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iOS

Posted by Benjamin Jones
Benjamin Jones
2,269 Points

Space Cats App problem - "Values of type "NSinteger should not be used as format arguments..

Hi there I am following the tutorial for building my first sprite game app, and i have got on fine so far, but now receiving errors, with my code..

In two separate instances, i am using:

SKLabelNode scoreLabel = (SKLabelNode)[self childNodeWithName:@"Score"]; scoreLabel.text = [NSString stringWithFormat:@"%d",self.score];

and

  • (bool) loseLife { if (self.lives > 0) { NSString *lifeNodeName = [NSString stringWithFormat:@"Life%d",self.lives];

in both instances i get the amber exclamation mark " Values of type 'NSinteger' should not be used as format arguments; add an explicit cast to 'long' instead - and recommends I use %LD.. this isn't in the tutorial, and wondering whether i am doing anything wrong..

OS X 10.9.4 - XCODE version 5.1.1

many thanks guys..

Ben

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

use %ld as the format specifier and cast the value to a long.

scoreLabel.text = [NSString stringWithFormat:@"%ld", (long) self.score];

according to this stack overflow post:

You get this warning if you compile on OS X (64-bit), because on that platform NSInteger is defined as long and is a 64-bit integer. The %d format, on the other hand, is for int, which is 32-bit. So the format and the actual parameter do not match in size.

Since NSInteger is 32-bit or 64-bit, depending on the platform, the compiler recommends to add a cast to long generally.