Class Int64Extensions

Numeric-related extension methods for .

Inheritance
System.Object
Int64Extensions
Namespace: X10D.Numerics
Assembly: X10D.dll
Syntax
public static class Int64Extensions : object

Methods

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PopCount(Int64)

Returns the population count (number of bits set) of a mask.

Declaration
public static int PopCount(this long value)
Parameters
Type Name Description
System.Int64 value

The mask.
Returns
Type Description
System.Int32

The population count of value.
Remarks

This method is similar in behavior to the x86 instruction POPCNT

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RotateLeft(Int64, Int32)

Rotates the current value left by the specified number of bits.

Declaration
public static long RotateLeft(this long value, int count)
Parameters
Type Name Description
System.Int64 value

The value to rotate.
System.Int32 count

The number of bits by which to rotate. Any value outside the range [0..63] is treated as congruent mod 64.
Returns
Type Description
System.Int64

The rotated value.
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RotateRight(Int64, Int32)

Rotates the current value right by the specified number of bits.

Declaration
public static long RotateRight(this long value, int count)
Parameters
Type Name Description
System.Int64 value

The value to rotate.
System.Int32 count

The number of bits by which to rotate. Any value outside the range [0..63] is treated as congruent mod 64.
Returns
Type Description
System.Int64

The rotated value.
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RoundUpToPowerOf2(Int64)

Rounds the current value up to a power of two.

Declaration
public static long RoundUpToPowerOf2(this long value)
Parameters
Type Name Description
System.Int64 value

The value to round.
Returns
Type Description
System.Int64

The smallest power of two that's greater than or equal to value, or 0 if value is 0 or the result overflows.