TimeSpan.GetHashCode Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: TimeSpan.cs

Source:: TimeSpan.cs

Source:: TimeSpan.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Returns a hash code for this instance.

public:
 override int GetHashCode();

public override int GetHashCode ();

override this.GetHashCode : unit -> int

Public Overrides Function GetHashCode () As Integer

Returns

Int32

A 32-bit signed integer hash code.

Examples

The following example generates the hash codes of several TimeSpan objects using the GetHashCode method.

// Example for the TimeSpan::GetHashCode( ) method.
using namespace System;
void DisplayHashCode( TimeSpan interval )
{
   
   // Create a hash code and a string representation of 
   // the TimeSpan parameter.
   String^ timeInterval = interval.ToString();
   int hashCode = interval.GetHashCode();
   
   // Pad the end of the TimeSpan string with spaces if it 
   // does not contain milliseconds.
   int pIndex = timeInterval->IndexOf( ':' );
   pIndex = timeInterval->IndexOf( '.', pIndex );
   if ( pIndex < 0 )
      timeInterval = String::Concat( timeInterval, "        " );

   Console::WriteLine( "{0,22}   0x{1:X8}, {1}", timeInterval, hashCode );
}

int main()
{
   Console::WriteLine( "This example of TimeSpan::GetHashCode( ) generates "
   "the following \noutput, which displays "
   "the hash codes of representative TimeSpan \n"
   "objects in hexadecimal and decimal formats.\n" );
   Console::WriteLine( "{0,22}   {1,10}", "TimeSpan        ", "Hash Code" );
   Console::WriteLine( "{0,22}   {1,10}", "--------        ", "---------" );
   DisplayHashCode( TimeSpan(0) );
   DisplayHashCode( TimeSpan(1) );
   DisplayHashCode( TimeSpan(0,0,0,0,1) );
   DisplayHashCode( TimeSpan(0,0,1) );
   DisplayHashCode( TimeSpan(0,1,0) );
   DisplayHashCode( TimeSpan(1,0,0) );
   DisplayHashCode( TimeSpan(36000000001) );
   DisplayHashCode( TimeSpan(0,1,0,0,1) );
   DisplayHashCode( TimeSpan(1,0,1) );
   DisplayHashCode( TimeSpan(1,0,0,0) );
   DisplayHashCode( TimeSpan(864000000001) );
   DisplayHashCode( TimeSpan(1,0,0,0,1) );
   DisplayHashCode( TimeSpan(1,0,0,1) );
   DisplayHashCode( TimeSpan(100,0,0,0) );
   DisplayHashCode( TimeSpan(100,0,0,0,1) );
   DisplayHashCode( TimeSpan(100,0,0,1) );
}

/*
This example of TimeSpan::GetHashCode( ) generates the following
output, which displays the hash codes of representative TimeSpan
objects in hexadecimal and decimal formats.

      TimeSpan            Hash Code
      --------            ---------
      00:00:00           0x00000000, 0
      00:00:00.0000001   0x00000001, 1
      00:00:00.0010000   0x00002710, 10000
      00:00:01           0x00989680, 10000000
      00:01:00           0x23C34600, 600000000
      01:00:00           0x61C46808, 1640261640
      01:00:00.0000001   0x61C46809, 1640261641
      01:00:00.0010000   0x61C48F18, 1640271640
      01:00:01           0x625CFE88, 1650261640
    1.00:00:00           0x2A69C0C9, 711573705
    1.00:00:00.0000001   0x2A69C0C8, 711573704
    1.00:00:00.0010000   0x2A69E7D9, 711583705
    1.00:00:01           0x2B025649, 721573449
  100.00:00:00           0x914F4E94, -1857073516
  100.00:00:00.0010000   0x914F6984, -1857066620
  100.00:00:01           0x91E7D814, -1847076844
*/

// Example for the TimeSpan.GetHashCode( ) method.
using System;

class GetHashCode
{
    static void DisplayHashCode( TimeSpan interval )
    {
        // Create a hash code and a string representation of 
        // the TimeSpan parameter.
        string  timeInterval = interval.ToString( );
        int     hashCode = interval.GetHashCode( );

        // Pad the end of the TimeSpan string with spaces if it 
        // does not contain milliseconds.
        int pIndex = timeInterval.IndexOf( ':' );
        pIndex = timeInterval.IndexOf( '.', pIndex );
        if( pIndex < 0 )   timeInterval += "        ";

        Console.WriteLine( "{0,22}   0x{1:X8}, {1}", 
            timeInterval, hashCode );
    }

    static void Main( )
    {
        Console.WriteLine(
            "This example of TimeSpan.GetHashCode( ) generates " +
            "the following \noutput, which displays " +
            "the hash codes of representative TimeSpan \n" +
            "objects in hexadecimal and decimal formats.\n" );
        Console.WriteLine( "{0,22}   {1,10}", 
            "TimeSpan        ", "Hash Code" );
        Console.WriteLine( "{0,22}   {1,10}", 
            "--------        ", "---------" );

        DisplayHashCode( new TimeSpan( 0 ) );
        DisplayHashCode( new TimeSpan( 1 ) );
        DisplayHashCode( new TimeSpan( 0, 0, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 0, 1, 0 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0 ) );
        DisplayHashCode( new TimeSpan( 36000000001 ) );
        DisplayHashCode( new TimeSpan( 0, 1, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0, 0 ) );
        DisplayHashCode( new TimeSpan( 864000000001 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 1, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 100, 0, 0, 0 ) );
        DisplayHashCode( new TimeSpan( 100, 0, 0, 0, 1 ) );
        DisplayHashCode( new TimeSpan( 100, 0, 0, 1 ) );
    } 
} 

/*
This example of TimeSpan.GetHashCode( ) generates the following
output, which displays the hash codes of representative TimeSpan
objects in hexadecimal and decimal formats.

      TimeSpan            Hash Code
      --------            ---------
      00:00:00           0x00000000, 0
      00:00:00.0000001   0x00000001, 1
      00:00:00.0010000   0x00002710, 10000
      00:00:01           0x00989680, 10000000
      00:01:00           0x23C34600, 600000000
      01:00:00           0x61C46808, 1640261640
      01:00:00.0000001   0x61C46809, 1640261641
      01:00:00.0010000   0x61C48F18, 1640271640
      01:00:01           0x625CFE88, 1650261640
    1.00:00:00           0x2A69C0C9, 711573705
    1.00:00:00.0000001   0x2A69C0C8, 711573704
    1.00:00:00.0010000   0x2A69E7D9, 711583705
    1.00:00:01           0x2B025649, 721573449
  100.00:00:00           0x914F4E94, -1857073516
  100.00:00:00.0010000   0x914F6984, -1857066620
  100.00:00:01           0x91E7D814, -1847076844
*/

// Example for the TimeSpan.GetHashCode( ) method.
open System

let displayHashCode (interval: TimeSpan) =
    // Create a hash code and a string representation of 
    // the TimeSpan parameter.
    let timeInterval = string interval
    let hashCode = interval.GetHashCode()

    // Pad the end of the TimeSpan string with spaces if it 
    // does not contain milliseconds.
    let pIndex = timeInterval.IndexOf ':'
    let pIndex = timeInterval.IndexOf( '.', pIndex )
    let timeInterval = 
        if pIndex < 0 then timeInterval + "        "
        else timeInterval

    printfn $"{timeInterval,22}   0x{hashCode:X8}, {hashCode}" 

Console.WriteLine(
    "This example of TimeSpan.GetHashCode( ) generates " +
    "the following \noutput, which displays " +
    "the hash codes of representative TimeSpan \n" +
    "objects in hexadecimal and decimal formats.\n" )
Console.WriteLine( "{0,22}   {1,10}", 
    "TimeSpan        ", "Hash Code" )
Console.WriteLine( "{0,22}   {1,10}", 
    "--------        ", "---------" )

displayHashCode (TimeSpan 0)
displayHashCode (TimeSpan 1)
displayHashCode (TimeSpan(0, 0, 0, 0, 1) )
displayHashCode (TimeSpan(0, 0, 1) )
displayHashCode (TimeSpan(0, 1, 0) )
displayHashCode (TimeSpan(1, 0, 0) )
displayHashCode (TimeSpan 36000000001L)
displayHashCode (TimeSpan(0, 1, 0, 0, 1) )
displayHashCode (TimeSpan(1, 0, 1) )
displayHashCode (TimeSpan(1, 0, 0, 0) )
displayHashCode (TimeSpan 864000000001L)
displayHashCode (TimeSpan(1, 0, 0, 0, 1) )
displayHashCode (TimeSpan(1, 0, 0, 1) )
displayHashCode (TimeSpan(100, 0, 0, 0) )
displayHashCode (TimeSpan(100, 0, 0, 0, 1) )
displayHashCode (TimeSpan(100, 0, 0, 1) )

(*
This example of TimeSpan.GetHashCode( ) generates the following
output, which displays the hash codes of representative TimeSpan
objects in hexadecimal and decimal formats.

      TimeSpan            Hash Code
      --------            ---------
      00:00:00           0x00000000, 0
      00:00:00.0000001   0x00000001, 1
      00:00:00.0010000   0x00002710, 10000
      00:00:01           0x00989680, 10000000
      00:01:00           0x23C34600, 600000000
      01:00:00           0x61C46808, 1640261640
      01:00:00.0000001   0x61C46809, 1640261641
      01:00:00.0010000   0x61C48F18, 1640271640
      01:00:01           0x625CFE88, 1650261640
    1.00:00:00           0x2A69C0C9, 711573705
    1.00:00:00.0000001   0x2A69C0C8, 711573704
    1.00:00:00.0010000   0x2A69E7D9, 711583705
    1.00:00:01           0x2B025649, 721573449
  100.00:00:00           0x914F4E94, -1857073516
  100.00:00:00.0010000   0x914F6984, -1857066620
  100.00:00:01           0x91E7D814, -1847076844
*)

' Example for the TimeSpan.GetHashCode( ) method.
Module GetHashCode
    
    Sub DisplayHashCode( interval As TimeSpan )

        ' Create a hash code and a string representation of 
        ' the TimeSpan parameter.
        Dim timeInterval As String = interval.ToString( )
        Dim hashCode As Integer = interval.GetHashCode( )

        ' Pad the end of the TimeSpan string with spaces if it 
        ' does not contain milliseconds.
        Dim pIndex As Integer = timeInterval.IndexOf( ":"c )
        pIndex = timeInterval.IndexOf( "."c, pIndex )
        If pIndex < 0 Then timeInterval &= "        "

        Console.WriteLine( "{0,22}   0x{1:X8}, {1}", _
            timeInterval, hashCode )
    End Sub 

    Sub Main( )
        Console.WriteLine( _
            "This example of TimeSpan.GetHashCode( ) generates " & _
            "the following " & vbCrLf & "output, which displays " & _
            "the hash codes of representative TimeSpan " & vbCrLf & _
            "objects in hexadecimal and decimal formats." & vbCrLf )
        Console.WriteLine( "{0,22}   {1,10}", _
            "TimeSpan        ", "Hash Code" )    
        Console.WriteLine( "{0,22}   {1,10}", _
            "--------        ", "---------" )    

        DisplayHashCode( new TimeSpan( 0 ) )
        DisplayHashCode( new TimeSpan( 1 ) )
        DisplayHashCode( new TimeSpan( 0, 0, 0, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 0, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 0, 1, 0 ) )
        DisplayHashCode( new TimeSpan( 1, 0, 0 ) )
        DisplayHashCode( new TimeSpan( 36000000001 ) )
        DisplayHashCode( new TimeSpan( 0, 1, 0, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 1, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 1, 0, 0, 0 ) )
        DisplayHashCode( new TimeSpan( 864000000001 ) )
        DisplayHashCode( new TimeSpan( 1, 0, 0, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 1, 0, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 100, 0, 0, 0 ) )
        DisplayHashCode( new TimeSpan( 100, 0, 0, 0, 1 ) )
        DisplayHashCode( new TimeSpan( 100, 0, 0, 1 ) )
    End Sub
End Module 

' This example of TimeSpan.GetHashCode( ) generates the following
' output, which displays the hash codes of representative TimeSpan
' objects in hexadecimal and decimal formats.
' 
'       TimeSpan            Hash Code
'       --------            ---------
'       00:00:00           0x00000000, 0
'       00:00:00.0000001   0x00000001, 1
'       00:00:00.0010000   0x00002710, 10000
'       00:00:01           0x00989680, 10000000
'       00:01:00           0x23C34600, 600000000
'       01:00:00           0x61C46808, 1640261640
'       01:00:00.0000001   0x61C46809, 1640261641
'       01:00:00.0010000   0x61C48F18, 1640271640
'       01:00:01           0x625CFE88, 1650261640
'     1.00:00:00           0x2A69C0C9, 711573705
'     1.00:00:00.0000001   0x2A69C0C8, 711573704
'     1.00:00:00.0010000   0x2A69E7D9, 711583705
'     1.00:00:01           0x2B025649, 721573449
'   100.00:00:00           0x914F4E94, -1857073516
'   100.00:00:00.0010000   0x914F6984, -1857066620
'   100.00:00:01           0x91E7D814, -1847076844

Remarks

Two TimeSpan objects might have the same hash code even though they represent different time values.

Applies to

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