Divide int and round in Objective-C

Question

I have 2 int. How to divide one into another, and then round off later?

Answer 1

If your ints are A and B and you want ceil (A / B) to just calculate (A+B-1)/B

Answer 2

What about:

 float A,B; // this variables have to be floats! int result = floor(A/B); // rounded down int result = ceil(A/B); // rounded up 

Answer 3

 -(NSInteger)divideAndRoundUp:(NSInteger)a with:(NSInteger)b { if( a % b != 0 ) { return a / b + 1; } return a / b; } 

Answer 4

As in C, you can use both float methods and then round the result using a rounding function that takes a float as input.

 int a = 1; int b = 2; float result = (float)a / (float)b; int rounded = (int)(result+0.5f); i 

Answer 5

If you are looking for 2.1 roundup> 3

 double row = _datas.count / 3; double rounded = ceil(_datas.count / 3); if(row > rounded){ row += 1; }else{ }