Re: [oopic] Re: left/right bit shifting

At 09:13 PM 8/5/2008, scottmsavage wrote:
>--- In oopic@yahoogroups.com, Andrew Porrett <slicerwizard@...> wrote:
> > The V5 compiler has never supported some basic operators like
> > left/right bit shifting. I don't recall if this has been fixed in V6.
> > ... Andy
>
>The left/right bit shifting is a method of the value itself.
>
>a.RShift

More doublespeak. Lshift and Rshift are nothing more than unsigned
multiply and divide by 2. True shift operators are binary operators
- they have two operands, namely the value to be shifted and the
number of bits to shift.

To build an appropriate bitmask for a given task, I have to shift a
value of 1 left by <n> bits, like so:

mask = 1 << n;

But the OOPic doesn't support this from what I've seen. Instead, I
have to set up a slow loop in script code:

mask = 1;

for (i = 0; i < n; ++i)
mask = mask * 2;

And I can't even use the ++i unless I use my preprocessor (or has
that been fixed in V6?)

...Andy

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