2014-03-25 18:20 GMT+02:00 Paul Baker<paulbaker8@gmail.com>:
Regarding the new bitwise operators, the Reference Manual states "Both
right and left shifts fill with zeros the vacant bits". Given that
"Lua 5.3 has integers but not unsigned integers" [1], it seems strange
that the>> operator is unsigned rather than signed. Is there a reason
for this? Personally, I think it would be useful for Lua to support
both types of right shift - perhaps using the same syntax as
JavaScript:>> and>>> ?
Don't agree.
I can see the point of arithmetic shift in C, where it could be useful
when programming multiprecision arithmetic — but C does not have
it. Its inclusion in the bit32 library always felt to me like a loving
preservation of a quirk of some early computer (IBM 360 springs to
mind).
