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Bitlshift(0xff, 24) doesn't work for me!
Message
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 6 SP5
OS:
Windows XP SP2
Database:
Visual FoxPro
Miscellaneous
Thread ID:
00954994
Message ID:
00955067
Views:
25
Thanks Tailor,

It worked. You are the math master of the UT.

Cheers,
Ali

>Works in VFP7 and above, but VFP6 does yield "********".
>
>For VFP6, you'll need to do something like this:
>
?transform(bitlshift(0xff,23)*2,"@0")
>
>
>>Maybe I am wrong but after I ran the following code:
>>
? TRANSFORM(-16777216,"@0")
>>I got:
>>**********
>>not 0xFF000000
>>
>>Do you have any thoughts on that?
>>
>>Thanks,
>>Ali
>>
>>>Sure it did. You're asking for 0xff to be shifted left 24 bits. If you look at the result (0xff000000) that is exactly what you got with the value of -16777216.
>>>
>>>
>>>
>>>>Hi Taylor,
>>>>
>>>>Thanks for the reply, but it did not work?
>>>>
>>>>
>>>>>>Hi Everybody,
>>>>>>
>>>>>>I would like to shift a number between 0-255 to the left 24 times. When I do the following for example:
>>>>>>
>>>>>>
? bitlshift(0xff, 24)
>>>>>>
>>>>>>I should get: 4278190080
>>>>>>
>>>>>>However, I get the following number instead:
>>>>>>-16777216
>>>>>>
>>>>>>How can I correct it?
>>>>>>
>>>>>>Thank you,
>>>>>>Ali
>>>>>
>>>>>That is the correct answer. VFP uses signed numbers.
>>>>>
>>>>>? TRANSFORM(-16777216,"@0") && 0xff000000
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