leading_ones

leading_ones(x::Integer) -> Integer

Number of ones leading the binary representation of x.

julia> leading_ones(UInt32(2 ^ 32 - 2))
31

Examples

The leading_ones function in Julia returns the number of ones leading the binary representation of an Integer value.

julia> leading_ones(UInt32(2 ^ 32 - 2))
31

Here are some examples of how to use the leading_ones function:

Count leading ones in a binary number:
```
julia> leading_ones(UInt8(0b11110000))
4
```
This example counts the number of leading ones in the binary representation of the UInt8 value 0b11110000.
Determine the number of leading ones in a larger integer:
```
julia> leading_ones(UInt64(0b11111111111111110000000000000000))
16
```
Here, leading_ones counts the number of ones at the beginning of the binary representation of the UInt64 value 0b11111111111111110000000000000000.
Count leading ones in a negative number:
```
julia> leading_ones(Int16(-0b1111000000000000))
4
```
In this example, leading_ones counts the number of leading ones in the binary representation of the negative Int16 value -0b1111000000000000.

Please note that leading_ones works with any Integer type and returns an Integer value representing the count of leading ones.

If the input x is zero, the function will return 0 since there are no leading ones in the binary representation.

julia> leading_ones(UInt8(0))
0

No common mistakes are associated with using the leading_ones function.

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