| #import <Foundation/NSObject.h> | |
| @interface Thing : NSObject {} | |
| -(int32_t)add:(int32_t)x Y:(int32_t) y; | |
| @end | |
| @implementation Thing | |
| -(int32_t)add:(int32_t)x Y:(int32_t) y { | |
| return x + y; | |
| } | |
| @end | |
| @interface Thing (Sub) | |
| -(int32_t)sub:(int32_t)x Y:(int32_t) y; | |
| @end | |
| @implementation Thing (Sub) | |
| -(int32_t)sub:(int32_t)x Y:(int32_t) y { | |
| return x - y; | |
| } | |
| @end |