Abs Method (Int64)
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Math.Abs Method (Int64)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Returns the absolute value of a 64-bit signed integer.

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

public static long Abs(
	long value
)

Parameters

value
Type: System.Int64
A number that is greater than Int64.MinValue, but less than or equal to Int64.MaxValue.

Return Value

Type: System.Int64
A 64-bit signed integer, x, such that 0 x Int64.MaxValue.

ExceptionCondition
OverflowException

value equals Int64.MinValue.

The absolute value of an Int64 is its numeric value without its sign. For example, the absolute value of both 123 and -123 is 123.

The following example uses the Math.Abs(Int64) method to get the absolute value of several Int64 values.


long[] values = { Int64.MaxValue, 109013, 0, -6871982, Int64.MinValue };
foreach (long value in values)
{
   try
   {
      outputBlock.Text += String.Format("Abs({0}) = {1}", value, Math.Abs(value)) + "\n";
   }
   catch (OverflowException)
   {
      outputBlock.Text += String.Format("Unable to calculate the absolute value of {0}.",
                        value) + "\n";
   }
}
// The example displays the following output:
//       Abs(9223372036854775807) = 9223372036854775807
//       Abs(109013) = 109013
//       Abs(0) = 0
//       Abs(-6871982) = 6871982
//       Unable to calculate the absolute value of -9223372036854775808.


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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