BitOperations.Log2 Method

Definition

Namespace:

System.Numerics

Assembly:

System.Runtime.dll

Overloads

Log2(UIntPtr)	Returns the integer (floor) log of the specified value, base 2.
Log2(UInt32)	Returns the integer (floor) log of the specified value, base 2.
Log2(UInt64)	Returns the integer (floor) log of the specified value, base 2.

Log2(UIntPtr)

Source:

BitOperations.cs

Important

This API is not CLS-compliant.

Returns the integer (floor) log of the specified value, base 2.

public:
 static int Log2(UIntPtr value);

[System.CLSCompliant(false)]
public static int Log2 (UIntPtr value);

[<System.CLSCompliant(false)>]
static member Log2 : unativeint -> int

Public Shared Function Log2 (value As UIntPtr) As Integer

Parameters

value

UIntPtr

unativeint

The value.

Returns

Int32

The logarithm value.

Attributes

CLSCompliantAttribute

Remarks

By convention, input value 0 returns 0 since log(0) is undefined.

Log2(UInt32)

Source:

BitOperations.cs

Important

This API is not CLS-compliant.

Returns the integer (floor) log of the specified value, base 2.

public:
 static int Log2(System::UInt32 value);

[System.CLSCompliant(false)]
public static int Log2 (uint value);

[<System.CLSCompliant(false)>]
static member Log2 : uint32 -> int

Public Shared Function Log2 (value As UInteger) As Integer

Parameters

value

UInt32

The number from which to obtain the logarithm.

Returns

Int32

The log of the specified value, base 2.

Attributes

CLSCompliantAttribute

Remarks

Note that by convention, input value 0 returns 0 since Log(0) is undefined.

Log2(UInt64)

Source:

BitOperations.cs

Important

This API is not CLS-compliant.

Returns the integer (floor) log of the specified value, base 2.

public:
 static int Log2(System::UInt64 value);

[System.CLSCompliant(false)]
public static int Log2 (ulong value);

[<System.CLSCompliant(false)>]
static member Log2 : uint64 -> int

Public Shared Function Log2 (value As ULong) As Integer

Parameters

value

UInt64

The number from which to obtain the logarithm.

Returns

Int32

The log of the specified value, base 2.

Attributes

CLSCompliantAttribute

Remarks

Note that by convention, input value 0 returns 0 since Log(0) is undefined.