Gemstone Common Library
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# BitMathCountLeadingOnes(UInt64) Method

Counts the number of consecutive 1's starting from the highest bit working down.

## Definition

Namespace: Gemstone
Assembly: Gemstone.Common (in Gemstone.Common.dll) Version: 1.0.150 -- Release Build+64e3b411e1abfbd2d4d8a81e850c3909a0ce8731
C#
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    public static int CountLeadingOnes(
    	ulong value
    )

VB
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    Public Shared Function CountLeadingOnes (
    	value As ULong
    ) As Integer

C++
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    public:
    static int CountLeadingOnes(
    	unsigned long long value
    )

JavaScript
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    Gemstone.BitMath.CountLeadingOnes = function(value);

#### Parameters

value UInt64
  Target value for bit counting.

#### Return Value

Int32
Number of consecutive 1's starting from the highest bit working down.

## See Also

#### Reference

BitMath Class
CountLeadingOnes Overload
Gemstone Namespace