269 lines
6 KiB
C++
269 lines
6 KiB
C++
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#ifndef __STREAMBU_CC
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#define __STREAMBU_CC
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#pragma option push -b -a8 -pc -Vx- -Ve- -w-inl -w-aus -w-sig
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/***************************************************************************
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*
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* streambuf.cc - Definitions for the Standard Library stream buffers
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*
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***************************************************************************
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*
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* Copyright (c) 1994-1999 Rogue Wave Software, Inc. All Rights Reserved.
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*
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* This computer software is owned by Rogue Wave Software, Inc. and is
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* protected by U.S. copyright laws and other laws and by international
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* treaties. This computer software is furnished by Rogue Wave Software,
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* Inc. pursuant to a written license agreement and may be used, copied,
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* transmitted, and stored only in accordance with the terms of such
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* license and with the inclusion of the above copyright notice. This
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* computer software or any other copies thereof may not be provided or
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* otherwise made available to any other person.
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*
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* U.S. Government Restricted Rights. This computer software is provided
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* with Restricted Rights. Use, duplication, or disclosure by the
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* Government is subject to restrictions as set forth in subparagraph (c)
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* (1) (ii) of The Rights in Technical Data and Computer Software clause
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* at DFARS 252.227-7013 or subparagraphs (c) (1) and (2) of the
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* Commercial Computer Software <EFBFBD> Restricted Rights at 48 CFR 52.227-19,
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* as applicable. Manufacturer is Rogue Wave Software, Inc., 5500
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* Flatiron Parkway, Boulder, Colorado 80301 USA.
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*
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**************************************************************************/
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#ifndef _RWSTD_NO_NAMESPACE
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namespace std {
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#endif
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/*
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* class basic_streambuf<charT, traits>
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*/
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/*
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* ~basic_streambuf()
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*/
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template<class charT, class traits>
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basic_streambuf<charT, traits>::~basic_streambuf()
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{
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}
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/*
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* basic_streambuf()
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*/
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template<class charT, class traits>
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basic_streambuf<charT, traits>::basic_streambuf()
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{
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streambuf_init();
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}
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/*
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* void streambuf_init()
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*/
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template<class charT, class traits>
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void basic_streambuf<charT, traits>::streambuf_init(bool set_mode)
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{
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if ( set_mode )
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mode_ = ( ios_base::in | ios_base::out );
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__gbeg = 0;
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__gnext = 0;
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__gend = 0;
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__pbeg = 0;
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__pnext = 0;
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__pend = 0;
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}
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/*
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* int_type overflow(int_type)
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*/
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template<class charT, class traits>
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_TYPENAME basic_streambuf<charT, traits>::int_type
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basic_streambuf<charT, traits>::overflow(int_type )
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{
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return traits::eof();
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}
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/*
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* int_type pbackfail(int_type)
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*/
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template<class charT, class traits>
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_TYPENAME basic_streambuf<charT, traits>::int_type
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basic_streambuf<charT, traits>::pbackfail(int_type )
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{
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return traits::eof();
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}
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/*
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* streamsize showmanyc()
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*/
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template<class charT, class traits>
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streamsize basic_streambuf<charT, traits>::showmanyc()
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{
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if ( gptr() )
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{
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if ( pptr()>egptr() ) setg(eback(),gptr(),pptr());
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}
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else
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if ( pptr() ) setg(pbase(),pbase(),pptr());
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return (streamsize)(egptr()-gptr());
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}
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/*
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* int_type underflow()
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*/
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template<class charT, class traits>
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_TYPENAME basic_streambuf<charT, traits>::int_type
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basic_streambuf<charT, traits>::underflow()
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{
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return traits::eof();
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}
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/*
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* int_type uflow()
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*/
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template<class charT, class traits>
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_TYPENAME basic_streambuf<charT, traits>::int_type
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basic_streambuf<charT, traits>::uflow()
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{
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if( traits::eq_int_type(underflow(),traits::eof()) )
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return traits::eof();
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return sbumpc();
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}
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/*
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* streamsize xsgetn(char_type *, streamsize)
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*/
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template<class charT, class traits>
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streamsize basic_streambuf<charT, traits>::
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xsgetn(char_type *s, streamsize n)
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{
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if ( !s || (n==0) ) return 0;
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streamsize i = ( in_avail() > n ) ? n : in_avail();
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int_type c;
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if(i > 0) {
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s = traits::copy(s, gptr(), i);
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s += i;
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gbump(i);
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}
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while((i < n) && ( !traits::eq_int_type( (c = sbumpc()),traits::eof()))) {
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*s++ = traits::to_char_type(c);
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++i;
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}
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return i;
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}
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/*
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* streamsize xsputn(const char_type *, streamsize)
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*/
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template<class charT, class traits>
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streamsize basic_streambuf<charT, traits>::
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xsputn(const char_type *s, streamsize n)
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{
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if ( !s || (n == 0) ) return 0;
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int i=0;
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while((i < n) && ( !traits::eq_int_type(sputc(*s++),traits::eof()))) {
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i++;
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}
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return i;
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}
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/*
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* pos_type seekoff(off_type, ios_base::seekdir, ios_base::openmode)
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*/
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template<class charT, class traits>
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_TYPENAME basic_streambuf<charT, traits>::pos_type
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basic_streambuf<charT, traits>::
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seekoff(off_type , ios_base::seekdir , ios_base::openmode )
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{
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return pos_type(off_type(-1));
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}
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/*
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* pos_type seekpos(pos_type, ios_base::openmode)
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*/
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template<class charT, class traits>
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_TYPENAME basic_streambuf<charT, traits>::pos_type
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basic_streambuf<charT, traits>::
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seekpos(pos_type , ios_base::openmode )
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{
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return pos_type(off_type(-1));
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}
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/*
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* basic_streambuf *setbuf(char_type *, streamsize)
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*/
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template<class charT, class traits>
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basic_streambuf<charT, traits> *
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basic_streambuf<charT, traits>::setbuf(char_type*, streamsize )
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{
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return this;
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}
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/*
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* int sync()
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*/
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template<class charT, class traits>
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int basic_streambuf<charT, traits>::sync()
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{
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return 0;
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}
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/*
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* locale pubimbue(const locale& loc)
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*/
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template<class charT, class traits>
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locale basic_streambuf<charT, traits>::pubimbue(const locale& loc)
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{
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locale tmp = getloc();
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imbue(loc);
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return tmp;
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}
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/*
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* locale getloc() const
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*/
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template<class charT, class traits>
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locale basic_streambuf<charT, traits>::getloc() const
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{
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return __loc_buf;
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}
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/*
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* virtual void imbue(const locale& loc)
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*/
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template<class charT, class traits>
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void basic_streambuf<charT, traits>::imbue(const locale& loc)
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{
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__loc_buf = loc;
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}
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#ifndef _RWSTD_NO_NAMESPACE
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}
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#endif
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#pragma option pop
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#endif /* __STREAMBU_CC */
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