How to round an float value and convert it into NSInteger value in Iphone sdk?

Question

Hi Guys,

I need to round a float value and convert it into NSInteger value.

for example:

       float f = 90.909088;

       I want the result as 91.

Can any one help to get rid of this.

Anyone's help will be much appreciated.

Answer 1

try doing 'f = floor(f+0.5)' before the integer conversion

Answer 2

Try:

float f = 90.909088;
NSNumber *myNumber = [NSNumber numberWithDouble:(f+0.5)];
NSInteger myInt = [myNumber intValue];

Answer 3

One of the following C math functions might work for you:

• double ceil(double)
• double floor(double)
• double nearbyint(double)
• double rint(double)
• double round(double)
• long int lrint(double)
• long int lround(double)
• long long int llrint(double)
• long long int llround(double)
• double trunc(double)

To get more documentation, open a terminal session and type (for example)

man lround

I pick lround as an example because I think that is the one you want.