Code has moved to https://github.com/busterwood/Goodies

The Money struct prevents you accidently adding numbers together that repesents different currencies.

The Money constructor requires a decimal amount and an ISO currency code string.

Basic operators include:

• - for negation
• * for multiplication
• / for division
• == for equality
• != for inequality

If different currencies are passed to any of the following operators then an InvalidOperationException will be thrown:

• + for addition
• - for substraction
• > for greater than comparision
• < for less than comparison
• >= for greater than or equal to comparision
• <= for less than or equal to comparison

There also extension methods add to decimal for conversion to some common currencies, i.e. 1m.GBP(), 2m.USD() and 3m.EUR()

The MoneyBag class is a collection of money in one or more currencies, and has the following methods:

• Add(Money m)
• Substract(Money m)
• Contains(string currency)
• Money Remove(string currency)
• GetEnumerator to enumerate the totals of each currency

MoneyBag also has an Money this[string currency] getter property that will return the amount of a currency in the bag, or zero if the bag does not contain the currency.

The static Currencies class has a int? DecimalPlaces(string currency) method used to determine the decimal places used for all known ISO currency codes, including Bitcoin etc.

Both Money and MoneyBag use Currencies to correctly format money amounts.