How to get absolute value from double - c-language

Question

I want the absolute-value from a negative double - and I thought the abs-function was as easy to use as in java - but NOT!

It seems that the abs

Answer 1

It's worth noting that Java can overload a method such as abs so that it works with an integer or a double. In C, overloading doesn't exist, so you need different functions for integer versus double.