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RAND() not very random
Message
From
21/09/2006 11:45:26
Dragan Nedeljkovich (Online)
Now officially retired
Zrenjanin, Serbia
 
 
To
21/09/2006 06:09:41
General information
Forum:
Visual FoxPro
Category:
Other
Environment versions
Visual FoxPro:
VFP 7 SP1
OS:
Windows XP SP2
Miscellaneous
Thread ID:
01155607
Message ID:
01156037
Views:
34
>>>>How so, amd why not suggest an alternative? It's just a cheap & cheerful way of generating a (fairly) unigue file name.
>>>
>>>
>>>lcDateStr = ttoc(datetime(), 1)
>>>
>>
>>Thanks Gregory. Then it needs converting to a format readable to a British eye/brain, with "_" separators, etc. It's not that important :-)
>>
>>Terry
>
>Terry,
>
>That's easy
>
>?transform(ttoc(datetime(),1), '@R ####_##_##_##:##:##')
>?transform(ttoc(datetime(),1), '@R ####-##-##_##:##:##')
>
For cases where I just need a sufficiently unique name (which doesn't have to mean anything), I use this function:
Procedure n2s
Lparameters tNR
Local nMod, numdat, sl, trnn2s
trnn2s = "ABCDEFGHIJK123456789LMNOP0QRSTUVWXYZ"
nMod=Len(trnn2s)
numdat=tNR
sl=""
Do While numdat>0
	ns=numdat%nMod
	sl=Substr(trnn2s,ns+1,1)+sl
	numdat=Int(numdat/nMod)
Enddo
Retu sl
Endproc
There's actually a version with fixed length of the resulting string, and trnn2s is a property of the class, and the string itself is not as it looks here, but that's the general idea.

Then my filename is
lcFile=forceext(lcFile+"_"+n2s(int(seconds())), "ext")

back to same old

the first online autobiography, unfinished by design
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