Standard C++ Library Reference ISO/IEC (VERSION3)

input buffer.
For a stream buffer with common input and output streams, it can make a putback
position available by writing out, to some external destination, some or all of the
elements between the beginning and next pointers for the output buffer.
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If the function cannot succeed, it returns traits_type::eof() or throws an exception.
Otherwise, it returns some other value. The default behavior is to return
traits_type::eof().
basic_streambuf::pbase
char_type *pbase() const;
The member function returns a pointer to the beginning of the output buffer.
basic_streambuf::pbump
void pbump(int count);
The member function adds count to the next pointer for the output buffer.
basic_streambuf::pos_type
typedef typename traits_type::pos_type pos_type;
The type is a synonym for traits_type::pos_type.
basic_streambuf::pptr
char_type *pptr() const;
The member function returns a pointer to the next element of the output buffer.
basic_streambuf::pubimbue
locale pubimbue(const locale& loc);
The member function stores loc in the locale object, calls imbue(), then returns the previous
value stored in the locale object.
basic_streambuf::pubseekoff
pos_type pubseekoff(off_type off,
ios_base::seekdir way,
ios_base::openmode which =
ios_base::in | ios_base::out);