Issues with data type.

[nexus]

Hey all,

I'm trying to develop a setAgeWithInt method in my .m file but keep getting a warning: Assingment makes integer from pointer without a cast. I know this is a data type issue.

Here is my .h:

@interface Dog : NSObject {				
	
	NSString *name;
	NSString *breed;
	int age;
}

- (void) bark;
- (void) setName: (NSString *) n;		
- (void) setBreed: (NSString *)b;
- (void) setAgeWithInt: (int *)x;

@end

Here is my .m:

#import "Dog.h"

@implementation Dog

- (void) bark { 
	
	NSLog(@"Woof, says %@. She is a %@ and she is %d years old.", name, breed, age);	//	%d is used for integer values.

}

- (void) setName:(NSString *)n	{ 
	
	name = n;
}

- (void) setBreed:(NSString *)b	{ 
	
	breed = b;

}

- (void) setAgeWithInt:(int *)x {
	
	age = x;
	
}

Also, I'd like to create a setAge method that allows me to use float values. In the bark method, using %d, i'd like that to display the age whether it is int or float. Is this possible?

Thank you

[nexus]

Ok, I fixed the warning.

Now setAgeWithInt method declaration in my .h looks like:

- (void) setAgeWithInt: (int)x;

My method code in my .m looks like:

- (void) setAgeWithInt:(int)x {
	
	age = x;
	
}

but I would l still like a way to get the bark method to display age whether it's a float or an int.

[Mr Jack]

Originally Posted by nexus

but I would l still like a way to get the bark method to display age whether it's a float or an int.

You could do in a messy fashion by storing a flag based on which you're storing, but it's not a great way of doing it. It's up to you to decide how you want to store such things and then display accordingly. Personally, I wouldn't ever store an age: instead store the Date of Birth and calculate the age from the current date. You can then decide how you wish to display the age accordingly - for example you might want to show number of days if they're under 31 days, weeks up to three months, months up to a year and whole years thereafter.

[nexus]

Thank you Jack, that's a great way to do the age. Any hand7 scripts for calculating an age from a given date?

[Mr Jack]

I'm not familiar with the Objective-C date classes; have a look at the documentation for NSDate.