Making makefile a bit nicer, moving some code around in xml.hpp to better organize it

Makefile

@@ -1,27 +1,27 @@
 CPPFLAGS=-std=c++11 -I./include -Wall -Werror -g 
-CC=g++
+CXX=g++
 COVERAGE_OUTPUT=out
 
 all: unittests sandbox performance sandbox_rtti sandbox_json
 
 sandbox: sandbox.cpp
-	${CC} sandbox.cpp -o sandbox ${CPPFLAGS}
+	${CXX} sandbox.cpp -o sandbox ${CPPFLAGS}
 
 sandbox_json: sandbox_json.cpp
-	${CC} sandbox_json.cpp -o sandbox_json ${CPPFLAGS}
+	${CXX} sandbox_json.cpp -o sandbox_json ${CPPFLAGS}
 
 sandbox_rtti: sandbox_rtti.cpp
-	${CC} sandbox_rtti.cpp -o sandbox_rtti ${CPPFLAGS} -O3
+	${CXX} sandbox_rtti.cpp -o sandbox_rtti ${CPPFLAGS} -O3
 
 sandbox_vs: sandbox_vs.cpp
-	${CC} sandbox_vs.cpp -o sandbox_vs ${CPPFLAGS}
+	${CXX} sandbox_vs.cpp -o sandbox_vs ${CPPFLAGS}
 
 unittests: unittests.cpp
-	${CC} unittests.cpp -o unittests -lboost_unit_test_framework ${CPPFLAGS}
+	${CXX} unittests.cpp -o unittests -lboost_unit_test_framework ${CPPFLAGS}
 	./unittests --show_progress
 
 performance: performance.cpp
-	${CC} performance.cpp -o performance -lboost_serialization ${CPPFLAGS} -O3
+	${CXX} performance.cpp -o performance -lboost_serialization ${CPPFLAGS} -O3
 
 .PHONY: coverage
 coverage:
@@ -35,5 +35,6 @@ coverage:
 doc:
 	@doxygen ./doc/doxygen.cfg
 
+.PHONY: clean
 clean:
-	rm sandbox; rm unittests; rm performance; rm sandbox_rtti; rm sandbox_json;
+	-@rm *.o sandbox unittests performance sandbox_rtti sandbox_json 2>/dev/null || true

include/cereal/archives/xml.hpp

@@ -80,6 +80,10 @@ namespace cereal
   class XMLOutputArchive : public OutputArchive<XMLOutputArchive>
   {
     public:
+      /*! @name External Functionality
+          Common use cases for directly interacting with an XMLOutputArchive */
+      //! @{
+
       //! Construct, outputting to the provided stream upon destruction
       /*! @param stream The stream to output to.  Can be a stringstream, a file stream, or
                         even cout!  Note that since this archive builds a tree in memory,
@@ -117,6 +121,30 @@ namespace cereal
         itsXML.clear();
       }
 
+      //! Saves some binary data, encoded as a base64 string, with an optional name
+      /*! This will create a new node, optionally named, and insert a value that consists of
+          the data encoded as a base64 string */
+      void saveBinaryValue( const void * data, size_t size, const char * name = nullptr )
+      {
+        itsNodes.top().name = name;
+
+        startNode();
+
+        auto base64string = base64::encode( reinterpret_cast<const unsigned char *>( data ), size );
+        saveValue( base64string );
+
+        if( itsOutputType )
+          itsNodes.top().node->append_attribute( itsXML.allocate_attribute( "type", "cereal binary data" ) );
+
+        finishNode();
+      };
+
+      //! @}
+      /*! @name Internal Functionality
+          Functionality designed for use by those requiring control over the inner mechanisms of
+          the XMLOutputArchive */
+      //! @{
+
       //! Creates a new node that is a child of the node at the top of the stack
       /*! Nodes will be given a name that has either been pre-set by a name value pair,
           or generated based upon a counter unique to the parent node.
@@ -177,24 +205,6 @@ namespace cereal
         saveValue( static_cast<int32_t>( value ) );
       }
 
-      //! Saves some binary data, encoded as a base64 string, with an optional name
-      /*! This will create a new node, optionally named, and insert a value that consists of
-          the data encoded as a base64 string */
-      void saveBinaryValue( const void * data, size_t size, const char * name = nullptr )
-      {
-        itsNodes.top().name = name;
-
-        startNode();
-
-        auto base64string = base64::encode( reinterpret_cast<const unsigned char *>( data ), size );
-        saveValue( base64string );
-
-        if( itsOutputType )
-          itsNodes.top().node->append_attribute( itsXML.allocate_attribute( "type", "cereal binary data" ) );
-
-        finishNode();
-      };
-
       //! Causes the type to be appended to the most recently made node if output type is set to true
       template <class T> inline
       void insertType()
@@ -251,6 +261,8 @@ namespace cereal
         }
       }; // NodeInfo
 
+      //! @}
+
     private:
       std::ostream & itsStream;        //!< The output stream
       rapidxml::xml_document<> itsXML; //!< The XML document

sandbox_json.cpp

@@ -322,6 +322,14 @@ int main()
     auto f2 = f;
     archive( f );
     archive( f2 );
+
+    enum Bla
+    {
+      x,
+      y
+    };
+
+    archive( Bla::x );
   }