Decimal Construtores

Definição

Inicializa uma nova instância de Decimal.Initializes a new instance of Decimal.

Sobrecargas

Decimal(Double)

Inicializa uma nova instância de Decimal para o valor do número de ponto flutuante especificado de precisão dupla.Initializes a new instance of Decimal to the value of the specified double-precision floating-point number.

Decimal(Int32)

Inicializa uma nova instância de Decimal para o valor inteiro com sinal de 32 bits especificado.Initializes a new instance of Decimal to the value of the specified 32-bit signed integer.

Decimal(Int32[])

Inicializa uma nova instância de Decimal para um valor decimal representado no binário e contido em uma matriz especificada.Initializes a new instance of Decimal to a decimal value represented in binary and contained in a specified array.

Decimal(Int64)

Inicializa uma nova instância de Decimal para o valor inteiro com sinal de 64 bits especificado.Initializes a new instance of Decimal to the value of the specified 64-bit signed integer.

Decimal(Single)

Inicializa uma nova instância de Decimal para o valor do número de ponto flutuante especificado de precisão simples.Initializes a new instance of Decimal to the value of the specified single-precision floating-point number.

Decimal(UInt32)

Inicializa uma nova instância de Decimal para o valor inteiro sem sinal de 32 bits especificado.Initializes a new instance of Decimal to the value of the specified 32-bit unsigned integer.

Decimal(UInt64)

Inicializa uma nova instância de Decimal para o valor inteiro sem sinal de 64 bits especificado.Initializes a new instance of Decimal to the value of the specified 64-bit unsigned integer.

Decimal(Int32, Int32, Int32, Boolean, Byte)

Inicializa uma nova instância de Decimal de parâmetros que especificam as partes constituintes da instância.Initializes a new instance of Decimal from parameters specifying the instance's constituent parts.

Decimal(Double)

Inicializa uma nova instância de Decimal para o valor do número de ponto flutuante especificado de precisão dupla.Initializes a new instance of Decimal to the value of the specified double-precision floating-point number.

public:
 Decimal(double value);
public Decimal (double value);
new decimal : double -> decimal
Public Sub New (value As Double)

Parâmetros

value
Double

O valor a ser representado como um Decimal.The value to represent as a Decimal.

Exceções

value é maior que MaxValue ou menor que MinValue.value is greater than MaxValue or less than MinValue.

-ou--or- value é NaN, PositiveInfinity ou NegativeInfinity.value is NaN, PositiveInfinity, or NegativeInfinity.

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com um valor Double.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with a Double value.

// Example of the Decimal( double ) constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( double value, String^ valToStr )
{
   
   // Format and display the constructor.
   Console::Write( "{0,-34}", String::Format( "Decimal( {0} )", valToStr ) );
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(value);
      
      // Display the value if it was created successfully.
      Console::WriteLine( "{0,31}", decimalNum );
   }
   catch ( Exception^ ex ) 
   {
      
      // Display the exception type if an exception was thrown.
      Console::WriteLine( "{0,31}", GetExceptionType( ex ) );
   }

}

int main()
{
   Console::WriteLine( "This example of the Decimal( double ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-34}{1,31}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-34}{1,31}", "-----------", "------------------" );
   
   // Construct Decimal objects from double values.
   CreateDecimal( 1.23456789E+5, "1.23456789E+5" );
   CreateDecimal( 1.234567890123E+15, "1.234567890123E+15" );
   CreateDecimal( 1.2345678901234567E+25, "1.2345678901234567E+25" );
   CreateDecimal( 1.2345678901234567E+35, "1.2345678901234567E+35" );
   CreateDecimal( 1.23456789E-5, "1.23456789E-5" );
   CreateDecimal( 1.234567890123E-15, "1.234567890123E-15" );
   CreateDecimal( 1.2345678901234567E-25, "1.2345678901234567E-25" );
   CreateDecimal( 1.2345678901234567E-35, "1.2345678901234567E-35" );
   CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" );
}

/*
This example of the Decimal( double ) constructor
generates the following output.

Constructor                                    Value or Exception
-----------                                    ------------------
Decimal( 1.23456789E+5 )                               123456.789
Decimal( 1.234567890123E+15 )                    1234567890123000
Decimal( 1.2345678901234567E+25 )      12345678901234600000000000
Decimal( 1.2345678901234567E+35 )               OverflowException
Decimal( 1.23456789E-5 )                          0.0000123456789
Decimal( 1.234567890123E-15 )       0.000000000000001234567890123
Decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235
Decimal( 1.2345678901234567E-35 )                               0
Decimal( 1.0 / 7.0 )                            0.142857142857143
*/
// Example of the decimal( double ) constructor.
using System;

class DecimalCtorDoDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring( 
            exceptionType.LastIndexOf( '.' )+1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( double value, string valToStr )
    {
        // Format and display the constructor.
        Console.Write( "{0,-34}", 
            String.Format( "decimal( {0} )", valToStr ) );

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( value );

            // Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum );
        }
        catch( Exception ex )
        {
            // Display the exception type if an exception was thrown.
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) );
        }
    }
    
    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( double ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-34}{1,31}", "Constructor", 
            "Value or Exception" );
        Console.WriteLine( "{0,-34}{1,31}", "-----------", 
            "------------------" );

        // Construct decimal objects from double values.
        CreateDecimal( 1.23456789E+5, "1.23456789E+5" );
        CreateDecimal( 1.234567890123E+15, "1.234567890123E+15" );
        CreateDecimal( 1.2345678901234567E+25, 
            "1.2345678901234567E+25" );
        CreateDecimal( 1.2345678901234567E+35, 
            "1.2345678901234567E+35" );
        CreateDecimal( 1.23456789E-5, "1.23456789E-5" );
        CreateDecimal( 1.234567890123E-15, "1.234567890123E-15" );
        CreateDecimal( 1.2345678901234567E-25, 
            "1.2345678901234567E-25" );
        CreateDecimal( 1.2345678901234567E-35, 
            "1.2345678901234567E-35" );
        CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" );
    }
}

/*
This example of the decimal( double ) constructor
generates the following output.

Constructor                                    Value or Exception
-----------                                    ------------------
decimal( 1.23456789E+5 )                               123456.789
decimal( 1.234567890123E+15 )                    1234567890123000
decimal( 1.2345678901234567E+25 )      12345678901234600000000000
decimal( 1.2345678901234567E+35 )               OverflowException
decimal( 1.23456789E-5 )                          0.0000123456789
decimal( 1.234567890123E-15 )       0.000000000000001234567890123
decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235
decimal( 1.2345678901234567E-35 )                               0
decimal( 1.0 / 7.0 )                            0.142857142857143
*/
' Example of the Decimal( Double ) constructor.
Module DecimalCtorDoDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Double, valToStr As String )

        ' Format and display the constructor.
        Console.Write( "{0,-34}", _
            String.Format( "Decimal( {0} )", valToStr ) )

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( value )

            ' Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum )

        ' Display the exception type if an exception was thrown.
        Catch ex As Exception
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) )
        End Try
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Double ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-34}{1,31}", "Constructor", _
            "Value or Exception" )
        Console.WriteLine( "{0,-34}{1,31}", "-----------", _
            "------------------" )

        ' Construct Decimal objects from Double values.
        CreateDecimal( 1.23456789E+5, "1.23456789E+5" )                
        CreateDecimal( 1.234567890123E+15, "1.234567890123E+15" )                
        CreateDecimal( 1.2345678901234567E+25, _
            "1.2345678901234567E+25" )
        CreateDecimal( 1.2345678901234567E+35, _
            "1.2345678901234567E+35" )
        CreateDecimal( 1.23456789E-5, "1.23456789E-5" )                
        CreateDecimal( 1.234567890123E-15, "1.234567890123E-15" )      
        CreateDecimal( 1.2345678901234567E-25, _
            "1.2345678901234567E-25" ) 
        CreateDecimal( 1.2345678901234567E-35, _
            "1.2345678901234567E-35" ) 
        CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" ) 
    End Sub 
End Module 

' This example of the Decimal( Double ) constructor
' generates the following output.
' 
' Constructor                                    Value or Exception
' -----------                                    ------------------
' Decimal( 1.23456789E+5 )                               123456.789
' Decimal( 1.234567890123E+15 )                    1234567890123000
' Decimal( 1.2345678901234567E+25 )      12345678901234600000000000
' Decimal( 1.2345678901234567E+35 )               OverflowException
' Decimal( 1.23456789E-5 )                          0.0000123456789
' Decimal( 1.234567890123E-15 )       0.000000000000001234567890123
' Decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235
' Decimal( 1.2345678901234567E-35 )                               0
' Decimal( 1.0 / 7.0 )                            0.142857142857143

Comentários

Esse construtor Arredonda value para 15 dígitos significativos usando o arredondamento para o mais próximo.This constructor rounds value to 15 significant digits using rounding to nearest. Isso é feito mesmo que o número tenha mais de 15 dígitos e os dígitos menos significativos sejam zero.This is done even if the number has more than 15 digits and the less significant digits are zero.

Decimal(Int32)

Inicializa uma nova instância de Decimal para o valor inteiro com sinal de 32 bits especificado.Initializes a new instance of Decimal to the value of the specified 32-bit signed integer.

public:
 Decimal(int value);
public Decimal (int value);
new decimal : int -> decimal
Public Sub New (value As Integer)

Parâmetros

value
Int32

O valor a ser representado como um Decimal.The value to represent as a Decimal.

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com um valor Int32.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with an Int32 value.

// Example of the Decimal( int ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( int value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-30}{1,16}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( int ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-30}{1,16}", "Constructor", "Value" );
   Console::WriteLine( "{0,-30}{1,16}", "-----------", "-----" );
   
   // Construct Decimal objects from int values.
   CreateDecimal( Int32::MinValue, "Int32::MinValue" );
   CreateDecimal( Int32::MaxValue, "Int32::MaxValue" );
   CreateDecimal( 0, "0" );
   CreateDecimal( 999999999, "999999999" );
   CreateDecimal( 0x40000000, "0x40000000" );
   CreateDecimal( (int)0xC0000000, "(int)0xC0000000" );
}

/*
This example of the Decimal( int ) constructor
generates the following output.

Constructor                              Value
-----------                              -----
Decimal( Int32::MinValue )         -2147483648
Decimal( Int32::MaxValue )          2147483647
Decimal( 0 )                                 0
Decimal( 999999999 )                 999999999
Decimal( 0x40000000 )               1073741824
Decimal( (int)0xC0000000 )         -1073741824
*/
// Example of the decimal( int ) constructor.
using System;

class DecimalCtorIDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( int value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-30}{1,16}", ctor, decimalNum );
    }
    
    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( int ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-30}{1,16}", "Constructor", "Value" );
        Console.WriteLine( "{0,-30}{1,16}", "-----------", "-----" );

        // Construct decimal objects from int values.
        CreateDecimal( int.MinValue, "int.MinValue" );
        CreateDecimal( int.MaxValue, "int.MaxValue" );
        CreateDecimal( 0, "0" );
        CreateDecimal( 999999999, "999999999" );
        CreateDecimal( 0x40000000, "0x40000000" );
        CreateDecimal( unchecked( (int)0xC0000000 ), 
            "(int)0xC0000000" );
    }
}

/*
This example of the decimal( int ) constructor
generates the following output.

Constructor                              Value
-----------                              -----
decimal( int.MinValue )            -2147483648
decimal( int.MaxValue )             2147483647
decimal( 0 )                                 0
decimal( 999999999 )                 999999999
decimal( 0x40000000 )               1073741824
decimal( (int)0xC0000000 )         -1073741824
*/
' Example of the Decimal( Integer ) constructor.
Module DecimalCtorIDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Integer, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,16}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Integer ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-33}{1,16}", "Constructor", "Value" )
        Console.WriteLine( "{0,-33}{1,16}", "-----------", "-----" )

        ' Construct Decimal objects from Integer values.
        CreateDecimal( Integer.MinValue, "Integer.MinValue" )                
        CreateDecimal( Integer.MaxValue, "Integer.MaxValue" )                
        CreateDecimal( 0, "0" )                
        CreateDecimal( 999999999, "999999999" )                
        CreateDecimal( &H40000000, "&H40000000" )                
        CreateDecimal( &HC0000000, "&HC0000000" )                
    End Sub 
End Module 

' This example of the Decimal( Integer ) constructor
' generates the following output.
' 
' Constructor                                 Value
' -----------                                 -----
' Decimal( Integer.MinValue )           -2147483648
' Decimal( Integer.MaxValue )            2147483647
' Decimal( 0 )                                    0
' Decimal( 999999999 )                    999999999
' Decimal( &H40000000 )                  1073741824
' Decimal( &HC0000000 )                 -1073741824

Decimal(Int32[])

Inicializa uma nova instância de Decimal para um valor decimal representado no binário e contido em uma matriz especificada.Initializes a new instance of Decimal to a decimal value represented in binary and contained in a specified array.

public:
 Decimal(cli::array <int> ^ bits);
public Decimal (int[] bits);
new decimal : int[] -> decimal
Public Sub New (bits As Integer())

Parâmetros

bits
Int32[]

Uma matriz de inteiros com sinal de 32 bits que contém uma representação de um valor decimal.An array of 32-bit signed integers containing a representation of a decimal value.

Exceções

bits é null.bits is null.

O tamanho de bits não é 4.The length of the bits is not 4.

-ou--or- A representação do valor decimal em bits não é válida.The representation of the decimal value in bits is not valid.

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com uma matriz de quatro valores de Int32.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with an array of four Int32 values.

// Example of the Decimal( int __gc [ ] ) constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( array<int>^bits )
{
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {{ 0x{0:X}", bits[ 0 ] );
   String^ valOrExc;
   for ( int index = 1; index < bits->Length; index++ )
      ctor = String::Concat( ctor, String::Format( ", 0x{0:X}", bits[ index ] ) );
   ctor = String::Concat( ctor, " } )" );
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(bits);
      
      // Format the Decimal value for display.
      valOrExc = decimalNum.ToString();
   }
   catch ( Exception^ ex ) 
   {
      
      // Save the exception type if an exception was thrown.
      valOrExc = GetExceptionType( ex );
   }

   
   // Display the constructor and Decimal value or exception.
   int ctorLen = 76 - valOrExc->Length;
   
   // Display the data on one line if it will fit.
   if ( ctorLen > ctor->Length )
      Console::WriteLine( "{0}{1}", ctor->PadRight( ctorLen ), valOrExc );
   // Otherwise, display the data on two lines.
   else
   {
      Console::WriteLine( "{0}", ctor );
      Console::WriteLine( "{0,76}", valOrExc );
   }
}

int main()
{
   Console::WriteLine( "This example of the Decimal( int __gc [ ] ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-38}{1,38}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-38}{1,38}", "-----------", "------------------" );
   
   // Construct Decimal objects from integer arrays.
   array<Int32>^zero = {0,0,0,0};
   CreateDecimal( zero );
   array<Int32>^arrayShort = {0,0,0};
   CreateDecimal( arrayShort );
   array<Int32>^arrayLong = {0,0,0,0,0};
   CreateDecimal( arrayLong );
   array<Int32>^word0Data = {1000000000,0,0,0};
   CreateDecimal( word0Data );
   array<Int32>^word1Data = {0,1000000000,0,0};
   CreateDecimal( word1Data );
   array<Int32>^word2Data = {0,0,1000000000,0};
   CreateDecimal( word2Data );
   array<Int32>^word3Data = {0,0,0,1000000000};
   CreateDecimal( word3Data );
   array<Int32>^decMax = { -1,-1,-1,0};
   CreateDecimal( decMax );
   array<Int32>^decMin = { -1,-1,-1,0x80000000};
   CreateDecimal( decMin );
   array<Int32>^fracDig16 = { -1,0,0,0x100000};
   CreateDecimal( fracDig16 );
   array<Int32>^fracDig28 = { -1,0,0,0x1C0000};
   CreateDecimal( fracDig28 );
   array<Int32>^fracDig29 = { -1,0,0,0x1D0000};
   CreateDecimal( fracDig29 );
   array<Int32>^reserved = { -1,0,0,0x1C0001};
   CreateDecimal( reserved );
   array<Int32>^Same4Words = {0xF0000,0xF0000,0xF0000,0xF0000};
   CreateDecimal( Same4Words );
}

/*
This example of the Decimal( int __gc [ ] ) constructor
generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
Decimal( { 0x0, 0x0, 0x0, 0x0 } )                                          0
Decimal( { 0x0, 0x0, 0x0 } )                               ArgumentException
Decimal( { 0x0, 0x0, 0x0, 0x0, 0x0 } )                     ArgumentException
Decimal( { 0x3B9ACA00, 0x0, 0x0, 0x0 } )                          1000000000
Decimal( { 0x0, 0x3B9ACA00, 0x0, 0x0 } )                 4294967296000000000
Decimal( { 0x0, 0x0, 0x3B9ACA00, 0x0 } )       18446744073709551616000000000
Decimal( { 0x0, 0x0, 0x0, 0x3B9ACA00 } )                   ArgumentException
Decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0 } )
                                               79228162514264337593543950335
Decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000 } )
                                              -79228162514264337593543950335
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x100000 } )             0.0000004294967295
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0000 } ) 0.0000000000000000004294967295
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1D0000 } )              ArgumentException
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0001 } )              ArgumentException
Decimal( { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } )
                                                 18133887298.441562272235520
*/
// Example of the decimal( int[ ] ) constructor.
using System;

class DecimalCtorIArrDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring( 
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( int[ ] bits )
    {
        // Format the constructor for display.
        string ctor = String.Format( 
            "decimal( {{ 0x{0:X}", bits[ 0 ] );
        string valOrExc;
        
        for( int index = 1; index < bits.Length; index++ )
            ctor += String.Format( ", 0x{0:X}", bits[ index ] );
        ctor += " } )";

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( bits );

            // Format the decimal value for display.
            valOrExc = decimalNum.ToString( );
        }
        catch( Exception ex )
        {
            // Save the exception type if an exception was thrown.
            valOrExc = GetExceptionType( ex );
        }

        // Display the constructor and decimal value or exception.
        int ctorLen = 76 - valOrExc.Length;

        // Display the data on one line if it will fit.
        if( ctorLen > ctor.Length )
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ), 
                valOrExc );

        // Otherwise, display the data on two lines.
        else
        {
            Console.WriteLine( "{0}", ctor );
            Console.WriteLine( "{0,76}", valOrExc );
        }
    }
    
    public static void Main( )
    {
        Console.WriteLine( 
            "This example of the decimal( int[ ] ) constructor " +
            "\ngenerates the following output.\n" );
        Console.WriteLine( "{0,-38}{1,38}", "Constructor", 
            "Value or Exception" );
        Console.WriteLine( "{0,-38}{1,38}", "-----------", 
            "------------------" );

        // Construct decimal objects from integer arrays.
        CreateDecimal( new int[ ] { 0, 0, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 0, 0, 0 } );
        CreateDecimal( new int[ ] { 1000000000, 0, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 1000000000, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 1000000000, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 0, 1000000000 } );
        CreateDecimal( new int[ ] { -1, -1, -1, 0 } );
        CreateDecimal( new int[ ] 
            { -1, -1, -1, unchecked( (int)0x80000000 ) } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x100000 } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x1C0000 } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x1D0000 } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x1C0001 } );
        CreateDecimal( new int[ ] 
            { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } );
    }
}

/*
This example of the decimal( int[ ] ) constructor
generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
decimal( { 0x0, 0x0, 0x0, 0x0 } )                                          0
decimal( { 0x0, 0x0, 0x0 } )                               ArgumentException
decimal( { 0x0, 0x0, 0x0, 0x0, 0x0 } )                     ArgumentException
decimal( { 0x3B9ACA00, 0x0, 0x0, 0x0 } )                          1000000000
decimal( { 0x0, 0x3B9ACA00, 0x0, 0x0 } )                 4294967296000000000
decimal( { 0x0, 0x0, 0x3B9ACA00, 0x0 } )       18446744073709551616000000000
decimal( { 0x0, 0x0, 0x0, 0x3B9ACA00 } )                   ArgumentException
decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0 } )
                                               79228162514264337593543950335
decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000 } )
                                              -79228162514264337593543950335
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x100000 } )             0.0000004294967295
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0000 } ) 0.0000000000000000004294967295
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1D0000 } )              ArgumentException
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0001 } )              ArgumentException
decimal( { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } )
                                                 18133887298.441562272235520
*/
' Example of the Decimal( Integer( ) ) constructor.
Module DecimalCtorIArrDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( ByVal bits( ) As Integer )

        ' Format and save the constructor.
        Dim ctor As String = String.Format( "Decimal( {{ &H{0:X}", bits( 0 ) )
        Dim valOrExc As String
        Dim index As Integer
        For index = 1 to bits.Length - 1
            ctor &= String.Format( ", &H{0:X}", bits( index ) )
        Next index
        ctor &= " } )"

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( bits )

            ' Format the Decimal value for display.
            valOrExc = decimalNum.ToString( )

        ' Save the exception type if an exception was thrown.
        Catch ex As Exception
            valOrExc =  GetExceptionType( ex ) 
        End Try

        ' Display the constructor and Decimal value or exception.
        Dim ctorLen As Integer = 76 - valOrExc.Length
        If ctorLen > ctor.Length Then

            ' Display the data on one line if it will fit.
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ), _
                valOrExc )

        ' Otherwise, display the data on two lines.
        Else
            Console.WriteLine( "{0}", ctor )
            Console.WriteLine( "{0,76}", valOrExc )
        End If
    End Sub
    
    Sub Main( )

        Console.WriteLine( "This example of the " & _
            "Decimal( Integer( ) ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-38}{1,38}", "Constructor", _
            "Value or Exception" )
        Console.WriteLine( "{0,-38}{1,38}", "-----------", _
            "------------------" )

        ' Construct Decimal objects from Integer arrays.
        CreateDecimal( New Integer( ) { 0, 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 1000000000, 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 1000000000, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 1000000000, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 0, 1000000000 } )
        CreateDecimal( New Integer( ) { -1, -1, -1, 0 } )
        CreateDecimal( New Integer( ) { -1, -1, -1, &H80000000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H100000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H1C0000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H1D0000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H1C0001 } )
        CreateDecimal( New Integer( ) _
            { &HF0000, &HF0000, &HF0000, &HF0000 } )
    End Sub 
End Module 

' This example of the Decimal( Integer( ) ) constructor
' generates the following output.
' 
' Constructor                                               Value or Exception
' -----------                                               ------------------
' Decimal( { &H0, &H0, &H0, &H0 } )                                          0
' Decimal( { &H0, &H0, &H0 } )                               ArgumentException
' Decimal( { &H0, &H0, &H0, &H0, &H0 } )                     ArgumentException
' Decimal( { &H3B9ACA00, &H0, &H0, &H0 } )                          1000000000
' Decimal( { &H0, &H3B9ACA00, &H0, &H0 } )                 4294967296000000000
' Decimal( { &H0, &H0, &H3B9ACA00, &H0 } )       18446744073709551616000000000
' Decimal( { &H0, &H0, &H0, &H3B9ACA00 } )                   ArgumentException
' Decimal( { &HFFFFFFFF, &HFFFFFFFF, &HFFFFFFFF, &H0 } )
'                                                79228162514264337593543950335
' Decimal( { &HFFFFFFFF, &HFFFFFFFF, &HFFFFFFFF, &H80000000 } )
'                                               -79228162514264337593543950335
' Decimal( { &HFFFFFFFF, &H0, &H0, &H100000 } )             0.0000004294967295
' Decimal( { &HFFFFFFFF, &H0, &H0, &H1C0000 } ) 0.0000000000000000004294967295
' Decimal( { &HFFFFFFFF, &H0, &H0, &H1D0000 } )              ArgumentException
' Decimal( { &HFFFFFFFF, &H0, &H0, &H1C0001 } )              ArgumentException
' Decimal( { &HF0000, &HF0000, &HF0000, &HF0000 } )
'                                                  18133887298.441562272235520

Comentários

A representação binária de um número de Decimal consiste em um sinal de 1 bit, um número inteiro de 96 bits e um fator de dimensionamento usado para dividir o número inteiro e especificar qual parte dele é uma fração decimal.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. O fator de dimensionamento é implicitamente o número 10, elevado a um expoente que varia de 0 a 28.The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28.

bits é uma matriz longa de quatro elementos de inteiros com sinal de 32 bits.bits is a four-element long array of 32-bit signed integers.

bits [0], bits [1] e bits [2] contêm os bits inferior, médio e alto 32 do número inteiro de 96 bits.bits [0], bits [1], and bits [2] contain the low, middle, and high 32 bits of the 96-bit integer number.

bits [3] contém o fator de escala e o sinal e consiste nas seguintes partes:bits [3] contains the scale factor and sign, and consists of following parts:

Bits 0 a 15, a palavra inferior, não são usadas e devem ser zero.Bits 0 to 15, the lower word, are unused and must be zero.

Os bits 16 a 23 devem conter um expoente entre 0 e 28, que indica a potência de 10 para dividir o número inteiro.Bits 16 to 23 must contain an exponent between 0 and 28, which indicates the power of 10 to divide the integer number.

Os bits 24 a 30 não são usados e devem ser zero.Bits 24 to 30 are unused and must be zero.

O bit 31 contém o sinal; 0 significa positivo e 1 significa negativo.Bit 31 contains the sign; 0 meaning positive, and 1 meaning negative.

Um valor numérico pode ter várias representações binárias possíveis; todos são equivalentes igualmente válidos e numericamente.A numeric value might have several possible binary representations; all are equally valid and numerically equivalent. Observe que a representação de bits é diferenciada entre zero negativo e positivo.Note that the bit representation differentiates between negative and positive zero. Esses valores são tratados como sendo iguais em todas as operações.These values are treated as being equal in all operations.

Veja também

Decimal(Int64)

Inicializa uma nova instância de Decimal para o valor inteiro com sinal de 64 bits especificado.Initializes a new instance of Decimal to the value of the specified 64-bit signed integer.

public:
 Decimal(long value);
public Decimal (long value);
new decimal : int64 -> decimal
Public Sub New (value As Long)

Parâmetros

value
Int64

O valor a ser representado como um Decimal.The value to represent as a Decimal.

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com um valor Int64.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with an Int64 value.

// Example of the Decimal( __int64 ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( __int64 value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-35}{1,22}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( __int64 ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-35}{1,22}", "Constructor", "Value" );
   Console::WriteLine( "{0,-35}{1,22}", "-----------", "-----" );
   
   // Construct Decimal objects from __int64 values.
   CreateDecimal( Int64::MinValue, "Int64::MinValue" );
   CreateDecimal( Int64::MaxValue, "Int64::MaxValue" );
   CreateDecimal( 0, "0" );
   CreateDecimal( 999999999999999999, "999999999999999999" );
   CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
   CreateDecimal( 0xE000000000000000, "0xE000000000000000" );
}

/*
This example of the Decimal( __int64 ) constructor
generates the following output.

Constructor                                         Value
-----------                                         -----
Decimal( Int64::MinValue )           -9223372036854775808
Decimal( Int64::MaxValue )            9223372036854775807
Decimal( 0 )                                            0
Decimal( 999999999999999999 )          999999999999999999
Decimal( 0x2000000000000000 )         2305843009213693952
Decimal( 0xE000000000000000 )        -2305843009213693952
*/
// Example of the decimal( long ) constructor.
using System;

class DecimalCtorLDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( long value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-35}{1,22}", ctor, decimalNum );
    }
    
    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( long ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-35}{1,22}", "Constructor", "Value" );
        Console.WriteLine( "{0,-35}{1,22}", "-----------", "-----" );

        // Construct decimal objects from long values.
        CreateDecimal( long.MinValue, "long.MinValue" );
        CreateDecimal( long.MaxValue, "long.MaxValue" );
        CreateDecimal( 0L, "0L" );
        CreateDecimal( 999999999999999999, "999999999999999999" );
        CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
        CreateDecimal( unchecked( (long)0xE000000000000000 ), 
            "(long)0xE000000000000000" );
    }
}

/*
This example of the decimal( long ) constructor
generates the following output.

Constructor                                         Value
-----------                                         -----
decimal( long.MinValue )             -9223372036854775808
decimal( long.MaxValue )              9223372036854775807
decimal( 0 )                                            0
decimal( 999999999999999999 )          999999999999999999
decimal( 0x2000000000000000 )         2305843009213693952
decimal( (long)0xE000000000000000 )  -2305843009213693952
*/
' Example of the Decimal( Long ) constructor.
Module DecimalCtorLDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Long, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-30}{1,22}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Long ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-30}{1,22}", "Constructor", "Value" )
        Console.WriteLine( "{0,-30}{1,22}", "-----------", "-----" )

        ' Construct Decimal objects from Long values.
        CreateDecimal( Long.MinValue, "Long.MinValue" )                
        CreateDecimal( Long.MaxValue, "Long.MaxValue" )                
        CreateDecimal( 0L, "0" )                
        CreateDecimal( 999999999999999999, "999999999999999999" )                
        CreateDecimal( &H2000000000000000, "&H2000000000000000" )                
        CreateDecimal( &HE000000000000000, "&HE000000000000000" )                
    End Sub 
End Module 

' This example of the Decimal( Long ) constructor
' generates the following output.
' 
' Constructor                                    Value
' -----------                                    -----
' Decimal( Long.MinValue )        -9223372036854775808
' Decimal( Long.MaxValue )         9223372036854775807
' Decimal( 0 )                                       0
' Decimal( 999999999999999999 )     999999999999999999
' Decimal( &H2000000000000000 )    2305843009213693952
' Decimal( &HE000000000000000 )   -2305843009213693952

Decimal(Single)

Inicializa uma nova instância de Decimal para o valor do número de ponto flutuante especificado de precisão simples.Initializes a new instance of Decimal to the value of the specified single-precision floating-point number.

public:
 Decimal(float value);
public Decimal (float value);
new decimal : single -> decimal
Public Sub New (value As Single)

Parâmetros

value
Single

O valor a ser representado como um Decimal.The value to represent as a Decimal.

Exceções

value é maior que MaxValue ou menor que MinValue.value is greater than MaxValue or less than MinValue.

-ou--or- value é NaN, PositiveInfinity ou NegativeInfinity.value is NaN, PositiveInfinity, or NegativeInfinity.

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com um valor Single.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with a Single value.

// Example of the Decimal( float ) constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( float value, String^ valToStr )
{
   
   // Format and display the constructor.
   Console::Write( "{0,-27}", String::Format( "Decimal( {0} )", valToStr ) );
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(value);
      
      // Display the value if it was created successfully.
      Console::WriteLine( "{0,31}", decimalNum );
   }
   catch ( Exception^ ex ) 
   {
      
      // Display the exception type if an exception was thrown.
      Console::WriteLine( "{0,31}", GetExceptionType( ex ) );
   }

}

int main()
{
   Console::WriteLine( "This example of the Decimal( float ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-27}{1,31}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-27}{1,31}", "-----------", "------------------" );
   
   // Construct Decimal objects from float values.
   CreateDecimal( 1.2345E+5, "1.2345E+5" );
   CreateDecimal( 1.234567E+15, "1.234567E+15" );
   CreateDecimal( 1.23456789E+25, "1.23456789E+25" );
   CreateDecimal( 1.23456789E+35, "1.23456789E+35" );
   CreateDecimal( 1.2345E-5, "1.2345E-5" );
   CreateDecimal( 1.234567E-15, "1.234567E-15" );
   CreateDecimal( 1.23456789E-25, "1.23456789E-25" );
   CreateDecimal( 1.23456789E-35, "1.23456789E-35" );
   CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" );
}

/*
This example of the Decimal( float ) constructor
generates the following output.

Constructor                             Value or Exception
-----------                             ------------------
Decimal( 1.2345E+5 )                                123450
Decimal( 1.234567E+15 )                   1234567000000000
Decimal( 1.23456789E+25 )       12345680000000000000000000
Decimal( 1.23456789E+35 )                OverflowException
Decimal( 1.2345E-5 )                           0.000012345
Decimal( 1.234567E-15 )            0.000000000000001234567
Decimal( 1.23456789E-25 )   0.0000000000000000000000001235
Decimal( 1.23456789E-35 )                                0
Decimal( 1.0 / 7.0 )                             0.1428571
*/
// Example of the decimal( float ) constructor.
using System;

class DecimalCtorSDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring( 
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( float value, string valToStr )
    {
        // Format and display the constructor.
        Console.Write( "{0,-27}", 
            String.Format( "decimal( {0} )", valToStr ) );

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( value );

            // Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum );
        }
        catch( Exception ex )
        {
            // Display the exception type if an exception was thrown.
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) );
        }
    }
    
    public static void Main( )
    {

        Console.WriteLine( "This example of the decimal( float ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-27}{1,31}", "Constructor", 
            "Value or Exception" );
        Console.WriteLine( "{0,-27}{1,31}", "-----------", 
            "------------------" );

        // Construct decimal objects from float values.
        CreateDecimal( 1.2345E+5F, "1.2345E+5F" );
        CreateDecimal( 1.234567E+15F, "1.234567E+15F" );
        CreateDecimal( 1.23456789E+25F, "1.23456789E+25F" );
        CreateDecimal( 1.23456789E+35F, "1.23456789E+35F" );
        CreateDecimal( 1.2345E-5F, "1.2345E-5F" );
        CreateDecimal( 1.234567E-15F, "1.234567E-15F" );
        CreateDecimal( 1.23456789E-25F, "1.23456789E-25F" );
        CreateDecimal( 1.23456789E-35F, "1.23456789E-35F" );
        CreateDecimal( 1.0F / 7.0F, "1.0F / 7.0F" );
    }
}

/*
This example of the decimal( float ) constructor
generates the following output.

Constructor                             Value or Exception
-----------                             ------------------
decimal( 1.2345E+5F )                               123450
decimal( 1.234567E+15F )                  1234567000000000
decimal( 1.23456789E+25F )      12345680000000000000000000
decimal( 1.23456789E+35F )               OverflowException
decimal( 1.2345E-5F )                          0.000012345
decimal( 1.234567E-15F )           0.000000000000001234567
decimal( 1.23456789E-25F )  0.0000000000000000000000001235
decimal( 1.23456789E-35F )                               0
decimal( 1.0F / 7.0F )                           0.1428571
*/
' Example of the Decimal( Single ) constructor.
Module DecimalCtorSDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Single, valToStr As String )

        ' Format and display the constructor.
        Console.Write( "{0,-27}", _
            String.Format( "Decimal( {0} )", valToStr ) )

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( value )

            ' Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum )

        ' Display the exception type if an exception was thrown.
        Catch ex As Exception
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) )
        End Try
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Single ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-27}{1,31}", "Constructor", "Value or Exception" )
        Console.WriteLine( "{0,-27}{1,31}", "-----------", "------------------" )

        ' Construct Decimal objects from Single values.
        CreateDecimal( 1.2345E+5, "1.2345E+5" )                
        CreateDecimal( 1.234567E+15, "1.234567E+15" )                
        CreateDecimal( 1.23456789E+25, "1.23456789E+25" )                
        CreateDecimal( 1.23456789E+35, "1.23456789E+35" )                
        CreateDecimal( 1.2345E-5, "1.2345E-5" )                
        CreateDecimal( 1.234567E-15, "1.234567E-15" )                
        CreateDecimal( 1.23456789E-25, "1.23456789E-25" )                
        CreateDecimal( 1.23456789E-35, "1.23456789E-35" )                
        CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" )                
    End Sub 
End Module 

' This example of the Decimal( Single ) constructor
' generates the following output.
' 
' Constructor                             Value or Exception
' -----------                             ------------------
' Decimal( 1.2345E+5 )                                123450
' Decimal( 1.234567E+15 )                   1234567000000000
' Decimal( 1.23456789E+25 )       12345680000000000000000000
' Decimal( 1.23456789E+35 )                OverflowException
' Decimal( 1.2345E-5 )                           0.000012345
' Decimal( 1.234567E-15 )            0.000000000000001234567
' Decimal( 1.23456789E-25 )   0.0000000000000000000000001235
' Decimal( 1.23456789E-35 )                                0
' Decimal( 1.0 / 7.0 )                             0.1428571

Comentários

Esse construtor Arredonda value para 7 dígitos significativos usando o arredondamento para o mais próximo.This constructor rounds value to 7 significant digits using rounding to nearest. Isso é feito mesmo que o número tenha mais de 7 dígitos e os dígitos menos significativos sejam zero.This is done even if the number has more than 7 digits and the less significant digits are zero.

Decimal(UInt32)

Importante

Esta API não está em conformidade com CLS.

Inicializa uma nova instância de Decimal para o valor inteiro sem sinal de 32 bits especificado.Initializes a new instance of Decimal to the value of the specified 32-bit unsigned integer.

public:
 Decimal(System::UInt32 value);
[System.CLSCompliant(false)]
public Decimal (uint value);
new decimal : uint32 -> decimal
Public Sub New (value As UInteger)

Parâmetros

value
UInt32

O valor a ser representado como um Decimal.The value to represent as a Decimal.

Atributos

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com um valor UInt32.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with a UInt32 value.

// Example of the Decimal( unsigned int ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( unsigned int value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-30}{1,16}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( unsigned "
   "int ) constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-30}{1,16}", "Constructor", "Value" );
   Console::WriteLine( "{0,-30}{1,16}", "-----------", "-----" );
   
   // Construct Decimal objects from unsigned int values.
   CreateDecimal( UInt32::MinValue, "UInt32::MinValue" );
   CreateDecimal( UInt32::MaxValue, "UInt32::MaxValue" );
   CreateDecimal( Int32::MaxValue, "Int32::MaxValue" );
   CreateDecimal( 999999999, "999999999" );
   CreateDecimal( 0x40000000, "0x40000000" );
   CreateDecimal( 0xC0000000, "0xC0000000" );
}

/*
This example of the Decimal( unsigned int ) constructor
generates the following output.

Constructor                              Value
-----------                              -----
Decimal( UInt32::MinValue )                  0
Decimal( UInt32::MaxValue )         4294967295
Decimal( Int32::MaxValue )          2147483647
Decimal( 999999999 )                 999999999
Decimal( 0x40000000 )               1073741824
Decimal( 0xC0000000 )               3221225472
*/
// Example of the decimal( uint ) constructor.
using System;

class DecimalCtorUIDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( uint value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,16}", ctor, decimalNum );
    }
    
    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( uint ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-33}{1,16}", "Constructor", "Value" );
        Console.WriteLine( "{0,-33}{1,16}", "-----------", "-----" );

        // Construct decimal objects from uint values.
        CreateDecimal( uint.MinValue, "uint.MinValue" );
        CreateDecimal( uint.MaxValue, "uint.MaxValue" );
        CreateDecimal( (uint)int.MaxValue, "(uint)int.MaxValue" );
        CreateDecimal( 999999999U, "999999999U" );
        CreateDecimal( 0x40000000U, "0x40000000U" );
        CreateDecimal( 0xC0000000, "0xC0000000" );
    }
}

/*
This example of the decimal( uint ) constructor
generates the following output.

Constructor                                 Value
-----------                                 -----
decimal( uint.MinValue )                        0
decimal( uint.MaxValue )               4294967295
decimal( (uint)int.MaxValue )          2147483647
decimal( 999999999U )                   999999999
decimal( 0x40000000U )                 1073741824
decimal( 0xC0000000 )                  3221225472
*/
' Example of the Decimal( UInt32 ) constructor.
Module DecimalCtorUIDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As UInt32, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,16}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( UInt32 ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-33}{1,16}", "Constructor", "Value" )
        Console.WriteLine( "{0,-33}{1,16}", "-----------", "-----" )

        ' Construct Decimal objects from UInt32 values.
        ' UInt32.MinValue and UInt32.MaxValue are not defined in VB.
        CreateDecimal( Convert.ToUInt32( 0 ), """UInt32.MinValue""" )
        CreateDecimal( Convert.ToUInt32( 4294967295 ), _
            """UInt32.MaxValue""" )
        CreateDecimal( Convert.ToUInt32( Integer.MaxValue ), _
            "Integer.MaxValue" )              
        CreateDecimal( Convert.ToUInt32( 999999999 ), "999999999" ) 
        CreateDecimal( Convert.ToUInt32( &H40000000 ), "&H40000000" ) 
        CreateDecimal( Convert.ToUInt32( &HC0000000L ), "&HC0000000" )
    End Sub 
End Module 

' This example of the Decimal( UInt32 ) constructor
' generates the following output.
' 
' Constructor                                 Value
' -----------                                 -----
' Decimal( "UInt32.MinValue" )                    0
' Decimal( "UInt32.MaxValue" )           4294967295
' Decimal( Integer.MaxValue )            2147483647
' Decimal( 999999999 )                    999999999
' Decimal( &H40000000 )                  1073741824
' Decimal( &HC0000000 )                  3221225472

Decimal(UInt64)

Importante

Esta API não está em conformidade com CLS.

Inicializa uma nova instância de Decimal para o valor inteiro sem sinal de 64 bits especificado.Initializes a new instance of Decimal to the value of the specified 64-bit unsigned integer.

public:
 Decimal(System::UInt64 value);
[System.CLSCompliant(false)]
public Decimal (ulong value);
new decimal : uint64 -> decimal
Public Sub New (value As ULong)

Parâmetros

value
UInt64

O valor a ser representado como um Decimal.The value to represent as a Decimal.

Atributos

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com um valor UInt64.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with a UInt64 value.

// Example of the Decimal( unsigned __int64 ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( unsigned __int64 value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-33}{1,22}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( unsigned "
   "__int64 ) constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-33}{1,22}", "Constructor", "Value" );
   Console::WriteLine( "{0,-33}{1,22}", "-----------", "-----" );
   
   // Construct Decimal objects from unsigned __int64 values.
   CreateDecimal( UInt64::MinValue, "UInt64::MinValue" );
   CreateDecimal( UInt64::MaxValue, "UInt64::MaxValue" );
   CreateDecimal( Int64::MaxValue, "Int64::MaxValue" );
   CreateDecimal( 999999999999999999, "999999999999999999" );
   CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
   CreateDecimal( 0xE000000000000000, "0xE000000000000000" );
}

/*
This example of the Decimal( unsigned __int64 ) constructor
generates the following output.

Constructor                                       Value
-----------                                       -----
Decimal( UInt64::MinValue )                           0
Decimal( UInt64::MaxValue )        18446744073709551615
Decimal( Int64::MaxValue )          9223372036854775807
Decimal( 999999999999999999 )        999999999999999999
Decimal( 0x2000000000000000 )       2305843009213693952
Decimal( 0xE000000000000000 )      16140901064495857664
*/
// Example of the decimal( ulong ) constructor.
using System;

class DecimalCtorLDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( ulong value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-35}{1,22}", ctor, decimalNum );
    }
    
    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( ulong ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-35}{1,22}", "Constructor", "Value" );
        Console.WriteLine( "{0,-35}{1,22}", "-----------", "-----" );

        // Construct decimal objects from ulong values.
        CreateDecimal( ulong.MinValue, "ulong.MinValue" );
        CreateDecimal( ulong.MaxValue, "ulong.MaxValue" );
        CreateDecimal( long.MaxValue, "long.MaxValue" );
        CreateDecimal( 999999999999999999, "999999999999999999" );
        CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
        CreateDecimal( 0xE000000000000000, "0xE000000000000000" );
    }
}

/*
This example of the decimal( ulong ) constructor
generates the following output.

Constructor                                         Value
-----------                                         -----
decimal( ulong.MinValue )                               0
decimal( ulong.MaxValue )            18446744073709551615
decimal( long.MaxValue )              9223372036854775807
decimal( 999999999999999999 )          999999999999999999
decimal( 0x2000000000000000 )         2305843009213693952
decimal( 0xE000000000000000 )        16140901064495857664
*/
' Example of the Decimal( UInt64 ) constructor.
Module DecimalCtorULDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As UInt64, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,22}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( UInt64 ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-33}{1,22}", "Constructor", "Value" )
        Console.WriteLine( "{0,-33}{1,22}", "-----------", "-----" )

        ' Construct Decimal objects from UInt64 values.
        ' UInt64.MinValue and UInt64.MaxValue are not defined in VB.
        CreateDecimal( Convert.ToUInt64( 0 ), """UInt64.MinValue""" )
        CreateDecimal( Convert.ToUInt64( 18446744073709551615D ), _
            """UInt64.MaxValue""" )
        CreateDecimal( Convert.ToUInt64( Long.MaxValue ), _
            "Long.MaxValue" )              
        CreateDecimal( Convert.ToUInt64( 999999999999999999 ), _
            "999999999999999999" )                
        CreateDecimal( Convert.ToUInt64( &H2000000000000000 ), _
            "&H2000000000000000" )                
        CreateDecimal( Convert.ToUInt64( 16140901064495857664.0 ), _
            "16140901064495857664.0" )                
    End Sub 
End Module 

' This example of the Decimal( UInt64 ) constructor
' generates the following output.
' 
' Constructor                                       Value
' -----------                                       -----
' Decimal( "UInt64.MinValue" )                          0
' Decimal( "UInt64.MaxValue" )       18446744073709551615
' Decimal( Long.MaxValue )            9223372036854775807
' Decimal( 999999999999999999 )        999999999999999999
' Decimal( &H2000000000000000 )       2305843009213693952
' Decimal( 16140901064495857664.0 )  16140901064495857664

Decimal(Int32, Int32, Int32, Boolean, Byte)

Inicializa uma nova instância de Decimal de parâmetros que especificam as partes constituintes da instância.Initializes a new instance of Decimal from parameters specifying the instance's constituent parts.

public:
 Decimal(int lo, int mid, int hi, bool isNegative, System::Byte scale);
public Decimal (int lo, int mid, int hi, bool isNegative, byte scale);
new decimal : int * int * int * bool * byte -> decimal
Public Sub New (lo As Integer, mid As Integer, hi As Integer, isNegative As Boolean, scale As Byte)

Parâmetros

lo
Int32

Os 32 bits inferiores de um inteiro de 96 bits.The low 32 bits of a 96-bit integer.

mid
Int32

Os 32 bits intermediários de um inteiro de 96 bits.The middle 32 bits of a 96-bit integer.

hi
Int32

Os 32 bits superiores de um inteiro de 96 bits.The high 32 bits of a 96-bit integer.

isNegative
Boolean

true para indicar um número negativo; false para indicar um número positivo.true to indicate a negative number; false to indicate a positive number.

scale
Byte

Uma potência de 10, variando de 0 a 28.A power of 10 ranging from 0 to 28.

Exceções

scale é maior que 28.scale is greater than 28.

Exemplos

O exemplo de código a seguir cria vários Decimal números usando a sobrecarga do construtor que Inicializa uma estrutura de Decimal com três palavras de valor Int32, um sinal de Boolean e um fator de escala de Byte.The following code example creates several Decimal numbers using the constructor overload that initializes a Decimal structure with three Int32 value words, a Boolean sign, and a Byte scale factor.

// Example of the Decimal( int, int, int, bool, unsigned char ) 
// constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( int low, int mid, int high, bool isNeg, unsigned char scale )
{
   
   // Format the constructor for display.
   array<Object^>^boxedParams = gcnew array<Object^>(5);
   boxedParams[ 0 ] = low;
   boxedParams[ 1 ] = mid;
   boxedParams[ 2 ] = high;
   boxedParams[ 3 ] = isNeg;
   boxedParams[ 4 ] = scale;
   String^ ctor = String::Format( "Decimal( {0}, {1}, {2}, {3}, {4} )", boxedParams );
   String^ valOrExc;
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(low,mid,high,isNeg,scale);
      
      // Format and save the Decimal value.
      valOrExc = decimalNum.ToString();
   }
   catch ( Exception^ ex ) 
   {
      
      // Save the exception type if an exception was thrown.
      valOrExc = GetExceptionType( ex );
   }

   
   // Display the constructor and Decimal value or exception.
   int ctorLen = 76 - valOrExc->Length;
   
   // Display the data on one line if it will fit.
   if ( ctorLen > ctor->Length )
      Console::WriteLine( "{0}{1}", ctor->PadRight( ctorLen ), valOrExc );
   // Otherwise, display the data on two lines.
   else
   {
      Console::WriteLine( "{0}", ctor );
      Console::WriteLine( "{0,76}", valOrExc );
   }
}

int main()
{
   Console::WriteLine( "This example of the Decimal( int, int, "
   "int, bool, unsigned char ) \nconstructor "
   "generates the following output.\n" );
   Console::WriteLine( "{0,-38}{1,38}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-38}{1,38}", "-----------", "------------------" );
   
   // Construct Decimal objects from double values.
   CreateDecimal( 0, 0, 0, false, 0 );
   CreateDecimal( 0, 0, 0, false, 27 );
   CreateDecimal( 0, 0, 0, true, 0 );
   CreateDecimal( 1000000000, 0, 0, false, 0 );
   CreateDecimal( 0, 1000000000, 0, false, 0 );
   CreateDecimal( 0, 0, 1000000000, false, 0 );
   CreateDecimal( 1000000000, 1000000000, 1000000000, false, 0 );
   CreateDecimal(  -1, -1, -1, false, 0 );
   CreateDecimal(  -1, -1, -1, true, 0 );
   CreateDecimal(  -1, -1, -1, false, 15 );
   CreateDecimal(  -1, -1, -1, false, 28 );
   CreateDecimal(  -1, -1, -1, false, 29 );
   CreateDecimal( Int32::MaxValue, 0, 0, false, 18 );
   CreateDecimal( Int32::MaxValue, 0, 0, false, 28 );
   CreateDecimal( Int32::MaxValue, 0, 0, true, 28 );
}

/*
This example of the Decimal( int, int, int, bool, unsigned char )
constructor generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
Decimal( 0, 0, 0, False, 0 )                                               0
Decimal( 0, 0, 0, False, 27 )                                              0
Decimal( 0, 0, 0, True, 0 )                                                0
Decimal( 1000000000, 0, 0, False, 0 )                             1000000000
Decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
Decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
Decimal( 1000000000, 1000000000, 1000000000, False, 0 )
                                               18446744078004518913000000000
Decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
Decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
Decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
Decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
Decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
Decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
Decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
Decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647
*/
// Example of the decimal( int, int, int, bool, byte ) constructor.
using System;

class DecimalCtorIIIBByDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring( 
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( int low, int mid, int high, 
        bool isNeg, byte scale )
    {
        // Format the constructor for display.
        string ctor = String.Format( 
            "decimal( {0}, {1}, {2}, {3}, {4} )", 
            low, mid, high, isNeg, scale );
        string valOrExc;

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( 
                low, mid, high, isNeg, scale );

            // Format and save the decimal value.
            valOrExc = decimalNum.ToString( );
        }
        catch( Exception ex )
        {
            // Save the exception type if an exception was thrown.
            valOrExc = GetExceptionType( ex );
        }

        // Display the constructor and decimal value or exception.
        int ctorLen = 76 - valOrExc.Length;

        // Display the data on one line if it will fit.
        if ( ctorLen > ctor.Length )
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ), 
                valOrExc );

        // Otherwise, display the data on two lines.
        else
        {
            Console.WriteLine( "{0}", ctor );
            Console.WriteLine( "{0,76}", valOrExc );
        }
    }
    
    public static void Main( )
    {

        Console.WriteLine( "This example of the decimal( int, int, " +
            "int, bool, byte ) \nconstructor " +
            "generates the following output.\n" );
        Console.WriteLine( "{0,-38}{1,38}", "Constructor", 
            "Value or Exception" );
        Console.WriteLine( "{0,-38}{1,38}", "-----------", 
            "------------------" );

        // Construct decimal objects from the component fields.
        CreateDecimal( 0, 0, 0, false, 0 );
        CreateDecimal( 0, 0, 0, false, 27 );
        CreateDecimal( 0, 0, 0, true, 0 );
        CreateDecimal( 1000000000, 0, 0, false, 0 );
        CreateDecimal( 0, 1000000000, 0, false, 0 );
        CreateDecimal( 0, 0, 1000000000, false, 0 );
        CreateDecimal( 1000000000, 1000000000, 1000000000, false, 0 );
        CreateDecimal( -1, -1, -1, false, 0 );
        CreateDecimal( -1, -1, -1, true, 0 );
        CreateDecimal( -1, -1, -1, false, 15 );
        CreateDecimal( -1, -1, -1, false, 28 );
        CreateDecimal( -1, -1, -1, false, 29 );
        CreateDecimal( int.MaxValue, 0, 0, false, 18 );
        CreateDecimal( int.MaxValue, 0, 0, false, 28 );
        CreateDecimal( int.MaxValue, 0, 0, true, 28 );
    }
}

/*
This example of the decimal( int, int, int, bool, byte )
constructor generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
decimal( 0, 0, 0, False, 0 )                                               0
decimal( 0, 0, 0, False, 27 )                                              0
decimal( 0, 0, 0, True, 0 )                                                0
decimal( 1000000000, 0, 0, False, 0 )                             1000000000
decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
decimal( 1000000000, 1000000000, 1000000000, False, 0 )
                                               18446744078004518913000000000
decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647
*/
' Example of the Decimal( Integer, Integer, Integer, Boolean, Byte ) 
' constructor.
Module DecimalCtorIIIBByDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( low As Integer, mid As Integer, _
        high As Integer, isNeg As Boolean, scale as Byte )

        ' Format the constructor for display.
        Dim ctor As String = String.Format( _
            "Decimal( {0}, {1}, {2}, {3}, {4} )", _
            low, mid, high, isNeg, scale )
        Dim valOrExc As String

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( _
                low, mid, high, isNeg, scale )

            ' Format and save the Decimal value.
            valOrExc = decimalNum.ToString( )

        ' Save the exception type if an exception was thrown.
        Catch ex As Exception
            valOrExc =  GetExceptionType( ex ) 
        End Try

        ' Display the constructor and Decimal value or exception.
        Dim ctorLen = 76 - valOrExc.Length
        If ctorLen > ctor.Length Then

            ' Display the data on one line if it will fit.
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ), _
                valOrExc )

        ' Otherwise, display the data on two lines.
        Else
            Console.WriteLine( "{0}", ctor )
            Console.WriteLine( "{0,76}", valOrExc )
        End If
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Integer, Integer, " & _
            "Integer, Boolean, Byte ) " & vbCrLf & "constructor " & _
            "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-38}{1,38}", "Constructor", _
            "Value or Exception" )
        Console.WriteLine( "{0,-38}{1,38}", "-----------", _
            "------------------" )

        ' Construct Decimal objects from the component fields.
        CreateDecimal( 0, 0, 0, False, 0 )                
        CreateDecimal( 0, 0, 0, False, 27 )                
        CreateDecimal( 0, 0, 0, True, 0 )                
        CreateDecimal( 1000000000, 0, 0, False, 0 )                
        CreateDecimal( 0, 1000000000, 0, False, 0 )                
        CreateDecimal( 0, 0, 1000000000, False, 0 )                
        CreateDecimal( 1000000000, 1000000000, 1000000000, False, 0 )
        CreateDecimal( -1, -1, -1, False, 0 )                
        CreateDecimal( -1, -1, -1, True, 0 )                
        CreateDecimal( -1, -1, -1, False, 15 )                
        CreateDecimal( -1, -1, -1, False, 28 )                
        CreateDecimal( -1, -1, -1, False, 29 )                
        CreateDecimal( Integer.MaxValue, 0, 0, False, 18 )                
        CreateDecimal( Integer.MaxValue, 0, 0, False, 28 )                
        CreateDecimal( Integer.MaxValue, 0, 0, True, 28 )                
    End Sub 
End Module 

' This example of the Decimal( Integer, Integer, Integer, Boolean, Byte )
' constructor generates the following output.
' 
' Constructor                                               Value or Exception
' -----------                                               ------------------
' Decimal( 0, 0, 0, False, 0 )                                               0
' Decimal( 0, 0, 0, False, 27 )                                              0
' Decimal( 0, 0, 0, True, 0 )                                                0
' Decimal( 1000000000, 0, 0, False, 0 )                             1000000000
' Decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
' Decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
' Decimal( 1000000000, 1000000000, 1000000000, False, 0 )
'                                                18446744078004518913000000000
' Decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
' Decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
' Decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
' Decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
' Decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
' Decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
' Decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
' Decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647

O exemplo a seguir usa o método GetBits para recuperar as partes do componente de uma matriz.The following example uses the GetBits method to retrieve the component parts of an array. Em seguida, ele usa essa matriz na chamada para o Construtor Decimal(Int32, Int32, Int32, Boolean, Byte) para instanciar um novo valor de Decimal.It then uses this array in the call to the Decimal(Int32, Int32, Int32, Boolean, Byte) constructor to instantiate a new Decimal value.

using System;

public class Example
{
   public static void Main()
   {
      Decimal[] values = { 1234.96m, -1234.96m };
      foreach (var value in values) {
         int[] parts = Decimal.GetBits(value);
         bool sign = (parts[3] & 0x80000000) != 0;
   
         byte scale = (byte) ((parts[3] >> 16) & 0x7F); 
         Decimal newValue = new Decimal(parts[0], parts[1], parts[2], sign, scale);
         Console.WriteLine("{0} --> {1}", value, newValue);
      }
   }
}
// The example displays the following output:
//       1234.96 --> 1234.96
//       -1234.96 --> -1234.96
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

Comentários

A representação binária de um número de Decimal consiste em um sinal de 1 bit, um número inteiro de 96 bits e um fator de dimensionamento usado para dividir o número inteiro e especificar qual parte dele é uma fração decimal.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. O fator de dimensionamento é implicitamente o número 10 elevado a um expoente que varia de 0 a 28.The scaling factor is implicitly the number 10 raised to an exponent ranging from 0 to 28.

Aplica-se a