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BitConverter.GetBytes Method (Single)

Returns the specified single-precision floating point value as an array of bytes.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

public static byte[] GetBytes (
	float value
)
public static byte[] GetBytes (
	float value
)
public static function GetBytes (
	value : float
) : byte[]
Not applicable.

Parameters

value

The number to convert.

Return Value

An array of bytes with length 4.

The following code example converts the bit patterns of Single values to Byte arrays with the GetBytes method.

// Example of the BitConverter.GetBytes( float ) method.
using System;

class GetBytesSingleDemo
{
    const string formatter = "{0,16:E7}{1,20}";
 
    // Convert a float argument to a byte array and display it.
    public static void GetBytesSingle( float argument )
    {
        byte[ ] byteArray = BitConverter.GetBytes( argument );
        Console.WriteLine( formatter, argument, 
            BitConverter.ToString( byteArray ) );
    }
       
    public static void Main( )
    {
        Console.WriteLine( 
            "This example of the BitConverter.GetBytes( float ) " +
            "\nmethod generates the following output.\n" );
        Console.WriteLine( formatter, "float", "byte array" );
        Console.WriteLine( formatter, "-----", "----------" );
          
        // Convert float values and display the results.
        GetBytesSingle( 0.0F );
        GetBytesSingle( 1.0F );
        GetBytesSingle( 15.0F );
        GetBytesSingle( 65535.0F );
        GetBytesSingle( 0.00390625F );
        GetBytesSingle( 0.00000000023283064365386962890625F );
        GetBytesSingle( 1.2345E-35F );
        GetBytesSingle( 1.2345671F );
        GetBytesSingle( 1.2345673F );
        GetBytesSingle( 1.2345677F );
        GetBytesSingle( 1.23456789E+35F );
        GetBytesSingle( float.MinValue );
        GetBytesSingle( float.MaxValue );
        GetBytesSingle( float.Epsilon );
        GetBytesSingle( float.NaN );
        GetBytesSingle( float.NegativeInfinity );
        GetBytesSingle( float.PositiveInfinity );
    }
}

/*
This example of the BitConverter.GetBytes( float )
method generates the following output.

           float          byte array
           -----          ----------
  0.0000000E+000         00-00-00-00
  1.0000000E+000         00-00-80-3F
  1.5000000E+001         00-00-70-41
  6.5535000E+004         00-FF-7F-47
  3.9062500E-003         00-00-80-3B
  2.3283064E-010         00-00-80-2F
  1.2345000E-035         49-46-83-05
  1.2345671E+000         4B-06-9E-3F
  1.2345673E+000         4D-06-9E-3F
  1.2345676E+000         50-06-9E-3F
  1.2345679E+035         1E-37-BE-79
 -3.4028235E+038         FF-FF-7F-FF
  3.4028235E+038         FF-FF-7F-7F
  1.4012985E-045         01-00-00-00
             NaN         00-00-C0-FF
       -Infinity         00-00-80-FF
        Infinity         00-00-80-7F
*/

// Example of the BitConverter.GetBytes( float ) method.
import System.*;

class GetBytesSingleDemo
{
    private static String formatter = "{0,16:E7}{1,20}";

    // Convert a float argument to a byte array and display it.
    public static void GetBytesSingle(float argument)
    {
        ubyte byteArray[] = BitConverter.GetBytes(argument);
        Console.WriteLine(formatter, (Single)argument, 
            BitConverter.ToString(byteArray));
    } //GetBytesSingle

    public static void main(String[] args)
    {
        Console.WriteLine(("This example of the BitConverter.GetBytes( float ) "
            + "\nmethod generates the following output.\n"));
        Console.WriteLine(formatter, "float", "byte array");
        Console.WriteLine(formatter, "-----", "----------");

        // Convert float values and display the results.
        GetBytesSingle(0);
        GetBytesSingle(1);
        GetBytesSingle(15);
        GetBytesSingle(65535);
        GetBytesSingle(0.00390625F);
        GetBytesSingle(0.00000000023283064365386962890625F);
        GetBytesSingle(1.2345E-35F);
        GetBytesSingle(1.2345671F);
        GetBytesSingle(1.2345673F);
        GetBytesSingle(1.2345677F);
        GetBytesSingle(1.23456789E+35F);
        GetBytesSingle(System.Single.MinValue);
        GetBytesSingle(System.Single.MaxValue);
        GetBytesSingle(System.Single.Epsilon);
        GetBytesSingle(System.Single.NaN);
        GetBytesSingle(System.Single.NegativeInfinity);
        GetBytesSingle(System.Single.PositiveInfinity);
    } //main
} //GetBytesSingleDemo

/*
This example of the BitConverter.GetBytes( float )
method generates the following output.

           float          byte array
           -----          ----------
  0.0000000E+000         00-00-00-00
  1.0000000E+000         00-00-80-3F
  1.5000000E+001         00-00-70-41
  6.5535000E+004         00-FF-7F-47
  3.9062500E-003         00-00-80-3B
  2.3283064E-010         00-00-80-2F
  1.2345000E-035         49-46-83-05
  1.2345671E+000         4B-06-9E-3F
  1.2345673E+000         4D-06-9E-3F
  1.2345676E+000         50-06-9E-3F
  1.2345679E+035         1E-37-BE-79
 -3.4028235E+038         FF-FF-7F-FF
  3.4028235E+038         FF-FF-7F-7F
  1.4012985E-045         01-00-00-00
             NaN         00-00-C0-FF
       -Infinity         00-00-80-FF
        Infinity         00-00-80-7F
*/

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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