Re: [Boost-users] [General] Warnings and pragmas in MSVC

On Wed, Jan 14, 2009 at 1:34 PM, Peter Barker wrote:

On Wed, Jan 14, 2009 at 10:50 AM, Robert Jones wrote:

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On Wed, Jan 14, 2009 at 10:39 AM, Peter Barker wrote:

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On Wed, Jan 14, 2009 at 10:28 AM, Robert Jones

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wrote:

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I've written some code using the Lambda & Lambda.bind libraries, although I don't think that really matters, which produce a page ful of C4503 warnings,

4503 'identifier' : decorated name length exceeded, name was truncated

In my code I've tried using pragma disable around the lines which I altered to cause the warnings, but it makes no difference. Is it necessary to apply these pragmas within the Boost library code, or is there a better way?

Thanks, Rob.

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What MSVC version are you using?

Microsoft Visual Studio 2005 Pro Microsoft Visual C++ 2005

Thanks, Rob.

Rob,

You could disable the warning for the entire project by going into Project|Properties, C/C++, Advanced and enter it in the "Disable Specific Warnings" box. I'm using MSVC7 (2003) and had to do that for C4675 (ADL lookup warning).

Bear in mind I don't know the nature of the warning though. Anyone else seen his warning?

Yes, that was the conclusion I came to, and in fact I can use the properties on a per file basis to do this. Strangley it also works if I put #pragma warning( disale : 4503 ) at the top of the .cpp file causing problems, but does not work if I put #pragma warning( push ) #pragma warning( disable : 4503 ) ...my whole .cpp file #pragma warning( pop ) and does not work if I put the same #pragmas around the #include of all my boost headers. It's all a bit bizarre. The warning itself is not a worry - it's just telling me that a name generated through multiple template instantiations is longer than 4096 characters. According to the MS docs this does invalidate the program or generated code, but can be an issue for debugging and symbol tracking. Thanks, Rob.