CODEWITHSUNDEEP
iphoneobjective-ciosstring-formattingnslog
Greg
Greg

Reputation: 34838

why does this NSLog code print zero's for the values?

Why does this objective-c code print 0's for the values, where as in debugger I can see they have non-0 values:

Code

CGRect currFrame = label.frame;                 
currFrame.origin.y = currVertPos;
currFrame.origin.x = 0;
currFrame.size.height = expectedLabelSize.height;
currFrame.size.width = maxWidt  h;
NSLog(@"  currFrame dimensions:x/y/height/width = %d / %d / %d / %d", 0, currVertPos, expectedLabelSize.height, maxWidth);

What is Printed

currFrame dimensions:x/y/height/width = 0 / 0 / 0 / 0

Upvotes: 1

Views: 1808

Answers (2)

Pablo Santa Cruz
Pablo Santa Cruz

Reputation: 181460

Because you are using %d hence formatting the number as integers. Try using %f or %lf instead:

NSLog(@"  currFrame dimensions:x/y/height/width = %f / %f / %f / %f", 0, currVertPos, expectedLabelSize.height, maxWidth);

Upvotes: 2

hoha
hoha

Reputation: 4428

All these values have CGFloat type but you're trying to print them as ints. Just replace %d with %f.

P.S. Apple devs have to print CGRects occasionally so they came up with some handy methods. Try NSLog(@"currFrame dimensions: %@", NSStringFromCGRect(currFrame)).

Upvotes: 6

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