Decimal.GetBits Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Converts the value of a specified instance of Decimal to its equivalent binary representation.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- d
- Type: System.Decimal
A Decimal value.
Return Value
Type: System.Int32 ()A 32-bit signed integer array with four elements that contain the binary representation of d.
The binary representation of a Decimal number consists of a 1-bit sign, a 96-bit integer number, and a scaling factor used to divide the integer number and specify what portion of it is a decimal fraction. The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28.
The return value is a four-element array of 32-bit signed integers.
The first, second, and third elements of the returned array contain the low, middle, and high 32 bits of the 96-bit integer number.
The fourth element of the returned array contains the scale factor and sign. It consists of the following parts:
Bits 0 to 15, the lower word, are unused and must be zero.
Bits 16 to 23 must contain an exponent between 0 and 28, which indicates the power of 10 to divide the integer number.
Bits 24 to 30 are unused and must be zero.
Bit 31 contains the sign; 0 meaning positive, and 1 meaning negative.
Note that the bit representation differentiates between negative and positive zero. These values are treated as being equal in all operations.
The following code example uses the GetBits method to convert several Decimal values to their equivalent binary representations.
' Example of the Decimal.GetBits method. Module Example Const dataFmt As String = _ "{0,31} {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}" ' Display the Decimal.GetBits argument and the result array. Sub ShowDecimalGetBits(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal Argument As Decimal) Dim Bits As Integer() = Decimal.GetBits(Argument) outputBlock.Text &= String.Format(dataFmt, Argument, _ Bits(3), Bits(2), Bits(1), Bits(0)) & vbCrLf End Sub Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock) outputBlock.Text &= String.Format("This example of the " & _ "Decimal.GetBits( Decimal ) method " & vbCrLf & _ "generates the following output. It displays " & _ "the argument " & vbCrLf & "as a Decimal and the result " & _ "array in hexadecimal." & vbCrLf) & vbCrLf outputBlock.Text &= String.Format(dataFmt, "Argument", "Bits(3) & vbCrLf", _ "Bits(2)", "Bits(1)", "Bits(0)") outputBlock.Text &= String.Format(dataFmt, "--------", "-------", _ "-------", "-------", "-------") & vbCrLf ' Get internal bits for Decimal objects. ShowDecimalGetBits(outputBlock, 1D) ShowDecimalGetBits(outputBlock, 100000000000000D) ShowDecimalGetBits(outputBlock, 10000000000000000000000000000D) ShowDecimalGetBits(outputBlock, _ Decimal.Parse("100000000000000.00000000000000")) ShowDecimalGetBits(outputBlock, _ Decimal.Parse("1.0000000000000000000000000000")) ShowDecimalGetBits(outputBlock, 123456789D) ShowDecimalGetBits(outputBlock, 0.123456789D) ShowDecimalGetBits(outputBlock, 0.000000000123456789D) ShowDecimalGetBits(outputBlock, 0.000000000000000000123456789D) ShowDecimalGetBits(outputBlock, 4294967295D) ShowDecimalGetBits(outputBlock, 18446744073709551615D) ShowDecimalGetBits(outputBlock, Decimal.MaxValue) ShowDecimalGetBits(outputBlock, Decimal.MinValue) ShowDecimalGetBits(outputBlock, -7.9228162514264337593543950335D) End Sub End Module ' This example of the Decimal.GetBits( Decimal ) method ' generates the following output. It displays the argument ' as a Decimal and the result array in hexadecimal. ' ' Argument Bits(3) Bits(2) Bits(1) Bits(0) ' -------- ------- ------- ------- ------- ' 1 00000000 00000000 00000000 00000001 ' 100000000000000 00000000 00000000 00005AF3 107A4000 ' 10000000000000000000000000000 00000000 204FCE5E 3E250261 10000000 ' 100000000000000.00000000000000 000E0000 204FCE5E 3E250261 10000000 ' 1.0000000000000000000000000000 001C0000 204FCE5E 3E250261 10000000 ' 123456789 00000000 00000000 00000000 075BCD15 ' 0.123456789 00090000 00000000 00000000 075BCD15 ' 0.000000000123456789 00120000 00000000 00000000 075BCD15 ' 0.000000000000000000123456789 001B0000 00000000 00000000 075BCD15 ' 4294967295 00000000 00000000 00000000 FFFFFFFF ' 18446744073709551615 00000000 00000000 FFFFFFFF FFFFFFFF ' 79228162514264337593543950335 00000000 FFFFFFFF FFFFFFFF FFFFFFFF ' -79228162514264337593543950335 80000000 FFFFFFFF FFFFFFFF FFFFFFFF ' -7.9228162514264337593543950335 801C0000 FFFFFFFF FFFFFFFF FFFFFFFF