Click here to Skip to main content
Click here to Skip to main content
Alternative Tip/Trick

Tagged as

Reverse of a string without using the Reverse function in C# and VB

, 25 Jul 2011 CPOL
Rate this:
Please Sign up or sign in to vote.
/// /// Reverses an array (Change the type or use SetItem)/// /// The bytes/// The index in the bytes/// The length of bytes to reverseinternal static void Reverse(char[] array, int...
/// <summary>
/// Reverses an array (Change the type or use SetItem)
/// </summary>
/// <param name="array">The bytes</param>
/// <param name="index">The index in the bytes</param>
/// <param name="len">The length of bytes to reverse</param>
internal static void Reverse(char[] array, int index, int len)
{
    char temp;//Comment out when using XOR Swap
    //O(n/2+1)
    //Length = 5 => {0,4}, {1,3}, ? {2,2} never hit because !(near < far)
    for (int near = index, far = len - 1; near < far; ++near, --far)
    {
        temp = array[near]; //          array[near] ^= array[far];
        array[near] = array[far];//          array[far] ^= array[near];
        array[far] = temp;//          array[near] ^= array[far];
    }
}
internal static void Reverse(char[] array)
{
   Reverse(array, 0, array.Length);
}
internal static String Reverse(String theString)
{
   char[] array = theString.ToCharArray();
   Reverse(array, 0, array.Length);
   return new String(array);
}

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author

jfriedman
Software Developer (Senior) ASTI Transportation Inc.
United States United States
Livin in a lonely world, caught the midnight train going anywhere... Only thing is it was a runaway train... and it ain't ever goin back...
 
v//
Follow on   Twitter   Google+

Comments and Discussions

 
-- There are no messages in this forum --
| Advertise | Privacy | Mobile
Web03 | 2.8.141029.1 | Last Updated 25 Jul 2011
Article Copyright 2011 by jfriedman
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid