From: "phil song" <philsong@techtrex.com>
To: Manish Katiyar <mkatiyar@gmail.com>,
Randi Botse <nightdecoder@gmail.com>
Cc: linux-c-programming <linux-c-programming@vger.kernel.org>
Subject: Re: Re: function cast?
Date: Mon, 1 Feb 2010 12:33:07 +0800 [thread overview]
Message-ID: <201002011233052965296@techtrex.com> (raw)
In-Reply-To: ea11fea31001272220w6e8aa529y7c9eb39bb6294729@mail.gmail.com
HI,Manish Katiyar!
thanks,I see too now.
======= 2010-01-28 14:24:58 The letter which you writted before:=======
>On Thu, Jan 28, 2010 at 11:39 AM, Randi Botse <nightdecoder@gmail.com> wrote:
>> (sorry for my first uncomplete email, please abandon the first mail)
>>
>> Hi All,
>>
>> Sometimes i see codes are written like this:
>>
>> (void) printf(fmt);
>>
>> - or -
>>
>> (void) close(fd);
>>
>> What these means? i think it is not necessary to put that 'void' on a
>> statement, or it just like when we cast a data type like:
>>
>> double d = 93.43;
>> int i = (int) d;
>>
>> but why those function need to be casted in a 'void' ?
>
>Some time it is also to shut up static analysis tools, which might
>crib if the function is supposed to return a value and you have not
>used the return value. It might be intentional or you might have just
>missed. So inorder to show that it is intetional not to use the return
>value we typecast it.
>
>Thanks -
>Manish
>
>>
>> Thanks,
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in
>> the body of a message to majordomo@vger.kernel.org
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>>
>
>
>
>--
>Thanks -
>Manish
>==================================
>[$\*.^ -- I miss being one of them
>==================================
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= = = = = = = = = = = = = = = = = = = =
Sincerely
phil song
philsong@techtrex.com
2010-02-01
prev parent reply other threads:[~2010-02-01 4:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-28 6:05 function cast? Randi Botse
2010-01-28 6:09 ` Randi Botse
2010-01-28 6:20 ` Manish Katiyar
2010-02-01 4:33 ` phil song [this message]
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