go-money

Represents monetary amounts as integers in the smallest unit (e.g., cents), eliminating floating-point rounding errors, as shown in initialization examples like money.New(100, money.GBP) for precise arithmetic.

Validates currency matches in operations, returning errors for mismatches (e.g., in comparisons like twoPounds.Equals(twoEuros)), preventing accidental cross-currency calculations.

Implements splitting and allocation with round-robin distribution of leftover pennies, ensuring no loss in financial divisions, demonstrated in the Split() and Allocate() examples.

Includes built-in constants for all ISO 4217 currency codes (e.g., money.GBP, money.EUR), simplifying international monetary handling without manual code definitions.