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fixes for VC with STLPort; better commenting

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[SVN r28190]
This commit is contained in:
Jonathan Turkanis
2005-04-13 04:19:21 +00:00
parent d5076b1e24
commit 3a18bc4132
1 changed files with 18 additions and 12 deletions
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30
include/boost/iostreams/positioning.hpp
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@@ -22,20 +22,20 @@ namespace boost { namespace iostreams {
typedef boost::intmax_t stream_offset;
#if (defined(_YVALS) && !defined(__IBMCPP__)) //------------------------------//
#if ((defined(_YVALS) && !defined(__IBMCPP__)) || defined(_CPPLIB_VER)) && \
!defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION) \
/**/
/* Dinkumware */
inline std::streampos offset_to_position(stream_offset off)
{
// use implementation-specific constructor
// Use implementation-specific constructor.
return std::streampos(std::mbstate_t(), off);
}
#if defined(_POSIX_)
#error
#endif
inline stream_offset fpos_t_to_offset(fpos_t pos)
{
{ // Helper function.
#if defined(_POSIX_) || (_INTEGRAL_MAX_BITS >= 64)
return pos;
#else
@@ -43,29 +43,35 @@ inline stream_offset fpos_t_to_offset(fpos_t pos)
#endif
}
# if defined(_CPPLIB_VER) // Recent Dinkumware.
# if defined(_CPPLIB_VER) //--------------------------------------------------//
/* Recent Dinkumware */
inline stream_offset position_to_offset(std::streampos pos)
{
// use implementation-specific member function seekpos()
// Use implementation-specific member function seekpos().
return fpos_t_to_offset(pos.seekpos()) +
stream_offset(std::streamoff(pos)) -
stream_offset(std::streamoff(pos.seekpos()));
}
# else // Old Dinkumware.
# else // # if defined(_CPPLIB_VER) //----------------------------------------//
/* Old Dinkumware */
inline stream_offset position_to_offset(std::streampos pos)
{
// use implementation-specific member function seekpos()
// use implementation-specific member function get_fpos_t().
return fpos_t_to_offset(pos.get_fpos_t()) +
stream_offset(std::streamoff(pos)) -
stream_offset(std::streamoff(pos.get_fpos_t()));
}
# endif
# endif // # if defined(_CPPLIB_VER) //---------------------------------------//
#else // Dinkumware //--------------------------------------------------------//
/* Non-Dinkumware */
inline std::streampos offset_to_position(stream_offset off) { return off; }
inline stream_offset position_to_offset(std::streampos pos) { return pos; }