Re: question(s) about declaring variables


"Michael C" <mculley@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:%2374euN2eFHA.2244@xxxxxxxxxxxxxxxxxxxxxxx
> "spacewarp" <sureshsitaula@xxxxxxxxx> wrote in message
> news:1119851711.614989.110510@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> One question, Michael : Are 1000& and CLng(1000) exactly the same?
>>
>> I mean, doesn't the latter come at a slight performance loss of calling
>> a function and the associated conversion of an integer to a long value?
>> Or is CLng(1000) directly evaluated as 1000& during compilation?
>
> They compile to the exact same assembly code so no performance hit at all.

I have to question that. Any performance hit would indeed be minimal (if
existant, or at least measureable, at all), but I don't think they'd compile
exactly the same. It's two different things. One is type-casting a literal
value to a specific data type and this occurs at compile time. Another is
*converting* a literal value from one data type to a different data type and
this occurs at runtime (and subsequently happens every time the code is
executed).

I really think you're mistaken. I don't see how they can compile
identically.

--
Mike
Microsoft MVP Visual Basic


.

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