RE: Bitwise ops in RPG (was: Re: Determining *DS4 support)

Hi Hans -

>This begs the question:  What syntax would you prefer for bitwise
>operations?
>
>a) infix operators:
>      x ANDB y
>      x ORB y
>      x XORB y
>      NOTB y
 ...
>b) built-in functions:
>      %BITAND(x:y)
>      %BITOR(x:y)
>      %BITXOR(x:y)
>      %BITNOT(x)

Let me cast another vote for the BIFs.  They are much easier to recognize at
a glance.

The infix operators I think would be improved by having the 'B' at the
beginning rather than the end ... BAND, BOR, BXOR, BNOT.

But I still vote for the BIFs.  With BIFs you could allow more than just two
operands where appropriate, e.g. %BITAND(x:y:z:w:x'0F') which would give me
a result with the upper four bits off and in the lower four bits, only those
bits on which are on in all of variables, X, Y, Z, and W.

Ken
Southern Wine and Spirits of Nevada, Inc.
Opinions expressed are my own and do not necessarily represent the views of
my employer or anyone in their right mind.

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