boost/format/outsstream_impl.hpp
// -*- C++ -*-
// Boost format ----------------------------------------------------
// See http://www.boost.org for updates, documentation, and revision history.
// (C) Samuel Krempp 2003
// Permission to copy, use, modify, sell and
// distribute this software is granted provided this copyright notice appears
// in all copies. This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
// ------------------------------------------------------------------------------
// implementation included by outsstream.hpp.
// ------------------------------------------------------------------------------
namespace boost {
namespace io {
#if !defined(BOOST_NO_STRINGSTREAM) && !defined(BOOST_FORMAT_IGNORE_STRINGSTREAM)
template<class Ch, class Tr> inline
void steal_basic_stringbuf<Ch, Tr> :: clear_buffer() {
const Ch * p = pptr();
const Ch * b = pbase();
if(p != NULL && p != b) {
typedef typename Tr::pos_type pos_type;
pos_type pos = buff_t::seekpos(0, std::ios_base::out);
BOOST_ASSERT( pos != pos_type(std::streamoff(-1)) );
}
}
#else // BOOST_NO_STRINGSTREAM
template <class Tr> inline
basic_outsstream<char,Tr> ::basic_outsstream() :
buff_t(),
stream_t(this)
{
stream_t::init(this); // the strem construction isnt enough with gcc-2.95
}
template <class Tr>
std::basic_string<char, Tr>
basic_outsstream<char, Tr> ::str() { // ! physically copy chars :
string_type s(buff_t::str(), pcount());
freeze(false);
return s;
}
template<class Tr > inline
void
basic_outsstream<char, Tr>:: clear_buffer() {
freeze(false);
const Ch * p = cur();
const Ch * b = begin();
if(p != NULL && p != b) {
buff_t::seekpos(0, std::ios_base::out);
}
freeze(false);
}
#endif
} //namespace io
} //namespace boost
