C# 0 The Complete Reference

Length

 and 

Error

 are declared:

// An auto-implemented, read-only Length property.

public int Length { get; private set; }

// An auto-implemented, read-only Error property.

public bool Error { get; private set; }

Notice that for both properties, the 

set

 accessor is private. As explained earlier in this 

chapter, this results in what is effectively a read-only, auto-implemented property.

The

RangeArray

 constructor is shown here:

// Construct array given its size.

public RangeArray(int low, int high) {

  high++;

  if(high <= low) {

    Console.WriteLine("Invalid Indices");

    high = 1; // create a minimal array for safety

    low = 0;

  }

  a = new int[high - low];

  Length = high - low;

  lowerBound = low;

  upperBound = --high;

}

A

RangeArray

 is constructed by passing the lower bound index in 

low

 and the upper 

bound index in