Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.

 using _STLP_NEW_IO_NAMESPACE::basic_streambuf;

 using _STLP_NEW_IO_NAMESPACE::streambuf;

 #ifndef _STLP_NO_WIDE_STREAMS

 using _STLP_NEW_IO_NAMESPACE::wstreambuf;

 # endif