Abs Method (Int64)

# Math.Abs Method (Int64)

.NET Framework 4.6 and 4.5

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

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

## Syntax

```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.

## Exceptions

Exception Condition
OverflowException

value equals Int64.MinValue.

## Remarks

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.

## Examples

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

```using System;

public class Example
{
public static void Main()
{
long[] values = { Int64.MaxValue, 109013, 0, -6871982, Int64.MinValue };
foreach (long value in values)
{
try {
Console.WriteLine("Abs({0}) = {1}", value, Math.Abs(value));
}
catch (OverflowException) {
Console.WriteLine("Unable to calculate the absolute value of {0}.",
value);
}
}
}
}
// 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.
```

## Version Information

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1