[Tutor] Magic numbers

[Alan Gauld]

On 05/08/2021 16:11, Dennis Lee Bieber wrote:
> On Thu, 5 Aug 2021 17:48:02 +1000, Phil <phillor9 at gmail.com> declaimed the
> following:
>
>> 128 is bit 7, in this example, of an 8 bit number.
> 	But what is /significant/ about bit-7 (and are you counting bits
> starting from 0, or from 1. It matters for documentation since when
> counting from 0, bit-7 is the /eighth/ bit in the byte).

And this is exactly why bit-shifting is a fault-prone technique only to
be used in extremis!

:-)


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Alan G
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