questionsolved  devision

mar11 (29)   Link to this post


Hi all,

assuming this code:

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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 (208)   Link to this post
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 (29)   Link to this post
@bluezor: thanks a lot
firedraco (2048)   Link to this post
Also, you need to change either 90 or 20 to a float/double (otherwise you will get 4 because of integer division).

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