Re: Win32: Minimising desktop heap usage

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От Tom Lane
Тема Re: Win32: Minimising desktop heap usage
Дата
Msg-id 19055.1193154856@sss.pgh.pa.us
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Ответ на Re: Win32: Minimising desktop heap usage  (Dave Page <dpage@postgresql.org>)
Ответы Re: Win32: Minimising desktop heap usage  (Dave Page <dpage@postgresql.org>)
Re: Win32: Minimising desktop heap usage  (Magnus Hagander <magnus@hagander.net>)
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Dave Page <dpage@postgresql.org> writes:
> Tom Lane wrote:
>> So don't initialize a local variable unless
>> you're giving it an actually meaningful value.

> The downside is that we see a useless warning that, if sufficiently
> multiplied, might make it hard to see something we are interested in.

[ looks again... ]  Actually, I think you just proved my point for me.
The ZeroMemory call should go away, no?  (Does this mean that the
Windows builds fail to detect dereferencing NULL?  Bad if so.)

>> Hmm, is there any functional downside to this?  I suppose
>> SHGetSpecialFolderPath does some things that getenv does not...

> A good percentage of the special folder paths you might query with
> SHGetSpecialFolderPath() are not actually in the environment. APPDATA
> certainly is on XP, 2K3 and Vista though, and I've found MS KB articles
> referring to it being on 2K as well.

OK, in that case seems no problem.

            regards, tom lane

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