devision

[mar11]

Hi all,

assuming this code:

int a;

a = 90 / 20;

cout << "a"<<a<<endl; // output is 4 

How can i declare the variable if i want :

1- to get 90 /20 = 4.5

2- to get 90/20 = 5

thanks for each advance

[bluezor]

You can declare it as double a; for it to be able to take decimal points.
You can round up / round down a value using <cmath>'s two functions -
* ceil - http://www.cplusplus.com/reference/clibrary/cmath/ceil/ (rounding up)
* floor - http://www.cplusplus.com/reference/clibrary/cmath/floor/ (rounding down)

[mar11]

@bluezor: thanks a lot

[firedraco]

Also, you need to change either 90 or 20 to a float/double (otherwise you will get 4 because of integer division).