bzr branch
http://bzr.ed.am/elec/propeller-clock
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57
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 C++ Library. This library is free |
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software; you can redistribute it and/or modify it under the |
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terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 2, or (at your option) |
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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 |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this library; see the file COPYING. If not, write to the Free |
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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USA. |
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*/ |
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#include <ios> |
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#include <cctype> |
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#include <streambuf> |
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#include <istream_helpers> |
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#include <ostream> |
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#ifndef __STD_HEADER_ISTREAM |
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#define __STD_HEADER_ISTREAM 1 |
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#pragma GCC visibility push(default) |
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namespace std{
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typedef basic_istream<char> istream; |
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#ifdef __UCLIBCXX_HAS_WCHAR__ |
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typedef basic_istream<wchar_t> wistream; |
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#endif |
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template <class charT, class traits> basic_istream<charT,traits>& ws(basic_istream<charT,traits>& is); |
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template <class charT, class traits> class _UCXXEXPORT basic_istream : |
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virtual public basic_ios<charT,traits> |
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{
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public: |
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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 basic_streambuf<charT,traits> streambuf_type; |
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typedef traits traits_type; |
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explicit basic_istream(basic_streambuf<charT,traits>* sb) |
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: basic_ios<charT, traits>(sb), count_last_ufmt_input(0) |
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{
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basic_ios<charT, traits>::init(sb); |
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} |
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virtual ~basic_istream() { }
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class sentry; |
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basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>& (*pf)(basic_istream<charT,traits>&)); |
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basic_istream<charT,traits>& operator>>(basic_ios<charT,traits>& (*pf)(basic_ios<charT,traits>&)); |
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basic_istream<charT,traits>& operator>>(ios_base& (*pf)(ios_base&)); |
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basic_istream<charT,traits>& operator>>(bool& n); |
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basic_istream<charT,traits>& operator>>(short& n); |
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basic_istream<charT,traits>& operator>>(unsigned short& n); |
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basic_istream<charT,traits>& operator>>(int& n); |
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basic_istream<charT,traits>& operator>>(unsigned int& n); |
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basic_istream<charT,traits>& operator>>(long& n); |
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basic_istream<charT,traits>& operator>>(unsigned long& n); |
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basic_istream<charT,traits>& operator>>(void*& p); |
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basic_istream<charT,traits>& operator>>(basic_streambuf<char_type,traits>* sb); |
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#ifdef __UCLIBCXX_HAS_FLOATS__ |
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basic_istream<charT,traits>& operator>>(float& f); |
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basic_istream<charT,traits>& operator>>(double& f); |
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basic_istream<charT,traits>& operator>>(long double& f); |
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#endif |
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_UCXXEXPORT streamsize gcount() const{
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return count_last_ufmt_input; |
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} |
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_UCXXEXPORT int_type get(); //below |
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_UCXXEXPORT basic_istream<charT,traits>& get(char_type& c); //Below |
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_UCXXEXPORT basic_istream<charT,traits>& get(char_type* s, streamsize n){
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return get(s, n, basic_ios<charT,traits>::widen('\n'));
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} |
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_UCXXEXPORT basic_istream<charT,traits>& get(char_type* s, streamsize n, char_type delim){
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sentry(*this, true); |
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streamsize i = 0; |
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int_type c; |
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for(i=0;i<n-1;++i){
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c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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if(c == traits::eof() ){
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if(i==0){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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}else{
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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} |
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break; |
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} |
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if(c == delim){
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if(i==0){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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} |
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basic_ios<charT, traits>::mstreambuf->sputbackc(c); |
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break; |
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} |
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s[i] = c; |
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} |
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s[i] = traits::eos(); |
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count_last_ufmt_input = i; |
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return *this; |
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} |
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_UCXXEXPORT basic_istream<charT,traits>& get(basic_streambuf<char_type,traits>& sb){
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return get(sb, basic_ios<charT,traits>::widen('\n'));
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} |
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_UCXXEXPORT basic_istream<charT,traits>& get(basic_streambuf<char_type,traits>& sb, char_type delim){
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sentry(*this, true); |
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streamsize i = 0; |
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int_type c; |
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while(1){ //We will exit internally based upon error conditions
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c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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if(c == traits::eof()){
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if(i==0){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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}else{
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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} |
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count_last_ufmt_input = i; |
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return *this; |
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} |
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if(c == delim){
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if(i==0){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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} |
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count_last_ufmt_input = i; |
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return *this; |
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} |
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if(sb.sputc(c) != c){ //Error doing output
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count_last_ufmt_input = i; |
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return *this; |
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} |
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++i; |
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basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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} |
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} |
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_UCXXEXPORT basic_istream<charT,traits>& getline(char_type* s, streamsize n){
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return getline(s, n, basic_ios<charT,traits>::widen('\n'));
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} |
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_UCXXEXPORT basic_istream<charT,traits>& getline(char_type* s, streamsize n, char_type delim){
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sentry(*this, true); |
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streamsize i = 0; |
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int_type c; |
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for(i=0;i<n-1;++i){
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c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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if(c == traits::eof() ){
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if( basic_ios<charT,traits>::eof() ){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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}else{
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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} |
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count_last_ufmt_input = i; |
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s[i] = traits::eos(); |
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return *this; |
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} |
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if(basic_ios<charT, traits>::mstreambuf->sbumpc()==traits::eof() ){
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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} |
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if(c == delim){
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count_last_ufmt_input = i+1; |
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s[i] = traits::eos(); |
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return *this; |
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} |
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s[i] = c; |
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} |
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s[n-1] = traits::eos(); |
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return *this; |
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} |
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_UCXXEXPORT basic_istream<charT,traits>& ignore (streamsize n = 1, int_type delim = traits::eof()){
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sentry(*this, true); |
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streamsize i; |
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int_type c; |
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for(i=0;i<n;++i){
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c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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if(c == traits::eof()){
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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return *this; |
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} |
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basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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if(c == delim){
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return *this; |
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} |
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} |
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return *this; |
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} |
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_UCXXEXPORT int_type peek(){
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if(basic_ios<charT,traits>::good() == false){
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return traits::eof(); |
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}else{
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int_type c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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if(c == traits::eof()){
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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} |
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return basic_ios<charT, traits>::mstreambuf->sgetc(); |
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} |
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} |
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_UCXXEXPORT basic_istream<charT,traits>& read (char_type* s, streamsize n){
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sentry(*this, true); |
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streamsize i; |
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int_type c; |
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for(i=0;i<n;++i){
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c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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if(c == traits::eof()){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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count_last_ufmt_input = i; |
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return *this; |
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} |
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basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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s[i] = c; |
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} |
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count_last_ufmt_input = n; |
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return *this; |
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} |
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_UCXXEXPORT streamsize readsome(char_type* s, streamsize n){
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sentry(*this, true); |
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if(!basic_ios<charT,traits>::good()){
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count_last_ufmt_input = 0; |
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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return 0; |
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} |
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if( basic_ios<charT, traits>::mstreambuf->in_avail() == -1){
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count_last_ufmt_input=0; |
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basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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return 0; |
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} |
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if(n > basic_ios<charT, traits>::mstreambuf->in_avail() ){
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n = basic_ios<charT, traits>::mstreambuf->in_avail(); |
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} |
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streamsize i; |
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int_type c; |
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for(i=0;i<n;++i){
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c = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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s[i] = c; |
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} |
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count_last_ufmt_input = n; |
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return n; |
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} |
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_UCXXEXPORT basic_istream<charT,traits>& putback(char_type c){
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sentry(*this, true); |
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if(!basic_ios<charT,traits>::good()){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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return *this; |
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} |
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if(basic_ios<charT, traits>::mstreambuf == 0){
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basic_ios<charT,traits>::setstate(ios_base::badbit); |
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return *this; |
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} |
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if(basic_ios<charT, traits>::mstreambuf->sputbackc(c) == traits::eof()){
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basic_ios<charT,traits>::setstate(ios_base::badbit); |
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return *this; |
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} |
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return *this; |
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} |
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_UCXXEXPORT basic_istream<charT,traits>& unget(){
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sentry(*this, true); |
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if(!basic_ios<charT,traits>::good()){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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return *this; |
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} |
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if(basic_ios<charT, traits>::mstreambuf == 0){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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return *this; |
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} |
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if(basic_ios<charT, traits>::mstreambuf->sungetc() == traits::eof()){
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basic_ios<charT,traits>::setstate(ios_base::failbit); |
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} |
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return *this; |
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} |
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_UCXXEXPORT int sync(){
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sentry(*this, true); |
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if(basic_ios<charT, traits>::mstreambuf == 0){
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return -1; |
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} |
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if(basic_ios<charT, traits>::mstreambuf->pubsync() == -1){
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basic_ios<charT,traits>::setstate(ios_base::badbit); |
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return traits::eof(); |
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} |
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return 0; |
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} |
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_UCXXEXPORT pos_type tellg(){
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if(basic_ios<charT,traits>::fail() !=false){
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return pos_type(-1); |
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} |
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return basic_ios<charT, traits>::mstreambuf->pubseekoff(0, ios_base::cur, ios_base::in); |
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} |
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321 |
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_UCXXEXPORT basic_istream<charT,traits>& seekg(pos_type pos){
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if(basic_ios<charT,traits>::fail() !=true){
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basic_ios<charT, traits>::mstreambuf->pubseekpos(pos); |
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} |
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return *this; |
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} |
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328 |
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_UCXXEXPORT basic_istream<charT,traits>& seekg(off_type off, ios_base::seekdir dir){
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if(basic_ios<charT,traits>::fail() !=true){
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basic_ios<charT, traits>::mstreambuf->pubseekoff(off, dir); |
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} |
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return *this; |
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} |
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335 |
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336 |
protected: |
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337 |
_UCXXEXPORT basic_istream(const basic_istream<charT,traits> &): basic_ios<charT, traits>() { }
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338 |
_UCXXEXPORT basic_istream<charT,traits> & operator=(const basic_istream<charT,traits> &){ return *this; }
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streamsize count_last_ufmt_input; |
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340 |
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341 |
}; |
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342 |
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343 |
template <class charT,class traits = char_traits<charT> > class _UCXXEXPORT basic_istream<charT,traits>::sentry {
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344 |
bool ok; |
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345 |
public: |
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346 |
explicit _UCXXEXPORT sentry(basic_istream<charT,traits>& os, bool noskipws = false){
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if(os.good() !=0){ //Prepare for output
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348 |
} |
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349 |
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//Flush any tied buffer |
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351 |
if(os.tie() != 0){
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os.tie()->flush(); |
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353 |
} |
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354 |
if(!noskipws){
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__skipws(os); |
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356 |
} |
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357 |
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358 |
ok = true; |
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} |
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360 |
_UCXXEXPORT ~sentry() { }
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361 |
_UCXXEXPORT operator bool() {
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362 |
return ok; |
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363 |
} |
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364 |
}; |
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365 |
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366 |
//Template implementations of basic_istream functions which may be partially specialized |
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367 |
//For code reduction |
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368 |
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369 |
template <class charT, class traits> |
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370 |
_UCXXEXPORT typename basic_istream<charT,traits>::int_type basic_istream<charT,traits>::get(){
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371 |
sentry(*this, true); |
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372 |
int_type retval = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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373 |
if(retval == traits::eof()){
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374 |
count_last_ufmt_input = 0; |
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375 |
basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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376 |
}else{
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377 |
count_last_ufmt_input = 1; |
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378 |
basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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379 |
} |
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380 |
return retval; |
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381 |
} |
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382 |
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383 |
template <class charT, class traits> |
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384 |
_UCXXEXPORT basic_istream<charT,traits>& basic_istream<charT,traits>::get(char_type& c){
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385 |
sentry(*this, true); |
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386 |
int_type retval = basic_ios<charT, traits>::mstreambuf->sgetc(); |
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387 |
if(retval == traits::eof()){
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388 |
count_last_ufmt_input = 0; |
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389 |
basic_ios<charT,traits>::setstate(ios_base::eofbit); |
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390 |
basic_ios<charT,traits>::setstate(ios_base::failbit); |
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391 |
}else{
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392 |
count_last_ufmt_input = 1; |
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393 |
c = traits::to_char_type(retval); |
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394 |
basic_ios<charT, traits>::mstreambuf->sbumpc(); |
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395 |
} |
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396 |
return *this; |
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397 |
} |
|
398 |
||
399 |
||
400 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
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401 |
basic_istream<charT,traits>::operator>>(bool& n) |
|
402 |
{
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403 |
sentry(*this); |
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404 |
__istream_readin<traits, charT, bool>::readin(*this, n); |
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405 |
return *this; |
|
406 |
} |
|
407 |
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408 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
409 |
basic_istream<charT,traits>::operator>>(short& n) |
|
410 |
{
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|
411 |
sentry(*this); |
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412 |
__istream_readin<traits, charT, short>::readin(*this, n); |
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413 |
return *this; |
|
414 |
} |
|
415 |
||
416 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
417 |
basic_istream<charT,traits>::operator>>(unsigned short& n) |
|
418 |
{
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|
419 |
sentry(*this); |
|
420 |
__istream_readin<traits, charT, unsigned short>::readin(*this, n); |
|
421 |
return *this; |
|
422 |
} |
|
423 |
||
424 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& basic_istream<charT,traits>::operator>>(int& n){
|
|
425 |
sentry(*this); |
|
426 |
__istream_readin<traits, charT, int>::readin(*this, n); |
|
427 |
return *this; |
|
428 |
} |
|
429 |
||
430 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& basic_istream<charT,traits>::operator>>(unsigned int& n){
|
|
431 |
sentry(*this); |
|
432 |
__istream_readin<traits, charT, unsigned int>::readin(*this, n); |
|
433 |
return *this; |
|
434 |
} |
|
435 |
||
436 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& basic_istream<charT,traits>::operator>>(long int& n){
|
|
437 |
sentry(*this); |
|
438 |
__istream_readin<traits, charT, long int>::readin(*this, n); |
|
439 |
return *this; |
|
440 |
} |
|
441 |
||
442 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
443 |
basic_istream<charT,traits>::operator>>(unsigned long int& n) |
|
444 |
{
|
|
445 |
sentry(*this); |
|
446 |
__istream_readin<traits, charT, unsigned long int>::readin(*this, n); |
|
447 |
return *this; |
|
448 |
} |
|
449 |
||
450 |
#ifdef __UCLIBCXX_HAS_FLOATS__ |
|
451 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
452 |
basic_istream<charT,traits>::operator>>(float& n) |
|
453 |
{
|
|
454 |
sentry(*this); |
|
455 |
__istream_readin<traits, charT, float>::readin(*this, n); |
|
456 |
return *this; |
|
457 |
} |
|
458 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
459 |
basic_istream<charT,traits>::operator>>(double& n) |
|
460 |
{
|
|
461 |
sentry(*this); |
|
462 |
__istream_readin<traits, charT, double>::readin(*this, n); |
|
463 |
return *this; |
|
464 |
} |
|
465 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
466 |
basic_istream<charT,traits>::operator>>(long double& n) |
|
467 |
{
|
|
468 |
sentry(*this); |
|
469 |
__istream_readin<traits, charT, long double>::readin(*this, n); |
|
470 |
return *this; |
|
471 |
} |
|
472 |
#endif |
|
473 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
474 |
basic_istream<charT,traits>::operator>>(void *& n) |
|
475 |
{
|
|
476 |
sentry(*this); |
|
477 |
__istream_readin<traits, charT, void*>::readin(*this, n); |
|
478 |
return *this; |
|
479 |
} |
|
480 |
||
481 |
template<class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
482 |
operator>>(basic_istream<charT,traits>& is, charT& c) |
|
483 |
{
|
|
484 |
typename basic_istream<charT,traits>::sentry s(is); |
|
485 |
is.get(c); |
|
486 |
return is; |
|
487 |
} |
|
488 |
||
489 |
template<class traits> _UCXXEXPORT basic_istream<char,traits>& |
|
490 |
operator>>(basic_istream<char,traits>& is, unsigned char& c) |
|
491 |
{
|
|
492 |
typename basic_istream<char,traits>::sentry s(is); |
|
493 |
char b; |
|
494 |
is.get(b); |
|
495 |
c = b; |
|
496 |
return is; |
|
497 |
} |
|
498 |
template<class traits> _UCXXEXPORT basic_istream<char,traits>& |
|
499 |
operator>>(basic_istream<char,traits>& is, signed char& c) |
|
500 |
{
|
|
501 |
typename basic_istream<char,traits>::sentry s(is); |
|
502 |
is.get(c); |
|
503 |
return is; |
|
504 |
} |
|
505 |
||
506 |
template<class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
507 |
operator>>(basic_istream<charT,traits>& is, charT* c) |
|
508 |
{
|
|
509 |
typename basic_istream<charT,traits>::sentry s(is); |
|
510 |
int n = is.width(); |
|
511 |
if(n == 0){
|
|
512 |
n = __STRING_MAX_UNITS; |
|
513 |
} |
|
514 |
is.get(c, n); |
|
515 |
return is; |
|
516 |
||
517 |
} |
|
518 |
template<class traits> _UCXXEXPORT basic_istream<char,traits>& |
|
519 |
operator>>(basic_istream<char,traits>& is, unsigned char* c) |
|
520 |
{
|
|
521 |
typename basic_istream<char,traits>::sentry s(is); |
|
522 |
int n = is.width(); |
|
523 |
if(n == 0){
|
|
524 |
n = __STRING_MAX_UNITS; |
|
525 |
} |
|
526 |
is.get(c, n); |
|
527 |
return is; |
|
528 |
} |
|
529 |
template<class traits> _UCXXEXPORT basic_istream<char,traits>& |
|
530 |
operator>>(basic_istream<char,traits>& is, signed char* c) |
|
531 |
{
|
|
532 |
typename basic_istream<char,traits>::sentry s(is); |
|
533 |
int n = is.width(); |
|
534 |
if(n == 0){
|
|
535 |
n = __STRING_MAX_UNITS; |
|
536 |
} |
|
537 |
is.get(c, n); |
|
538 |
return is; |
|
539 |
} |
|
540 |
||
541 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
542 |
basic_istream<charT,traits>::operator>>(basic_istream<charT,traits>& (*pf)(basic_istream<charT,traits>&)) |
|
543 |
{
|
|
544 |
sentry(*this); |
|
545 |
pf(*this); |
|
546 |
return *this; |
|
547 |
} |
|
548 |
||
549 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
550 |
basic_istream<charT,traits>::operator>>(basic_ios<charT,traits>& (*pf)(basic_ios<charT,traits>&)) |
|
551 |
{
|
|
552 |
sentry(*this); |
|
553 |
pf(*this); |
|
554 |
return *this; |
|
555 |
} |
|
556 |
||
557 |
template <class charT, class traits> _UCXXEXPORT basic_istream<charT,traits>& |
|
558 |
ws(basic_istream<charT,traits>& is) |
|
559 |
{
|
|
560 |
__skipws(is); |
|
561 |
return is; |
|
562 |
} |
|
563 |
||
564 |
||
565 |
#ifdef __UCLIBCXX_EXPAND_ISTREAM_CHAR__ |
|
566 |
#ifndef __UCLIBCXX_COMPILE_ISTREAM__ |
|
567 |
||
568 |
||
569 |
template <> _UCXXEXPORT istream & basic_istream<char, char_traits<char> >::get(char & c); |
|
570 |
template <> _UCXXEXPORT istream::int_type basic_istream<char, char_traits<char> >::get(); |
|
571 |
||
572 |
template <> _UCXXEXPORT istream & istream::operator>>(bool &n); |
|
573 |
template <> _UCXXEXPORT istream & istream::operator>>(short &n); |
|
574 |
template <> _UCXXEXPORT istream & istream::operator>>(unsigned short &n); |
|
575 |
template <> _UCXXEXPORT istream & istream::operator>>(int &n); |
|
576 |
template <> _UCXXEXPORT istream & istream::operator>>(unsigned int &n); |
|
577 |
template <> _UCXXEXPORT istream & istream::operator>>(long unsigned &n); |
|
578 |
template <> _UCXXEXPORT istream & istream::operator>>(long int &n); |
|
579 |
template <> _UCXXEXPORT istream & istream::operator>>(void *& p); |
|
580 |
||
581 |
#ifdef __UCLIBCXX_HAS_FLOATS__ |
|
582 |
template <> _UCXXEXPORT istream & istream::operator>>(float &f); |
|
583 |
template <> _UCXXEXPORT istream & istream::operator>>(double &f); |
|
584 |
template <> _UCXXEXPORT istream & istream::operator>>(long double &f); |
|
585 |
#endif |
|
586 |
||
587 |
template <> _UCXXEXPORT istream & operator>>(istream & is, char & c); |
|
588 |
||
589 |
template <> _UCXXEXPORT void __skipws(basic_istream<char,char_traits<char> >& is); |
|
590 |
||
591 |
#endif |
|
592 |
#endif |
|
593 |
||
594 |
||
595 |
||
596 |
} |
|
597 |
||
598 |
#pragma GCC visibility pop |
|
599 |
||
600 |
#endif |
|
601 |