code that might create autoreleased objects goes here.
        appDelegateClassName = NSStringFromClass([AppDelegate class]);
    }
    return UIApplicationMain(argc, argv, nil, appDelegateClassName);
}