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BitTest'ing numbers larger then 32 bits
Message
De
01/01/2021 09:55:25
Dragan Nedeljkovich (En ligne)
Now officially retired
Zrenjanin, Serbia
 
 
À
01/01/2021 08:42:12
Lutz Scheffler
Lutz Scheffler Software Ingenieurbüro
Dresden, Allemagne
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
01677684
Message ID:
01677691
Vues:
63
>>>Happy New Year all,
>>>
>>>I have run into a wall. I have a argument that is a set of bit flags. Currently, I have hit the 32 bit integer limit using the VFP bit functions of 32 bit. Now I am looking for a means to extend this to more flags (bits) without having to do a large rewrite in my system. The question is, is there a known UDF function that mimics the BITTEST (and possible other bit-wise functions) that can deal with numbers larger then 32 bits?
>>
>>The only thing that comes to mind is to somehow keep this larger integer as a binary string, and then bittest the asc() of the relevant byte in it.
>
>The question was for an existing lib doing this. ;)

Since I don't know of such a beast - and then, also, how would anything from VFP be passed to it as a proper above-32-bit integer - I went straight for plan B.

back to same old

the first online autobiography, unfinished by design
What, me reckless? I'm full of recks!
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