Check if the current representation is a positive value.
This function allows to figure out if the given value is positive. Keep in mind that representation such as (-)-12,32 will not be considered as positive values because it implies an operational not implemented on this function. In fact, (-)-12,32 is a short way of represent (-1) * (-12,32) which is not the mission of this function. It only check for single number representations.
|decimal ||the AfDalDecimal value to check.|
- TRUE if the number is positive or FALSE if not or it fails.