id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5867	The warning stack is not maintained	Tsukasa Kusakabe <kusakabe@…>	Joel de Guzman	" === Problem ===
When ""#include"" is executed for the following file, the warning stack is destroyed.
The cause is to have forgotten to write ""#pragma warning(pop)"".

File list
 * boost/spirit/home/classic/core/composite/composite.hpp
 * boost/spirit/home/classic/core/composite/actions.hpp

 === Impact ===
When the VisualStudio user uses a specific header, a part of a necessary warning is not displayed.

 === Reproduction code ===
{{{
#!cpp

#include <boost/config.hpp>
#pragma warning(error: 4193)

//boost/spirit/home/classic/core/composite/composite.hpp
#pragma warning(pop) // => warning C4193
#include <boost/spirit/home/classic/core/composite/composite.hpp>
#pragma warning(pop) // !!! There is not warning. !!!

//boost/spirit/home/classic/core/composite/actions.hpp
#pragma warning(pop) // => warning C4193
#include <boost/spirit/home/classic/core/composite/actions.hpp>
#pragma warning(pop) // !!! There is not warning. !!!

int main() {
  return 0;
}
}}}

 === Patch ===
{{{
#!diff

Index: boost/spirit/home/classic/core/composite/actions.hpp
===================================================================
--- boost/spirit/home/classic/core/composite/actions.hpp	(revision 74236)
+++ boost/spirit/home/classic/core/composite/actions.hpp	(working copy)
@@ -125,6 +125,10 @@
         ActionT actor;
     };
 
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+
 BOOST_SPIRIT_CLASSIC_NAMESPACE_END
 
 }} // namespace BOOST_SPIRIT_CLASSIC_NS
Index: boost/spirit/home/classic/core/composite/composite.hpp
===================================================================
--- boost/spirit/home/classic/core/composite/composite.hpp	(revision 74236)
+++ boost/spirit/home/classic/core/composite/composite.hpp	(working copy)
@@ -140,6 +140,10 @@
         boost::compressed_pair<left_embed_t, right_embed_t> subj;
     };
 
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+
 BOOST_SPIRIT_CLASSIC_NAMESPACE_END
 
 }} // namespace BOOST_SPIRIT_CLASSIC_NS
}}}

 === Environment ===
 * OS: Windows 7 Professional SP1
 * Compiler:
{{{
Microsoft Visual Studio 2010
Version 10.0.30319.1 RTMRel
Microsoft .NET Framework
Version 4.0.30319 RTMRel
}}}

 === Comments ===
Division origin #5577
"	Bugs	closed	To Be Determined	spirit	Boost 1.48.0	Problem	fixed