diff --git a/IOStreams/StackableStreambuf.h b/IOStreams/StackableStreambuf.h
index ab608d7..a1eb219 100644
--- a/IOStreams/StackableStreambuf.h
+++ b/IOStreams/StackableStreambuf.h
@@ -32,19 +32,27 @@ namespace Alepha::Hydrogen::IOStreams  ::detail::  StackableStreambuf_m
 		protected:
 			// EEEW.  But to sidestep/circumvent, all this below is necessary.
 			auto
-			forwardOverflow( const int ch ) const
+			forwardOverflow( const int ch )
 			{
 				int (std::streambuf::*ov)( int )= &StackableStreambufUnderlyingShim::overflow;
 				return ( getUnderlying()->*ov )( ch );
 			}
 
 			auto
-			forwardUnderflow() const
+			forwardUnderflow()
 			{
 				int (std::streambuf::*uf)()= &StackableStreambufUnderlyingShim::underflow;
 				return (getUnderlying()->*uf)();
 			}
 
+			auto
+			underlying_sbumpc() const
+			{
+				int (std::streambuf::*sbc)()= &StackableStreambufUnderlyingShim::sbumpc;
+				return (getUnderlying()->*sbc)();
+			}
+
+
 			auto
 			underlying_eback() const
 			{
@@ -72,6 +80,28 @@ namespace Alepha::Hydrogen::IOStreams  ::detail::  StackableStreambuf_m
 				void (std::streambuf::*sg)( char *, char *, char * )= &StackableStreambufUnderlyingShim::setg;
 				return (getUnderlying()->*sg)( b, g, e );
 			}
+
+
+			auto
+			underlying_pbase() const
+			{
+				char *(std::streambuf::*pb)() const= &StackableStreambufUnderlyingShim::pbase;
+				return (getUnderlying()->*pb)();
+			}
+
+			auto
+			underlying_pptr() const
+			{
+				char *(std::streambuf::*pp)() const= &StackableStreambufUnderlyingShim::pptr;
+				return (getUnderlying()->*pp)();
+			}
+
+			auto
+			underlying_epptr() const
+			{
+				char *(std::streambuf::*ep)() const= &StackableStreambufUnderlyingShim::epptr;
+				return (getUnderlying()->*ep)();
+			}
 	};
 
 	struct exports::StackableStreambuf
@@ -94,7 +124,7 @@ namespace Alepha::Hydrogen::IOStreams  ::detail::  StackableStreambuf_m
 			void unhook( std::istream &is ) const;
 
 		protected:
-			std::ostream &out( std::ostream &&res= std::ostream{nullptr} ) const;
+			std::ostream &out( std::ostream &&res= std::ostream{ nullptr } ) const;
 
 			int overflow( const int ch ) override;