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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
)

Parameters

value
Type: System.Single

The number to convert.

Return Value

Type: System.Byte[]
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
*/

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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