Question

2.1

I am getting error during compilation

Expected function body after function declarator.

My code is quite simple and I found that this problem
occur in former XCode versions but I can’t find solution
for version 4.2.1. Does somebody have same problem ?

#import <Foundation/Foundation.h>

@interface CalculatorBrain : NSObject

_ (void)pushOperand:(double)operand;

_ ( double)performOperation:(NSString *) operation;

@end

Answer 1

Use a minus “-” character instead of underscore “_”.

#import <Foundation/Foundation.h>

@interface CalculatorBrain : NSObject

- (void)pushOperand:(double)operand;

- (double)performOperation:(NSString *)operation;

@end