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#DEFINE - Why?
Message
De
01/04/2008 03:47:19
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Titre:
Versions des environnements
Visual FoxPro:
VFP 9 SP2
Divers
Thread ID:
01306848
Message ID:
01307249
Vues:
5
>>I wonder how much memory we are talking about though? 100k? We are only talking about values like "LOOK_AT_THIS_COOL_DEFINE" and stuff like that. Maybe it comes down to how memory is assigned and it does save a bunch, but I'm thinking it's not really that much.
>>
>Hard to say. Try this test:
>
>#define CRLF chr(13)+chr(10)
>
>local lcStr
>
>for i=1 to 100000
>  lcStr = CRLF
>next
>
>vs.
>
>local lcCRLF, lcStr
>
>lcCRLF = chr(13) + chr(10)
>for i=1 to 100000
>  lcStr = lcCRLF
>next
>
Why would the second example use significantly more memory? You're only creating one variable (albeit 100000 times). More cycles, yes ; more memory? no. Of course a smart compiler would probably only execute the 'lcStr=lcCRLF' once anyway :-}

Regards,
Viv
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