id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5868	The warning stack is not maintained	Tsukasa Kusakabe <kusakabe@…>	Robert Ramey	" === Problem ===
When ""#include"" is executed for the following file, the warning stack is destroyed.
The cause is a misuse of ""#pragma warning(default: warning-number-list)"".

File list
 * boost/archive/xml_wiarchive.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>
#include <boost/exception/all.hpp>
#pragma warning(error: 4193)

//boost/archive/xml_wiarchive.hpp
#pragma warning(pop) // => warning C4193
#include <boost/archive/xml_wiarchive.hpp>
#pragma warning(pop) // !!! There is not warning. !!!
#pragma warning(pop) // !!! There is not warning. !!!

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

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

Index: boost/archive/xml_wiarchive.hpp
===================================================================
--- boost/archive/xml_wiarchive.hpp	(revision 74236)
+++ boost/archive/xml_wiarchive.hpp	(working copy)
@@ -126,8 +126,7 @@
 } // namespace boost
 
 #ifdef BOOST_MSVC
-#  pragma warning(push)
-#  pragma warning(disable : 4511 4512)
+#pragma warning(pop)
 #endif
 
 #include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
}}}

 === 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	serialization	Boost 1.48.0	Problem	fixed