The overloads I've been dying to write since I started working with NSDecimalNumbers.

NSDecimalNumberOperators.swift

// The overloads I've been dying to write since I started working with NSDecimalNumbers.

import Foundation

@infix func > (left:NSDecimalNumber, right:NSDecimalNumber) -> Bool
{
    return left.compare(right) == NSComparisonResult.OrderedDescending
}

@infix func < (left:NSDecimalNumber, right:NSDecimalNumber) -> Bool
{
    return left.compare(right) == NSComparisonResult.OrderedAscending
}

@infix func >= (left:NSDecimalNumber, right:NSDecimalNumber) -> Bool
{
    return left.compare(right) != NSComparisonResult.OrderedAscending
}

@infix func <= (left:NSDecimalNumber, right:NSDecimalNumber) -> Bool
{
    return left.compare(right) != NSComparisonResult.OrderedDescending
}

@infix func + (left:NSDecimalNumber, right:NSDecimalNumber) -> NSDecimalNumber
{
    return left.decimalNumberByAdding(right)
}

@infix func * (left:NSDecimalNumber, right:NSDecimalNumber) -> NSDecimalNumber
{
    return left.decimalNumberByMultiplyingBy(right)
}

@infix func - (left:NSDecimalNumber, right:NSDecimalNumber) -> NSDecimalNumber
{
    return left.decimalNumberBySubtracting(right)
}

@infix func / (left:NSDecimalNumber, right:NSDecimalNumber) -> NSDecimalNumber
{
    return left.decimalNumberByDividingBy(right)
}