- BYTE arithmetic

From: [at]} <Wojtek>
Date: Wed, 21 Jun 2006 11:59:13 -0400 (EDT)

----boundary-LibPST-iamunique-1267998018_-_-
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Robert:

  the compiler conforms to the Language report. See the attached document.
I must admit it is surprising. My comment: in this particular spot the
32-bitness is implied in the language through the back door. It is not
obvious that this should be the case, but in fact it is the case. The type
INTEGER is singled out because it is the "generic type" for integer
operations. Remember that LONGINT is implemented on the FPU in the i386
architecture, so LONGINT is (probably) less efficient than INTEGER.

W

On Wed, 21 Jun 2006, Campbell, Robert D (SELEX) (UK Edinburgh) wrote:

>
> Hi,
>
> I was surprised to find that the
> Following code does not compile:
>
> VAR
> b : BYTE;
> BEGIN
> b := -b
>
>
> Same thing with SHORTINTs.
>
> Is this what the Language Report requires?
>
> Robert
>
> (PS - I have not tried this on the Gardens Point
> Compiler!)

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Received on Wed Jun 21 2006 - 17:59:13 UTC

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