bzr branch
http://bzr.ed.am/elec/propeller-clock
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by edam
added ulibc |
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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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*/ |
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#include <basic_definitions> |
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#include <locale> |
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#include <string> |
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#include <iosfwd> |
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#ifndef HEADER_STD_STREAMBUF |
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#define HEADER_STD_STREAMBUF 1 |
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#include <ios> |
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#pragma GCC visibility push(default) |
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namespace std{
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template <class charT, class traits> class _UCXXEXPORT basic_streambuf{
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public: |
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#ifdef __UCLIBCXX_SUPPORT_CDIR__ |
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friend ios_base::Init::Init(); |
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#endif |
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// Types: |
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typedef charT char_type; |
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typedef typename traits::int_type int_type; |
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typedef typename traits::pos_type pos_type; |
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typedef typename traits::off_type off_type; |
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typedef traits traits_type; |
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virtual ~basic_streambuf(); |
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locale pubimbue(const locale &loc); |
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locale getloc() const{
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return myLocale; |
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} |
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basic_streambuf<char_type,traits>* pubsetbuf(char_type* s, streamsize n){
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return setbuf(s,n); |
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} |
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pos_type pubseekoff(off_type off, |
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typename ios_base::seekdir way, |
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ios_base::openmode which = ios_base::in | |
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ios_base::out |
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) |
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{
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return seekoff(off,way,which); |
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} |
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pos_type pubseekpos(pos_type sp, ios_base::openmode which = ios_base::in | ios_base::out){
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return seekpos(sp,which); |
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} |
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int pubsync(){
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return sync(); |
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} |
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streamsize in_avail(); |
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int_type snextc(); |
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int_type sbumpc(); |
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int_type sgetc(); |
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streamsize sgetn(char_type* s, streamsize n){
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return xsgetn(s,n); |
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} |
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int_type sputbackc(char_type c); |
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int_type sungetc(); |
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int_type sputc(char_type c); |
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streamsize sputn(const char_type* s, streamsize n){
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if(openedFor & ios_base::app){
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seekoff(0, ios_base::end, ios_base::out); |
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} |
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return xsputn(s, n); |
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} |
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protected: |
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locale myLocale; |
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//Pointers for the "get" buffers |
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charT * mgbeg; |
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charT * mgnext; |
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charT * mgend; |
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//Pointers for the "put" buffers |
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charT * mpbeg; |
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charT * mpnext; |
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charT * mpend; |
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//In the event of null buffers Lets us know what the buffer is opened for |
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ios_base::openmode openedFor; |
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basic_streambuf(); |
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basic_streambuf(const basic_streambuf<char, char_traits<char> > &) |
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: myLocale(), |
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mgbeg(0), mgnext(0), mgend(0), mpbeg(0), mpnext(0), mpend(0), |
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openedFor(0) |
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{ }
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basic_streambuf<char, char_traits<char> > & operator=(const basic_streambuf<char, char_traits<char> > &){
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return *this; |
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} |
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char_type* eback() const{
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return mgbeg; |
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} |
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char_type* gptr() const{
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return mgnext; |
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} |
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char_type* egptr() const{
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return mgend; |
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} |
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void gbump(int n){
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mgnext+=n; |
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} |
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void setg(char_type* gbeg, char_type* gnext, char_type* gend){
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mgbeg = gbeg; |
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mgnext = gnext; |
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mgend = gend; |
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} |
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char_type* pbase() const{
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return mpbeg; |
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} |
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char_type* pptr() const{
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return mpnext; |
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} |
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char_type* epptr() const{
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return mpend; |
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} |
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void pbump(int n){
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mpnext+=n; |
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} |
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void setp(char_type* pbeg, char_type* pend){
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mpbeg = pbeg; |
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mpnext = pbeg; |
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mpend = pend; |
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} |
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virtual void imbue(const locale &loc){
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myLocale = loc; |
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} |
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//Virtual functions which we will not implement |
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virtual basic_streambuf<char_type,traits>* setbuf(char_type* , streamsize){
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return 0; |
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} |
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virtual pos_type seekoff(off_type , ios_base::seekdir, |
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ios_base::openmode = ios_base::in | ios_base::out) |
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{
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return 0; |
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} |
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virtual pos_type seekpos(pos_type , ios_base::openmode = ios_base::in | ios_base::out){
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return 0; |
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} |
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virtual int sync(){
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return 0; |
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} |
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virtual int showmanyc(){
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return 0; |
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} |
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virtual streamsize xsgetn(char_type* , streamsize ){
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return 0; |
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} |
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virtual int_type underflow(){
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return traits_type::eof(); |
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} |
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virtual int_type uflow(){
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int_type ret = underflow(); |
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if (!traits_type::eq_int_type(ret, traits_type::eof())) |
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gbump(1); |
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return ret; |
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} |
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virtual int_type pbackfail(int_type c = traits::eof()){
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return c; |
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} |
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virtual streamsize xsputn(const char_type* c, streamsize n){
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//This function is designed to be replaced by subclasses |
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for(streamsize i = 0; i< n; ++i){
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if(sputc(c[i]) == traits::eof()){
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return i; |
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} |
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} |
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return n; |
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} |
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virtual int_type overflow (int_type c = traits::eof()){
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return c; |
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} |
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}; |
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typedef basic_streambuf<char> streambuf; |
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#ifdef __UCLIBCXX_HAS_WCHAR__ |
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typedef basic_streambuf<wchar_t> wstreambuf; |
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#endif |
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//Definitions put below to allow for easy expansion of code |
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template <class C, class T> basic_streambuf<C, T>::~basic_streambuf(){ }
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template <class C, class T> locale basic_streambuf<C, T>::pubimbue(const locale &loc){
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locale temp = myLocale; |
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myLocale = loc; |
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return temp; |
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} |
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template <class C, class T> streamsize basic_streambuf<C, T>::in_avail(){
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if(mgend !=0 && mgnext !=0){
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return mgend - mgnext; |
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} |
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return showmanyc(); |
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} |
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template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sbumpc(){
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if(mgbeg == 0 || mgnext == mgend){
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return uflow(); |
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} |
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int_type retval = T::to_int_type(*gptr()); |
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gbump(1); |
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return retval; |
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} |
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template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::snextc(){
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if(sbumpc() == T::eof() ){
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return T::eof() ; |
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} |
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return sgetc(); |
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} |
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template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sgetc(){
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if(mgbeg == 0 || mgnext == mgend){
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return underflow(); |
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} |
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return T::to_int_type(*gptr()); |
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} |
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template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sputbackc(char_type c){
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if(mgbeg == 0 || mgnext == mgbeg || !T::eq(c, gptr()[-1] )){
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return pbackfail(T::to_int_type(c)); |
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} |
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gbump(-1); |
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return T::to_int_type(*gptr()); |
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} |
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template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sungetc(){
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if(mgbeg == 0 || mgnext == mgbeg){
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return ios_base::failbit; |
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} |
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gbump(-1); |
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return T::to_int_type(*gptr()); |
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} |
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template <class C, class T> typename basic_streambuf<C, T>::int_type basic_streambuf<C, T>::sputc(char_type c){
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if(openedFor & ios_base::app){
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seekoff(0, ios_base::end, ios_base::out); |
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} |
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if(mpnext < mpend){
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*mpnext = c; |
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++mpnext; |
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}else{
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return overflow( T::to_int_type(c) ); |
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} |
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return T::to_int_type(c); |
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} |
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template <class C, class T> basic_streambuf<C, T>::basic_streambuf() |
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: myLocale(), |
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mgbeg(0), mgnext(0), mgend(0), mpbeg(0), mpnext(0), mpend(0), |
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openedFor(0) |
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{ }
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#ifdef __UCLIBCXX_EXPAND_STREAMBUF_CHAR__ |
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#ifndef __UCLIBCXX_COMPILE_STREAMBUF__ |
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#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
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template <> _UCXXEXPORT streambuf::basic_streambuf(); |
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template <> _UCXXEXPORT streambuf::~basic_streambuf(); |
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#endif //__UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
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template <> _UCXXEXPORT locale streambuf::pubimbue(const locale &loc); |
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template <> _UCXXEXPORT streamsize streambuf::in_avail(); |
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template <> _UCXXEXPORT streambuf::int_type streambuf::sbumpc(); |
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template <> _UCXXEXPORT streambuf::int_type streambuf::snextc(); |
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template <> _UCXXEXPORT streambuf::int_type streambuf::sgetc(); |
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template <> _UCXXEXPORT streambuf::int_type streambuf::sputbackc(char_type c); |
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template <> _UCXXEXPORT streambuf::int_type streambuf::sungetc(); |
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template <> _UCXXEXPORT streambuf::int_type streambuf::sputc(char_type c); |
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#endif |
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#endif |
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} |
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#pragma GCC visibility pop |
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#endif |