Updated to remove most of the warnings in Visual Studio. (There's still the one about all control paths returning a value left.) Fixed one warning (when an istream converts to void * to then convert to bool), and disabled three.

include/conversion.h

@@ -23,7 +23,8 @@ namespace YAML
 	inline bool Convert(const std::string& input, T& output, typename enable_if<is_numeric<T> >::type * = 0) {
 		std::stringstream stream(input);
 		stream.unsetf(std::ios::dec);
-		return stream >> output;
+		stream >> output;
+		return !!stream;
 	}
 }
 

include/node.h

@@ -20,7 +20,7 @@ namespace YAML
 	class Content;
 	class Scanner;
 	class Emitter;
-	class ParserState;
+	struct ParserState;
 
 	enum CONTENT_TYPE { CT_NONE, CT_SCALAR, CT_SEQUENCE, CT_MAP };
 

include/nodereadimpl.h

@@ -52,9 +52,10 @@ namespace YAML
 		int operator,(flag, flag);
 		
 		template<typename T>
-		void operator,(flag, T const&);
+		char operator,(flag, T const&);
 		
 		char operator,(int, flag);
+		int operator,(char, flag);
 	}
 
 	template <typename T>

include/parser.h

@@ -15,7 +15,7 @@
 namespace YAML
 {
 	class Scanner;
-	class ParserState;
+	struct ParserState;
 	struct Token;
 
 	class Parser: private noncopyable