Allows to transform a negative value into a positive value.
This function allows to get a positive representation from a negative representation. It doesn't do an arithmetic operation to obtain the result.
This function tries first to figure out if the given decimal value is a negative one.
Once done, the function normalizes the number and strips the negative sign from the begining.
If the number is already positive, the function just returns without error.
|decimal ||the AfDalDecimal value to transform into a positive.|
- the function returns the new posite AfDalDecimal value. In the case the given value is already positive the function retuns NULL.