Math.Sign Method (Int64)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns a value indicating the sign of a 64-bit signed integer.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Int64
A signed number.
Return Value
Type: System.Int32A 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 method to determine the sign of a Int64 value and print it to the console.
' This example demonstrates Math.Sign() Class Example Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock) 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 = 0.0F Dim xDouble1 As Double = 6.0 Dim xDecimal1 As [Decimal] = -7D ' The following type is not CLS-compliant. Dim xSbyte1 As SByte = -101 outputBlock.Text += String.Format("{0}Test the sign of the following types of values:", nl) & vbCrLf outputBlock.Text += String.Format(str, "Byte ", xByte1, Test(Math.Sign(xByte1))) & vbCrLf outputBlock.Text += String.Format(str, "Int16 ", xShort1, Test(Math.Sign(xShort1))) & vbCrLf outputBlock.Text += String.Format(str, "Int32 ", xInt1, Test(Math.Sign(xInt1))) & vbCrLf outputBlock.Text += String.Format(str, "Int64 ", xLong1, Test(Math.Sign(xLong1))) & vbCrLf outputBlock.Text += String.Format(str, "Single ", xSingle1, Test(Math.Sign(xSingle1))) & vbCrLf outputBlock.Text += String.Format(str, "Double ", xDouble1, Test(Math.Sign(xDouble1))) & vbCrLf outputBlock.Text += String.Format(str, "Decimal", xDecimal1, Test(Math.Sign(xDecimal1))) & vbCrLf ' outputBlock.Text += String.Format("{0}The following type is not CLS-compliant.", nl) & vbCrLf outputBlock.Text += String.Format(str, "SByte ", xSbyte1, Test(Math.Sign(xSbyte1))) & vbCrLf End Sub 'Main ' Public Shared Function Test(ByVal [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 'Sample ' '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.
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