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// ****************************************************************
// This is free software licensed under the NUnit license. You
// may obtain a copy of the license as well as information regarding
// copyright ownership at http://nunit.org/?p=license&r=2.4.
// ****************************************************************
namespace NUnit.Samples.Money
{
/// <summary>The common interface for simple Monies and MoneyBags.</summary>
interface IMoney
{
/// <summary>Adds a money to this money.</summary>
IMoney Add(IMoney m);
/// <summary>Adds a simple Money to this money. This is a helper method for
/// implementing double dispatch.</summary>
IMoney AddMoney(Money m);
/// <summary>Adds a MoneyBag to this money. This is a helper method for
/// implementing double dispatch.</summary>
IMoney AddMoneyBag(MoneyBag s);
/// <value>True if this money is zero.</value>
bool IsZero { get; }
/// <summary>Multiplies a money by the given factor.</summary>
IMoney Multiply(int factor);
/// <summary>Negates this money.</summary>
IMoney Negate();
/// <summary>Subtracts a money from this money.</summary>
IMoney Subtract(IMoney m);
}
}
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