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/* Copyright (C) 2004 Garrett A. Kajmowicz
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This file is part of the uClibc++ Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#if ! defined(__AVR__)
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#define __UCLIBCXX_COMPILE_FSTREAM__ 1
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#ifdef __UCLIBCXX_EXPAND_FSTREAM_CHAR__
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#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
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template _UCXXEXPORT filebuf::basic_filebuf();
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template _UCXXEXPORT filebuf::~basic_filebuf();
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#endif //__UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
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template _UCXXEXPORT filebuf::int_type filebuf::pbackfail(filebuf::int_type c);
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template _UCXXEXPORT filebuf * filebuf::open(const char* s, ios_base::openmode mode);
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template _UCXXEXPORT filebuf * filebuf::close();
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template _UCXXEXPORT filebuf::int_type filebuf::overflow(filebuf::int_type);
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template _UCXXEXPORT filebuf::int_type filebuf::underflow ();
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template _UCXXEXPORT streamsize filebuf::xsputn(const char* s, streamsize n);
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template _UCXXEXPORT basic_streambuf<char, char_traits<char> >*
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filebuf::setbuf(char * s, streamsize n);
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#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
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template _UCXXEXPORT basic_ofstream<char, char_traits<char> >::basic_ofstream();
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template _UCXXEXPORT basic_ofstream<char, char_traits<char> >::basic_ofstream(const char* s, ios_base::openmode mode);
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template _UCXXEXPORT basic_ofstream<char, char_traits<char> >::~basic_ofstream();
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template _UCXXEXPORT basic_ifstream<char, char_traits<char> >::basic_ifstream();
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template _UCXXEXPORT basic_ifstream<char, char_traits<char> >::basic_ifstream(const char* s, ios_base::openmode mode);
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template _UCXXEXPORT basic_ifstream<char, char_traits<char> >::~basic_ifstream();
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#endif //__UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
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#ifdef __UCLIBCXX_HAS_WCHAR__
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template <> _UCXXEXPORT basic_filebuf<wchar_t, char_traits<wchar_t> >::int_type
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basic_filebuf<wchar_t, char_traits<wchar_t> >::overflow(int_type c)
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typedef basic_streambuf<wchar_t, char_traits<wchar_t> > wstreambuf;
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typedef char_traits<wchar_t> wtraits;
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if(is_open() == false){
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return wtraits::eof();
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if( wstreambuf::pbase() != 0 ){
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//Write all possible character from the existing array first
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size_t chars_written = 0;
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while(wstreambuf::pbase() && (wstreambuf::pbase() + chars_written !=wstreambuf::pptr()) ){
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out_size = wcrtomb(out_array, wstreambuf::pbase()[chars_written], &ps);
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if(out_size == (size_t)(-1) || fwrite(out_array, out_size, 1, fp) == 0){
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if( wstreambuf::pbase() + chars_written == wstreambuf::pptr() ){
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wstreambuf::pbump(-chars_written);
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//Shuffle data back into order
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size_t chars_left = wstreambuf::pptr() - wstreambuf::pbase() - chars_written;
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for(size_t i = 0; i < chars_left; ++i){
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wstreambuf::pbase()[i] = (wstreambuf::pptr() - chars_written)[i];
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return wtraits::eof();
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if( !wtraits::eq_int_type(c, wtraits::eof()) ){
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out_size = wcrtomb(out_array, c, &ps);
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if(out_size == (size_t)(-1) || fwrite(out_array, out_size, 1, fp) == 0){
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return wtraits::eof();
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return wtraits::not_eof(c);
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template <> _UCXXEXPORT basic_filebuf<wchar_t, char_traits<wchar_t> >::int_type
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basic_filebuf<wchar_t, char_traits<wchar_t> >::underflow()
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/*Some variables used internally:
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eback() returns mgbeg
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gptr() returns mgnext
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egptr() returns mgend
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gbump(int n) mgnext+=n
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typedef char_traits<wchar_t> traits;
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typedef basic_streambuf<wchar_t, traits> wstreambuf;
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if(wstreambuf::eback() == wstreambuf::gptr() && 0 != wstreambuf::eback()){ //Buffer is full
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return traits::to_int_type(*wstreambuf::gptr());
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fprintf(stderr, "WEOF returned by fgetwc\n");
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return traits::eof();
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c = traits::to_char_type(wi);
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if(wstreambuf::eback() == 0){
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return traits::to_int_type(c);
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for(wchar_t * i = wstreambuf::gptr(); i < wstreambuf::egptr(); ++i){
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*(wstreambuf::egptr()-1) = c;
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wstreambuf::mgnext -= 1;
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return traits::to_int_type(*wstreambuf::gptr());
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#endif // __UCLIBCXX_HAS_WCHAR__
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#endif // not ARDUINO
added
removed
src/utility/fstream.cpp
