method with 2 return values

Question

I want to call a method which returns two values

basically lets say my method is like the below (want to return 2 values)

NSString* myfunc
{
   NSString          


        

Answer 1

As you can only return one value/object, maybe wrap them up in an array:

-(NSArray*) arrayFromMyFunc
{
   NSString *myString = @"MYDATA";
   NSString *myString2 = @"MYDATA2";
   return [NSArray arrayWithObjects:myString,myString2,nil];
}

You can then use it like this:

NSArray *arr = [self arrayFromMyFunc];

NSString *value1 = [arr objectAtIndex:0];
NSString *value2 = [arr objectAtIndex:1];

You could pass results back by reference, but this is easy to get wrong (syntactically, semantically, and from memory management point of view).

Edit One more thing: Make sure that you really need two return values. If they are quite independent, two separate function are often the better choice - better reusabilty and mentainable. Just in case you are making this as a matter of premature optimization. :-)