fxshift(fx, i)
fxshift_left(fx, i)
fxshift_right(fx, i)
fxshift_wrap(fx, i)
fxshift_left_wrap(fx, i)
fxshift_right_wrap(fx, i)
fxlshift_right_wrap(fx, i)
Return the fixnum fx arithmetically or logically shifted left or right
by i positions.
For all functions except fxshift and fxshift_wrap, i must be a non-negative integer.
If i is non-negative, it must be less than the value of fixnum_width().
If i is negative, fxshift will return the result of arithmetically shifting fx right by i bits.
Otherwise, fxshift will return the result of shifting fx left by i bits.
Fxlshift_right_wrap logically right-shifts fx by i bits.
number_to_string(fxior(4294967296, fxshift(1, 2)), 2)
// 100000000000000000000000000000100
number_to_string(fxior(4294967296, fxshift(fxshift(1, 2), -3)), 2)
// 100000000000000000000000000000000