shiftr(x, shift): Shift Right¶

Logical shift right function.

Declaration¶

Syntax¶

retval = shiftr(int(number), 31);
integer(int32) function shiftri32(i, shift)

Arguments¶

x is an integer input value.

shift an unsigned integer value less than or equal to the bit size of x. The possible values are 7, 31, and 63.

Return values¶

The return value is of type integer and of the same kind as x.

Описание¶

shiftr(x, shift) logically right shifts x by shift number of bits. shiftr shifts from MSB(Most Significant Bit) to LSB(Least Significant Bit). Bits shifted from the right end i.e., LSB bits are lost. Zeroes are appended to the opposite left end.

Types¶

Supported types in unsigned integer value x and unsigned integer value shift from (7, 31, 63) less than or equal to bit size of x.

interface shiftr
    module procedure shiftri8, shiftri32, shiftri64
end interface

contains

interface
    integer(int8) function shiftri8(i, shift) result(r)
	integer(int8), intent(in) :: i
	integer :: shift
	end function

	integer(int32) function shiftri32(i, shift) result(r)
	integer(int32) :: i
	integer :: shift
	end function

	integer(int64) function shiftri64(i, shift) result(r)
	integer(int64) :: i
	integer :: shift
	end function
end interface

Examples¶

program intrinsics_shiftr
    implicit none
    integer, parameter :: x = kind(4)
    integer :: retval
    retval = shiftr(int(x), 7)
    print *, retval
end program

Result: