Re: warning in code while building on windows

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: warning in code while building on windows
Date: 2013-08-18 21:30:29
Message-ID: 52113CF5.2030201@dunslane.net
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On 08/18/2013 05:08 PM, Alvaro Herrera wrote:
> Amit Kapila escribió:
>> 1>.\src\backend\utils\cache\relfilenodemap.c(213) : warning C4101:
>> 'isnull' : unreferenced local variable
>>
>> It seems this variable is used only under macro USE_ASSERT_CHECKING,
>> so it is better to declare under this macro only.
> We have a macro for this, PG_USED_FOR_ASSERTS_ONLY. This should silence
> it; if the msvc stuff is not picking it up then maybe we need to tweak
> the definition of the macro somehow.
>

The macro is pretty gcc-specific, isn't it?

For MSVC we would probably need to surround the declaration with
something like these lines.

#pragma warning(disable:4101)
#pragma warning(default:4101)

cheers

andrew

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