BitConverter.GetBytes Method (Single) (System)

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.NET Framework Class Library
BitConverter.GetBytes Method (Single)

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

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
Syntax
Visual Basic
Public Shared Function GetBytes ( _
	value As Single _
) As Byte()
C#
public static byte[] GetBytes(
	float value
)
Visual C++
public:
static array<unsigned char>^ GetBytes(
	float value
)
F#
static member GetBytes : 
        value:float32 -> byte[]

Parameters

value
Type: System.Single
The number to convert.

Return Value

Type: System.Byte[]
An array of bytes with length 4.
Examples

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

Visual Basic

' Example of the BitConverter.GetBytes( Single ) method.
Imports System
Imports Microsoft.VisualBasic

Module GetBytesSingleDemo

    Const formatter As String = "{0,16:E7}{1,20}"

    ' Convert a Single argument to a Byte array and display it.
    Sub GetBytesSingle( argument As Single )

        Dim byteArray As Byte( ) = BitConverter.GetBytes( argument )
        Console.WriteLine( formatter, argument, _
            BitConverter.ToString( byteArray ) )
    End Sub 

    Sub Main( )

        Console.WriteLine( _
            "This example of the BitConverter.GetBytes( Single ) " & _
            vbCrLf & "method generates the following " & _
            "output." & vbCrLf )
        Console.WriteLine( formatter, "Single", "Byte array" )
        Console.WriteLine( formatter, "------", "----------" )

        ' Convert Single 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( Single.MinValue )
        GetBytesSingle( Single.MaxValue )
        GetBytesSingle( Single.Epsilon )
        GetBytesSingle( Single.NaN )
        GetBytesSingle( Single.NegativeInfinity )
        GetBytesSingle( Single.PositiveInfinity )
    End Sub 
End Module

' This example of the BitConverter.GetBytes( Single )
' method generates the following output.
' 
'           Single          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
C#

// 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
*/
Visual C++

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

// Convert a float argument to a byte array and display it.
void GetBytesSingle( float argument )
{
   array<Byte>^byteArray = BitConverter::GetBytes( argument );
   Console::WriteLine( "{0,16:E7}{1,20}", argument, BitConverter::ToString( byteArray ) );
}

int main()
{
   Console::WriteLine( "This example of the BitConverter::GetBytes( float ) "
   "\nmethod generates the following output.\n" );
   Console::WriteLine( "{0,16:E7}{1,20}", "float", "byte array" );
   Console::WriteLine( "{0,16:E7}{1,20}", "-----", "----------" );

   // 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( Single::MinValue );
   GetBytesSingle( Single::MaxValue );
   GetBytesSingle( Single::Epsilon );
   GetBytesSingle( Single::NaN );
   GetBytesSingle( Single::NegativeInfinity );
   GetBytesSingle( Single::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
*/
Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library
Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
See Also

Reference

BitConverter Class
GetBytes Overload
System Namespace