Objective-C Float Rounding

Question

How might I round a float to the nearest integer in Objective-C:

Example:

float f = 45.698f; int rounded = _______; NSLog(@"the rounded float is %i",rounded); 

should print "the rounded float is 46"

Answer 1

Use the C standard function family round(). roundf() for float, round() for double, and roundl() for long double. You can then cast the result to the integer type of your choice.

Answer 2

The recommended way is in this answer: https://stackoverflow.com/a/4702539/308315

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Original answer:

cast it to an int after adding 0.5.

So

NSLog (@"the rounded float is %i", (int) (f + 0.5)); 

Edit: the way you asked for:

int rounded = (f + 0.5);   NSLog (@"the rounded float is %i", rounded);