Objective-C. NSNumber

The numeric data types in Objective-C can be objects. So we can send a message to them (sounds strange for someone who began programming from C). One more strange reason to have the numbers as the objects is a possibility to store them in NSArray (trivial malloc works in Objective-C, so why I need an array of objects to save the integer values?).

Anyway, even if I do not understand, it exists:

#import <Foundation/NSObject.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSValue.h>

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

    NSNumber* number;
    
    number = [NSNumber numberWithInteger:112];
    NSLog(@"integer %@", number);
    
    number = [NSNumber numberWithFloat:123.45];
    NSLog(@"float %@", number);
    
    [pool drain];
    return 0;
}