Math.Sign Método

Referencia

Definición

Espacio de nombres:: System

Ensamblado:: System.Runtime.dll

Ensamblado:: System.Runtime.Extensions.dll

Ensamblado:: mscorlib.dll

Ensamblado:: netstandard.dll

Importante

Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.

Devuelve un entero que indica el signo de un número.

Sobrecargas

Sign(IntPtr)	Devuelve un entero que indica el signo de un entero con signo de tamaño nativo con signo.
Sign(Single)	Devuelve un entero que indica el signo de un número de punto flotante de precisión sencilla.
Sign(SByte)	Devuelve un entero que indica el signo de un entero de 8 bits con signo.
Sign(Int64)	Devuelve un entero que indica el signo de un entero de 64 bits con signo.
Sign(Double)	Devuelve un entero que indica el signo de un número de punto flotante de precisión doble.
Sign(Int16)	Devuelve un entero que indica el signo de un entero de 16 bits con signo.
Sign(Decimal)	Devuelve un entero que indica el signo de un número decimal.
Sign(Int32)	Devuelve un entero que indica el signo de un entero de 32 bits con signo.

Sign(IntPtr)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un entero con signo de tamaño nativo con signo.

public:
 static int Sign(IntPtr value);

public static int Sign (nint value);

public static int Sign (IntPtr value);

static member Sign : nativeint -> int

Public Shared Function Sign (value As IntPtr) As Integer

Parámetros

value: IntPtr
nint

nativeint

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(IntPtr) para determinar el signo de un valor de IntPtr y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

Se aplica a

Sign(Single)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un número de punto flotante de precisión sencilla.

public:
 static int Sign(float value);

public static int Sign (float value);

static member Sign : single -> int

Public Shared Function Sign (value As Single) As Integer

Parámetros

value: Single

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Excepciones

ArithmeticException

value es igual a NaN.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(Single) para determinar el signo de un valor de Single y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Sign(SByte)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Importante

Esta API no es conforme a CLS.

Devuelve un entero que indica el signo de un entero de 8 bits con signo.

public:
 static int Sign(System::SByte value);

[System.CLSCompliant(false)]
public static int Sign (sbyte value);

[<System.CLSCompliant(false)>]
static member Sign : sbyte -> int

Public Shared Function Sign (value As SByte) As Integer

Parámetros

value: SByte

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Atributos: CLSCompliantAttribute

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(SByte) para determinar el signo de un valor de SByte y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Sign(Int64)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un entero de 64 bits con signo.

public:
 static int Sign(long value);

public static int Sign (long value);

static member Sign : int64 -> int

Public Shared Function Sign (value As Long) As Integer

Parámetros

value: Int64

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(Int64) para determinar el signo de un valor de Int64 y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Sign(Double)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un número de punto flotante de precisión doble.

public:
 static int Sign(double value);

public static int Sign (double value);

static member Sign : double -> int

Public Shared Function Sign (value As Double) As Integer

Parámetros

value: Double

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Excepciones

ArithmeticException

value es igual a NaN.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(Double) para determinar el signo de un valor de Double y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Sign(Int16)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un entero de 16 bits con signo.

public:
 static int Sign(short value);

public static int Sign (short value);

static member Sign : int16 -> int

Public Shared Function Sign (value As Short) As Integer

Parámetros

value: Int16

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(Int16) para determinar el signo de un valor de Int16 y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Sign(Decimal)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un número decimal.

public:
 static int Sign(System::Decimal value);

public static int Sign (decimal value);

static member Sign : decimal -> int

Public Shared Function Sign (value As Decimal) As Integer

Parámetros

value: Decimal

Número decimal con signo.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(Decimal) para determinar el signo de un valor de Decimal y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Sign(Int32)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Devuelve un entero que indica el signo de un entero de 32 bits con signo.

public:
 static int Sign(int value);

public static int Sign (int value);

static member Sign : int -> int

Public Shared Function Sign (value As Integer) As Integer

Parámetros

value: Int32

Número firmado.

Devoluciones

Int32

Número que indica el signo de value, como se muestra en la tabla siguiente.

Valor devuelto	Significado
-1	`value` es menor que cero.
0	`value` es igual a cero.
1	`value` es mayor que cero.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el método Sign(Int32) para determinar el signo de un valor de Int32 y mostrarlo en la consola.

// This example demonstrates Math.Sign()
using namespace System;
String^ Test( int compare )
{
   if ( compare == 0 )
      return "equal to";
   else
   if ( compare < 0 )
      return "less than";
   else
      return "greater than";
}

int main()
{
   String^ str = "{0}: {1,3} is {2} zero.";
   String^ nl = Environment::NewLine;
   Byte xByte1 = 0;
   short xShort1 = -2;
   int xInt1 = -3;
   long xLong1 = -4;
   float xSingle1 = 0.0f;
   double xDouble1 = 6.0;
   Decimal xDecimal1 = -7;
   
   // The following type is not CLS-compliant.
   SByte xSbyte1 = -101;
   Console::WriteLine( "{0}Test the sign of the following types of values:", nl );
   Console::WriteLine( str, "Byte   ", xByte1, Test( Math::Sign( xByte1 ) ) );
   Console::WriteLine( str, "Int16  ", xShort1, Test( Math::Sign( xShort1 ) ) );
   Console::WriteLine( str, "Int32  ", xInt1, Test( Math::Sign( xInt1 ) ) );
   Console::WriteLine( str, "Int64  ", xLong1, Test( Math::Sign( xLong1 ) ) );
   Console::WriteLine( str, "Single ", xSingle1, Test( Math::Sign( xSingle1 ) ) );
   Console::WriteLine( str, "Double ", xDouble1, Test( Math::Sign( xDouble1 ) ) );
   Console::WriteLine( str, "Decimal", xDecimal1, Test( Math::Sign( xDecimal1 ) ) );
   
   //
   Console::WriteLine( "{0}The following type is not CLS-compliant.", nl );
   Console::WriteLine( str, "SByte  ", xSbyte1, Test( Math::Sign( xSbyte1 ) ) );
}

/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
using System;

class Sample
{
    public static void Main()
    {
        string str = "{0}: {1,3} is {2} zero.";
        string nl = Environment.NewLine;
        byte     xByte1    = 0;
        short    xShort1   = -2;
        int      xInt1     = -3;
        long     xLong1    = -4;
        float    xSingle1  = 0.0f;
        double   xDouble1  = 6.0;
        Decimal  xDecimal1 = -7m;
        nint     xIntPtr1  = 8;

        // The following type is not CLS-compliant.
        sbyte    xSbyte1   = -101;

        Console.WriteLine($"{nl}Test the sign of the following types of values:");
        Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)));
        Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)));
        Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)));
        Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)));
        Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)));
        Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)));
        Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)));
        Console.WriteLine(str, "IntPtr", xIntPtr1, Test(Math.Sign(xIntPtr1)));

        Console.WriteLine($"{nl}The following type is not CLS-compliant.");
        Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)));
    }

    public static string Test(int compare)
    {
        if (compare == 0)
            return "equal to";
        else if (compare < 0)
            return "less than";
        else
            return "greater than";
    }
}
/*
This example produces the following results:

Test the sign of the following types of values:
Byte   :   0 is equal to zero.
Int16  :  -2 is less than zero.
Int32  :  -3 is less than zero.
Int64  :  -4 is less than zero.
Single :   0 is equal to zero.
Double :   6 is greater than zero.
Decimal:  -7 is less than zero.
IntPtr:    8 is greater than zero.

The following type is not CLS-compliant.
SByte  : -101 is less than zero.
*/

// This example demonstrates Math.Sign()
// In F#, the sign function may be used instead
open System

let test = function
    | 0 ->
        "equal to"
    | x when x < 0 ->
        "less than"
    | _ ->
        "greater than"

let print typ a b = 
    printfn $"{typ}: {a,3} is {b} zero."

let xByte1    = 0uy
let xShort1   = -2s
let xInt1     = -3
let xLong1    = -4L
let xSingle1  = 0f
let xDouble1  = 6.
let xDecimal1 = -7m
let xIntPtr1  = 8

// The following type is not CLS-compliant.
let xSbyte1   = -101y

printfn "\nTest the sign of the following types of values:"
print "Byte   " xByte1 (test (Math.Sign xByte1))
print "Int16  " xShort1 (test (Math.Sign xShort1))
print "Int32  " xInt1 (test (Math.Sign xInt1))
print "Int64  " xLong1 (test (Math.Sign xLong1))
print "Single " xSingle1 (test (Math.Sign xSingle1))
print "Double " xDouble1 (test (Math.Sign xDouble1))
print "Decimal" xDecimal1 (test (Math.Sign xDecimal1))
print "IntPtr"  xIntPtr1 (test (Math.Sign xIntPtr1))

printfn "\nThe following type is not CLS-compliant."
print "SByte  " xSbyte1 (test (Math.Sign xSbyte1))

// This example produces the following results:
//     Test the sign of the following types of values:
//     Byte   :   0 is equal to zero.
//     Int16  :  -2 is less than zero.
//     Int32  :  -3 is less than zero.
//     Int64  :  -4 is less than zero.
//     Single :   0 is equal to zero.
//     Double :   6 is greater than zero.
//     Decimal:  -7 is less than zero.
//     IntPtr:    8 is greater than zero.
//    
//     The following type is not CLS-compliant.
//     SByte  : -101 is less than zero.

' This example demonstrates Math.Sign()
Class Sample
   Public Shared Sub Main()
      Dim str As String = "{0}: {1,3} is {2} zero."
      Dim nl As String = Environment.NewLine
      
      Dim xByte1 As Byte = 0
      Dim xShort1 As Short = -2
      Dim xInt1 As Integer = -3
      Dim xLong1 As Long = -4
      Dim xSingle1 As Single = 0F
      Dim xDouble1 As Double = 6.0
      Dim xDecimal1 As [Decimal] = -7D
      
      ' The following type is not CLS-compliant.
      Dim xSbyte1 As SByte = -101
      
      Console.WriteLine("{0}Test the sign of the following types of values:", nl)
      Console.WriteLine(str, "Byte   ", xByte1, Test(Math.Sign(xByte1)))
      Console.WriteLine(str, "Int16  ", xShort1, Test(Math.Sign(xShort1)))
      Console.WriteLine(str, "Int32  ", xInt1, Test(Math.Sign(xInt1)))
      Console.WriteLine(str, "Int64  ", xLong1, Test(Math.Sign(xLong1)))
      Console.WriteLine(str, "Single ", xSingle1, Test(Math.Sign(xSingle1)))
      Console.WriteLine(str, "Double ", xDouble1, Test(Math.Sign(xDouble1)))
      Console.WriteLine(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1)))
      '
      Console.WriteLine("{0}The following type is not CLS-compliant.", nl)
      Console.WriteLine(str, "SByte  ", xSbyte1, Test(Math.Sign(xSbyte1)))
   End Sub
   '
   Public Shared Function Test([compare] As Integer) As [String]
      If [compare] = 0 Then
         Return "equal to"
      ElseIf [compare] < 0 Then
         Return "less than"
      Else
         Return "greater than"
      End If
   End Function 'Test
End Class
'
'This example produces the following results:
'
'Test the sign of the following types of values:
'Byte   :   0 is equal to zero.
'Int16  :  -2 is less than zero.
'Int32  :  -3 is less than zero.
'Int64  :  -4 is less than zero.
'Single :   0 is equal to zero.
'Double :   6 is greater than zero.
'Decimal:  -7 is less than zero.
'
'The following type is not CLS-compliant.
'SByte  : -101 is less than zero.

Se aplica a

Compartir vía

Math.Sign Método

Definición

Sobrecargas

Sign(IntPtr)

Parámetros

Devoluciones

Ejemplos

Se aplica a

Sign(Single)

Parámetros

Devoluciones

Excepciones

Ejemplos

Se aplica a

Sign(SByte)

Parámetros

Devoluciones

Ejemplos

Se aplica a

Sign(Int64)

Parámetros

Devoluciones

Ejemplos

Se aplica a

Sign(Double)

Parámetros

Devoluciones

Excepciones

Ejemplos

Se aplica a

Sign(Int16)

Parámetros

Devoluciones

Ejemplos

Se aplica a

Sign(Decimal)

Parámetros

Devoluciones

Ejemplos

Se aplica a

Sign(Int32)

Parámetros

Devoluciones

Ejemplos

Se aplica a

Recursos adicionales