csharp-7-ref-local-and-returns

void Main()
{
	PriceA.Dump("A");
	PriceB.Dump("B");
	PriceC.Dump("C");
	
	"---".Dump("GetPriceA()");
	ref decimal price = ref GetPriceA();
	PriceA.Dump("A");
	(++price).Dump("price++");
	PriceA.Dump("A");
	
	"---".Dump("GetPriceB()");
	
	price = GetPriceB();
	price.Dump("price");
	PriceA.Dump("A");
	PriceB.Dump("B");
	(++price).Dump("price++");
	PriceA.Dump("A");
	PriceB.Dump("B");
	
	"---".Dump("ref GetPriceC()");
	
	price = ref GetPriceC();
	price.Dump();
	PriceA.Dump("A");
	PriceB.Dump("B");
	PriceC.Dump("C");
	(++price).Dump("price++");
	PriceA.Dump("A");
	PriceB.Dump("B");
	PriceC.Dump("C");
}

private decimal PriceA = 199;
private decimal PriceB = 99;
private decimal PriceC = 9;

public ref decimal GetPriceA()
{
	return ref this.PriceA;
}

public decimal GetPriceB()
{
	return this.PriceB;
}

public ref decimal GetPriceC()
{
	return ref this.PriceC;
}