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Paradoxal Press
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Category: Programming
Level: Beginner to seasoned
900 pages
ISBN-10 097661322-0
ISBN-13 978-097661322-0
$59.99 USA
$79.99 CANADA
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Listing 14-34 extracted from chapter Unsafe code, exceptions, anonymous methods, iterators
Listing 14-33< > Listing 14-35
This listing can be compiled with the command line: csc.exe /target:exe Example_14_34.cs Errors: 0 Warnings: 0
Example_14_34.cs
public class Persons : System.Collections.IEnumerable {
private class PersonsEnumerator : System.Collections.IEnumerator {
private int index = -1;
private Persons P;
public PersonsEnumerator( Persons p ){ this.P = p; }
public bool MoveNext() {
index++;
return index < P.m_Names.Length;
}
public void Reset() { index = -1; }
public object Current { get { return P.m_Names[index]; } }
}
// The method GetEnumerator() of IEnumerable.
public System.Collections.IEnumerator GetEnumerator() {
return new PersonsEnumerator( this );
}
string[] m_Names;
// The constructor to initialize the array.
public Persons( params string[] Names ) {
m_Names = new string[ Names.Length ];
// Copy the array.
Names.CopyTo( m_Names, 0 );
}
// An indexer that returns the name from the index.
private string this[ int index ] {
get { return m_Names[index]; }
set { m_Names[index] = value; }
}
}
class Program {
static void Main() {
Persons arrPersons = new Persons(
"Michel", "Christine", "Mathieu", "Julien");
foreach (string s in arrPersons)
System.Console.WriteLine(s);
}
}
Copyright Patrick Smacchia 2006 2007
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