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From: JY on 22 Apr 2010 10:28
Hi,

I'm trying to #define a parameter like,

#define MY_CONFIG_PARAM 0

in a header file, and then trying to check its value later (in the same
header)

#if $(MY_CONFIG_PARAM) != 0
#define SOMETHING_ELSE
#endif

and I need to do something similar in make files.

In the Visual Studio environment (VS 2005 SP1) it gives me errors when I add
this to the header file. What would be the correct definitions?

TIA,
JY
From: Igor Tandetnik on 22 Apr 2010 12:54
JY <sd(a)nospamgroup.com> wrote:
> I'm trying to #define a parameter like,
>
> #define MY_CONFIG_PARAM 0
>
> in a header file, and then trying to check its value later (in the
> same header)
>
> #if $(MY_CONFIG_PARAM) != 0
> #define SOMETHING_ELSE
> #endif

#if MY_CONFIG_PARAM != 0

--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

From: Pavel A. on 23 Apr 2010 11:31
In makefile, this woud be

!if $(MY_CONFIG_PARAM) != 0
SOMETHING_ELSE=1
!endif

and # char is a comment.
--pa


"Igor Tandetnik" <itandetnik(a)mvps.org> wrote in message
news:#kIpJyj4KHA.3712(a)TK2MSFTNGP04.phx.gbl...
> JY <sd(a)nospamgroup.com> wrote:
>> I'm trying to #define a parameter like,
>>
>> #define MY_CONFIG_PARAM 0
>>
>> in a header file, and then trying to check its value later (in the
>> same header)
>>
>> #if $(MY_CONFIG_PARAM) != 0
>> #define SOMETHING_ELSE
>> #endif
>
> #if MY_CONFIG_PARAM != 0
>
> --
> With best wishes,
> Igor Tandetnik
>
> With sufficient thrust, pigs fly just fine. However, this is not
> necessarily a good idea. It is hard to be sure where they are going to
> land, and it could be dangerous sitting under them as they fly
> overhead. -- RFC 1925
>
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