Re: [boost] [msvc] #warning preprocessor directive

Subject: Re: [boost] [msvc] #warning preprocessor directive
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2017-10-17 12:27:26

On 10/17/17 15:10, Beman Dawes via Boost wrote:
> I find it very irritating that VC++ does not support #warning, and have
> opened a feature request:
> 
> https://visualstudio.uservoice.com/forums/121579-visual-studio?query=Add%20C%2FC%2B%2B%20%23warning%20preprocessor%20directive
> 
> The last time #warning was suggested it was rejected because not enough
> people voted for it. So please consider upvoting it on the above link.
> 
> The lack of #warning affects Boost libraries in that developers avoid
> otherwise useful warnings because of the hassle for using an extension not
> supported by VC++.

#warning would be a non-standard preprocessor directive. I don't think 
such a non-standard extension is justified given that other compilers 
don't support it and that there is a more portable alternative "#pragma 
message".