bit_size(x): Bit Size¶

Bit size.

Declaration¶

Syntax¶

retval = bit_size(x);
elemental logical function bit_size(x)

Arguments¶

x is integer input value.

Return values¶

The return value is of type integer.

Description¶

bit_size(x) calculates the number of bits including sign bit of binary representation of x.

Types¶

Supported input types is integer.

module lfortran_intrinsic_builtin
implicit none

contains

interface
    integer function bit_size(x)
	integer, intent(in) :: x
	end function
end interface

Examples¶

program intrinsics_bit_size
    implicit none
    print *, bit_size(123)
	print *, bit_size(-1)
end program

Result:

32
32