Disable Compiler Waring

Ashutosh Bhawasinka

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May 27, 2008, 1:10:08 AM5/27/08

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Hi,
I want to disable compiler warning C4482 (nonstandard extension used:
enum 'enum' used in qualified name)

I can disable the warning using this,

#pragma warning(push)
#pragma warning(disable : 4482)

//My code here

#pragma warning(pop)

But this is just for a single file. How can I disable this error at the
project level?? I guess there are some compiler switch for it.

Secondly, will this have any effect on the project?

Regards,
Ashutosh

Carl Daniel [VC++ MVP]

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May 27, 2008, 2:05:51 AM5/27/08

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Ashutosh Bhawasinka wrote:
> Hi,
> I want to disable compiler warning C4482 (nonstandard extension used:
> enum 'enum' used in qualified name)
>
> I can disable the warning using this,
>
> #pragma warning(push)
> #pragma warning(disable : 4482)
>
> //My code here
>
> #pragma warning(pop)
>
>
> But this is just for a single file. How can I disable this error at
> the project level?? I guess there are some compiler switch for it.

/wd4482 on the compiler command line will disable that warning. Try typing
cl /? at a "visual studio" command prompt to see all the compiler command
line options.

> Secondly, will this have any effect on the project?

Other than suppressing the warning, no.

-cd

Jialiang Ge [MSFT]

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May 27, 2008, 2:10:23 AM5/27/08

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Hello Ashutosh,

Suppose that you are using Visual Studio 2005 to build the VC project. In
order to disable some warning message in the project level, the steps are
as follows:

1. Right click on the project in Solution Explorer, and select "Property"
2. Go to "Configuration Properties" | "C/C++" | "Advanced" | "Disable
Specific Warnings"
3. In the "Disable Specific Warnings" dialog, input the warning ID. The ID
is just numeric part, in our case, it's 4482.
4. Click OK, and re-compile the project.

The setting is saved in your vcproj file:

This setting won't have any effect but removing 4822 from warning lists
from the project.

Please have a try and let me know whether this works for you.

Regards,
Jialiang Ge (jia...@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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Ulrich Eckhardt

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May 27, 2008, 2:56:50 AM5/27/08

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Ashutosh Bhawasinka wrote:
> I want to disable compiler warning C4482 (nonstandard extension used:
> enum 'enum' used in qualified name)

Fix the code:

enum foo { bar };
// wrong
foo f = foo::bar;
// correct
foo f = bar;

Enumeration constants 'leak' into the surrounding namespace. If you don't
want that, enclose the enumeration itself in a namespace:

namespace foo {
enum type { bar };
}
foo::type f = foo::bar;

> Secondly, will this have any effect on the project?

Disabling or ignoring warning doesn't directly affect the outcome, but in
general warnings are a sign of low code quality. Your code above is simply
not portable to other compilers that don't support this extension.

Fix it, it's broken.

Uli

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Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932

Ashutosh Bhawasinka

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May 27, 2008, 3:21:17 AM5/27/08

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Thanks everyone!

Ashutosh

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May 27, 2008, 6:55:27 AM5/27/08

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HI Ulrich,
I don't have to worry about compiling my code in other compiler. But I
like your idea of putting/enclosing the enum declaration in a namespace.

Thanks & Regards,
Ashutosh