Question

Possible Duplicate:
how do you divide two integers and get a decimal answer?

This is probably really easy but I can’t find the solution. I’m not a “real” programmer…

I’m storing number and scores on my app using int_64.

 .h

 int64_t score;

 @property (nonatomic, assign) int64_t score;

.m

 @synthesize score;

Here is the math:

self.score = 7/3;

The result is “2”, instead of “2.33333…”. I should use use something different from int_64, but what?

I wanted the result to be “2,33”, with two digits after the comma. Can anyone help? Thanks!

Answer 1

int stores whole numbers, also called integers. For calculations with a fractional part use double.

Also, it’s better to fix the number of digits is when formatting for display. For example:

double score = 7.0/3.0;
NSString *strScore = [NSString stringWithFormat:@"%.2f", score];