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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


Listing 16-21 extracted from chapter Base classes


Listing 16-20<     > Listing 17-1


This listing can be compiled with the command line:
csc.exe /target:exe Example_16_21.cs
Errors: 1 Warnings: 0


Example_16_21.cs
using System;
using System.Text.RegularExpressions;
using CompiledExpressions;
using System.Diagnostics;

public class Program {
   const int NLOOP = 1000000;
   const string str = "abcdefghijklmnopqrstuvwxyz";
   static void Main() {
      bool b;
      Regex regex1 = new Regex("^[^0-9]*$");
      Stopwatch sw = Stopwatch.StartNew();
      for int = 0; i < NLOOP; i++ )
         b = regex1.IsMatch( str );
      Console.WriteLine( "Without precompile:{0}", sw.Elapsed );

      sw = Stopwatch.StartNew();
      DateTime dateDebut2 = DateTime.Now;
      NoDigits regex2 = new NoDigits();
      for int = 0; i < NLOOP; i++ )
         b = regex2.IsMatch( str );
      Console.WriteLine( "With precompile:{0}", sw.Elapsed );
   }
}	
Copyright Patrick Smacchia 2006 2007