A Quantity class with units
- by Ryan Ohs
Goals
Create a class that associates a numeric quantity with a unit of measurement.
Provide support for simple arithmetic and comparison operations.
Implementation
An immutable class (Could have been struct but I may try inheritance later)
Unit is stored in an enumeration
Supported operations:
Addition w/ like units
Subtraction w/ like units
Multiplication by scalar
Division by scalar
Modulus by scalar
Equals()
>, >=, <, <=, ==
IComparable
ToString()
Implicit cast to Decimal
The Source
The souce can be downloaded from Github.
Notes
This class does not support any arithmetic that would modify the unit.
This class is not suitable for manipulating currencies.
Future Ideas
Have a CompositeQuantity class that would allow quantities with unlike units to be combined.
Similar currency class with support for allocations/distributions.
Provide conversion between units. (Actually I think this would be best placed in an external service. Many situations I deal with require some sort of dynamic conversion ratio.)
