Decimal::GetBits Method
Converts the value of a specified instance of Decimal to its equivalent binary representation.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- d
- Type: System::Decimal
The value to convert.
Return Value
Type: array<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 means positive, and 1 means 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. using namespace System; const __wchar_t * dataFmt = L"{0,31} {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}"; // Display the Decimal::GetBits argument and the result array. void ShowDecimalGetBits( Decimal Argument ) { array<int>^Bits = Decimal::GetBits( Argument ); Console::WriteLine( gcnew String( dataFmt ), Argument, Bits[ 3 ], Bits[ 2 ], Bits[ 1 ], Bits[ 0 ] ); } int main() { Console::WriteLine( "This example of the " "Decimal::GetBits( Decimal ) method \ngenerates the " "following output. It displays the argument \nas a " "Decimal and the result array in hexadecimal.\n" ); Console::WriteLine( gcnew String( dataFmt ), "Argument", "Bits[3]", "Bits[2]", "Bits[1]", "Bits[0]" ); Console::WriteLine( gcnew String( dataFmt ), "--------", "-------", "-------", "-------", "-------" ); // Get internal bits for Decimal objects. ShowDecimalGetBits( Decimal::Parse( "1" ) ); ShowDecimalGetBits( Decimal::Parse( "100000000000000" ) ); ShowDecimalGetBits( Decimal::Parse( "10000000000000000000000000000" ) ); ShowDecimalGetBits( Decimal::Parse( "100000000000000.00000000000000" ) ); ShowDecimalGetBits( Decimal::Parse( "1.0000000000000000000000000000" ) ); ShowDecimalGetBits( Decimal::Parse( "123456789" ) ); ShowDecimalGetBits( Decimal::Parse( "0.123456789" ) ); ShowDecimalGetBits( Decimal::Parse( "0.000000000123456789" ) ); ShowDecimalGetBits( Decimal::Parse( "0.000000000000000000123456789" ) ); ShowDecimalGetBits( Decimal::Parse( "4294967295" ) ); ShowDecimalGetBits( Decimal::Parse( "18446744073709551615" ) ); ShowDecimalGetBits( Decimal::MaxValue ); ShowDecimalGetBits( Decimal::MinValue ); ShowDecimalGetBits( Decimal::Parse( "-7.9228162514264337593543950335" ) ); } /* 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 */
The following example uses the GetBits method to retrieve the component parts of an array. It then uses this array in the call to the Decimal constructor to instantiate a new Decimal value.
Module Example Public Sub Main() Dim values() As Decimal = { 1234.96d, -1234.96d } For Each value In values Dim parts() = Decimal.GetBits(value) Dim sign As Boolean = (parts(3) And &h80000000) <> 0 Dim scale As Byte = CByte((parts(3) >> 16) And &H7F) Dim newValue As New Decimal(parts(0), parts(1), parts(2), sign, scale) Console.WriteLine("{0} --> {1}", value, newValue) Next End Sub End Module ' The example displays the following output: ' 1234.96 --> 1234.96 ' -1234.96 --> -1234.96
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.