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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: What are these functions (warning, push, disable) are in the macro definition?
Date: Wed, 05 Apr 2017 13:46:01 -0700
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fl <rxjwg98@gmail.com> writes:
> I have a MSVC project which has the following definitions. It builds 
> successfully on MSVC, but I don't understand what warning, push, pop 
> and disable are.
[...]
>
> .........................
> #if DSAS_MSVC
> #define DSAS_MULTILINE_MACRO_END \
>   __pragma( warning( push ) ) \
>   __pragma( warning( disable:4127 ) ) \
>   } \
>   while( 0 ) \
>   __pragma( warning( pop ) )
> #else /* #if DSAS_MSVC  */
> #define DSAS_MULTILINE_MACRO_END \
>   } \
>   while ( 0 )
> #endif 

This is a non-standard feature of MSVC, documented here:

https://msdn.microsoft.com/en-us/library/2c8f766e.aspx

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"