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Math.Sign Method (Decimal)

Returns a value indicating the sign of a decimal number.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public static int Sign(
	decimal value
)

Parameters

value
Type: System.Decimal

A signed Decimal number.

Return Value

Type: System.Int32
A number indicating the sign of value.

Number

Description

-1

value is less than zero.

0

value is equal to zero.

1

value is greater than zero.

The following example demonstrates how to use the Sign(Decimal) method to determine the sign of a Decimal value and display it to the console.

// 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;

// 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)));
    }
// 
    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.

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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