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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 |
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#ifndef HEADER_STD_SSTREAM |
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#define HEADER_STD_SSTREAM 1 |
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#include |
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#include |
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#include |
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#include |
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#include |
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#include |
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#pragma GCC visibility push(default) |
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namespace std{ |
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template |
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class _UCXXEXPORT basic_stringbuf : public basic_streambuf |
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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 typename Allocator::size_type size_type; |
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explicit _UCXXEXPORT basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out) |
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: data(), ielement(0), oelement(0) |
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{ |
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basic_streambuf::openedFor = which; |
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} |
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explicit _UCXXEXPORT basic_stringbuf(const basic_string& str, |
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ios_base::openmode which = ios_base::in | ios_base::out) |
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: data(str), ielement(0), oelement(0) |
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{ |
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if(which & ios_base::ate){ |
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oelement = data.length(); |
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} |
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basic_streambuf::openedFor = which; |
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} |
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virtual _UCXXEXPORT ~basic_stringbuf() { } |
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_UCXXEXPORT basic_string str() const{ |
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return data; |
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} |
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_UCXXEXPORT void str(const basic_string& s){ |
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data = s; |
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ielement = 0; |
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if(basic_streambuf::openedFor & ios_base::ate){ |
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oelement = data.length(); |
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}else{ |
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oelement = 0; |
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} |
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} |
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protected: |
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virtual _UCXXEXPORT int sync(){ |
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return 0; |
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} |
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virtual _UCXXEXPORT int_type underflow(){ |
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if(ielement >= data.length()){ |
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return traits::eof(); |
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} |
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return traits::to_int_type(data[ielement]); |
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} |
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virtual _UCXXEXPORT int_type uflow(){ |
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int_type retval = underflow(); |
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if(retval != traits::eof()){ |
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++ielement; |
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} |
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return retval; |
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} |
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virtual _UCXXEXPORT int_type pbackfail(int_type c = traits::eof()){ |
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//Error possibilities |
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if(ielement == 0){ |
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return traits::eof(); |
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} |
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if(ielement > data.length()){ |
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ielement = data.length(); |
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return traits::eof(); |
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} |
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//eof passed in |
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if(traits::eq_int_type(c,traits::eof())==true){ |
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--ielement; |
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return traits::not_eof(c); |
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} |
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if(traits::eq(traits::to_char_type(c),data[ielement-1]) == true){ |
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--ielement; |
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return c; |
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} |
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if(basic_streambuf::openedFor & ios_base::out){ |
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--ielement; |
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data[ielement] = c; |
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return c; |
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} |
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return traits::eof(); |
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} |
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virtual _UCXXEXPORT int showmanyc(){ |
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return data.length() - ielement; |
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} |
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virtual _UCXXEXPORT streamsize xsgetn(char_type* c, streamsize n){ |
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streamsize i = 0; |
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while(ielement < data.length() && i < n ){ |
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c[i] = data[ielement]; |
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++i; |
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++ielement; |
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} |
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return i; |
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} |
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virtual _UCXXEXPORT int_type overflow (int_type c = traits::eof()){ |
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//Nothing to do |
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if(traits::eq_int_type(c,traits::eof())){ |
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return traits::not_eof(c); |
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} |
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//Actually add character, if possible |
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if(basic_streambuf::openedFor & ios_base::out){ |
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if(oelement >= data.length()){ |
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data.push_back(c); |
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}else{ |
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data[oelement] = c; |
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} |
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++oelement; |
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return c; |
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} |
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//Not possible |
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return traits::eof(); |
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} |
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virtual _UCXXEXPORT basic_streambuf* setbuf(charT*, streamsize){ |
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//This function does nothing |
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return this; |
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} |
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virtual _UCXXEXPORT streamsize xsputn(const char_type* s, streamsize n){ |
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data.replace(oelement, n, s, n); |
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oelement += n; |
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return n; |
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} |
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virtual _UCXXEXPORT pos_type seekoff(off_type off, ios_base::seekdir way, |
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ios_base::openmode which = ios_base::in | ios_base::out) |
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{ |
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//Test for invalid option |
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if( (which & ios_base::in) && (which & ios_base::out) && (way == ios_base::cur)){ |
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return -1; |
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} |
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//Calculate new location |
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size_type newpos = 0; |
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if(way == ios_base::beg){ |
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newpos = off; |
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}else if(way == ios_base::cur){ |
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if(which & ios_base::out){ |
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newpos = data.length() + off; |
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} |
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if(which & ios_base::in){ |
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newpos = ielement + off; |
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} |
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}else{ |
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newpos = data.length() + off; |
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} |
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//Test for error conditions |
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if(newpos > data.length()){ |
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return -1; |
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} |
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//Shuffle pointers |
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if(which & ios_base::in){ |
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ielement = newpos; |
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} |
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if(which & ios_base::out){ |
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data.resize(newpos); |
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if(ielement > data.length()){ |
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ielement = data.length(); |
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} |
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} |
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return newpos; |
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} |
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virtual _UCXXEXPORT pos_type seekpos(pos_type sp, |
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ios_base::openmode which = ios_base::in | ios_base::out) |
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{ |
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return seekoff(sp, ios_base::beg, which); |
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} |
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basic_string data; |
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size_type ielement; |
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size_type oelement; |
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}; |
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template class _UCXXEXPORT basic_istringstream |
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: public basic_istream |
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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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explicit _UCXXEXPORT basic_istringstream(ios_base::openmode m = ios_base::in) |
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: basic_ios(&sb), basic_istream(&sb), sb(m) |
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{ |
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} |
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explicit _UCXXEXPORT basic_istringstream( const basic_string& str, |
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ios_base::openmode which = ios_base::in) |
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: basic_ios(&sb), basic_istream(&sb), sb(str, which) |
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{ |
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} |
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virtual _UCXXEXPORT ~basic_istringstream() { } |
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_UCXXEXPORT basic_stringbuf* rdbuf() const{ |
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return &sb; |
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} |
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_UCXXEXPORT basic_string str() const{ |
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return sb.str(); |
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} |
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_UCXXEXPORT void str(const basic_string& s){ |
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sb.str(s); |
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basic_istream::clear(); |
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} |
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private: |
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basic_stringbuf sb; |
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}; |
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template class _UCXXEXPORT basic_ostringstream |
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: public basic_ostream |
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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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explicit _UCXXEXPORT basic_ostringstream(ios_base::openmode m = ios_base::out) |
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: basic_ios(&sb), basic_ostream(&sb), sb(m) |
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{ |
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} |
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explicit _UCXXEXPORT basic_ostringstream(const basic_string& str, |
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ios_base::openmode which = ios_base::out) |
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: basic_ios(&sb), basic_ostream(&sb), sb(str, which) |
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{ |
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} |
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virtual _UCXXEXPORT ~basic_ostringstream() { } |
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_UCXXEXPORT basic_stringbuf* rdbuf() const{ |
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return &sb; |
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} |
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_UCXXEXPORT basic_string str() const{ |
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return sb.str(); |
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} |
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_UCXXEXPORT void str(const basic_string& s){ |
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sb.str(s); |
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basic_ostream::clear(); |
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} |
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private: |
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basic_stringbuf sb; |
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}; |
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template class _UCXXEXPORT basic_stringstream |
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: public basic_iostream |
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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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explicit _UCXXEXPORT basic_stringstream(ios_base::openmode which = ios_base::out|ios_base::in) |
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: basic_ios(&sb), basic_iostream(&sb), sb(which) |
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{ |
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} |
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explicit _UCXXEXPORT basic_stringstream(const basic_string& str, |
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ios_base::openmode which = ios_base::out|ios_base::in) |
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: basic_ios(&sb), basic_iostream(&sb), sb(str, which) |
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{ |
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} |
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virtual _UCXXEXPORT ~basic_stringstream(){ } |
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_UCXXEXPORT basic_stringbuf* rdbuf(){ |
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return &sb; |
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} |
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_UCXXEXPORT basic_string str() const{ |
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return sb.str(); |
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} |
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_UCXXEXPORT void str(const basic_string& s){ |
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sb.str(s); |
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basic_iostream::clear(); |
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} |
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private: |
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basic_stringbuf sb; |
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}; |
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#ifdef __UCLIBCXX_EXPAND_SSTREAM_CHAR__ |
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#ifndef __UCLIBCXX_COMPILE_SSTREAM__ |
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#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
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template <> _UCXXEXPORT basic_stringbuf, allocator >:: |
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basic_stringbuf(ios_base::openmode which); |
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template <> _UCXXEXPORT basic_stringbuf, allocator >::~basic_stringbuf(); |
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#endif // __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
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template <> _UCXXEXPORT basic_string, allocator > |
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basic_stringbuf, allocator >::str() const; |
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template <> _UCXXEXPORT basic_stringbuf, allocator >::int_type |
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basic_stringbuf, allocator >:: |
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pbackfail(basic_stringbuf, allocator >::int_type c); |
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template <> _UCXXEXPORT basic_stringbuf, allocator >::pos_type |
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basic_stringbuf, allocator >:: |
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seekoff (basic_stringbuf, allocator >::off_type off, |
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ios_base::seekdir way, |
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ios_base::openmode which |
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); |
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template <> _UCXXEXPORT basic_stringbuf, allocator >::int_type |
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basic_stringbuf, allocator >:: |
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overflow (basic_stringbuf, allocator >::int_type c); |
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template <> _UCXXEXPORT basic_stringbuf, allocator >::int_type |
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basic_stringbuf, allocator >::underflow (); |
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template <> _UCXXEXPORT streamsize basic_stringbuf, allocator >:: |
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xsputn(const char* s, streamsize n); |
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#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
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template <> _UCXXEXPORT basic_stringstream, allocator >:: |
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basic_stringstream(ios_base::openmode which); |
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template <> _UCXXEXPORT basic_stringstream, allocator >::~basic_stringstream(); |
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template <> _UCXXEXPORT basic_istringstream, allocator >::~basic_istringstream(); |
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template <> _UCXXEXPORT basic_ostringstream, allocator >::~basic_ostringstream(); |
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#endif //__UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__ |
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#endif |
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#endif |
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#pragma GCC visibility pop |
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} |
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#endif |