Division with decimals

Question

I'm running the following code:

float fSpeed = 1 + (uRate / 10);

uRate is -5.

I was hoping to get the result 0.5 because (uRate / 10) should be -0.5

However, fSpeed is 0. Does anybody see my mistake?

Thank you.

Assuming uRate is an int and is equal to `-5`, `(uRate / 10)` produces `-1`. — Tony Tuttle, Mar 01 '17 at 22:54
Also keep in mind, that 0.5 is one of those rare cases, a floating point value can represent. — IInspectable, Mar 01 '17 at 23:21

Vlad from Moscow · Accepted Answer · 2017-03-01T23:04:41.690

2

Just write

float fSpeed = 1 + (uRate / 10.0f);

In this case the expression (uRate / 10.0f) will have a floating value due to the usual arithmetic conversions.

edited Mar 01 '17 at 23:04

answered Mar 01 '17 at 22:54

Vlad from Moscow

1 Answers1