Counting leading ones and zeros in binary representation of a number in Julia – leading_ones() and leading_zeros() Methods

The leading_ones() is an inbuilt function in julia which is used to find the number of ones leading the binary representation of the specified number.

Syntax: leading_ones(x::Integer)

Parameters:

• x::Integer: Specified integer number.

Returns: It returns the number of ones leading the binary representation of the specified number.

Example:

# Julia program to illustrate
# the use of leading_ones() method

# Getting the number of ones leading
# the binary representation of
# the specified number.
println(leading_ones(UInt16(2 ^ 16 - 1)))
println(leading_ones(UInt16(2 ^ 16 - 2)))
println(leading_ones(UInt32(2 ^ 32 - 1)))
println(leading_ones(UInt32(2 ^ 32 - 2)))

Output:

16
15
32
31

leading_zeros()

The leading_zeros() is an inbuilt function in julia which is used to find the number of zeros leading the binary representation of the specified number.

Syntax: leading_zeros(x::Integer)

Parameters:

• x::Integer: Specified integer number.

Returns: It returns the number of zeros leading the binary representation of the specified number.

Example:

# Julia program to illustrate
# the use of leading_zeros() method

# Getting the number of zeros leading
# the binary representation of
# the specified number.
println(leading_zeros(Int16(5)))
println(leading_zeros(Int16(15)))
println(leading_zeros(Int32(30)))
println(leading_zeros(Int32(36)))

Output:

13
12
27
26