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/* Copyright (C) 2004 Garrett A. Kajmowicz
This file is part of the uClibc++ Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <basic_definitions>
#include <iosfwd>
#include <cstddef>
#include <char_traits>
#include <iterator_base>
#ifndef __STD_HEADER_ITERATOR
#define __STD_HEADER_ITERATOR 1
#pragma GCC visibility push(default)
namespace std{
// subclause _lib.stream.iterators_, stream iterators:
template <class T, class charT = char, class traits = char_traits<charT>, class Distance = ptrdiff_t> class istream_iterator;
template <class T, class charT, class traits, class Distance> bool
operator==(const istream_iterator<T,charT,traits,Distance>& x, const istream_iterator<T,charT,traits,Distance>& y);
template <class T, class charT, class traits, class Distance> bool
operator!=(const istream_iterator<T,charT,traits,Distance>& x, const istream_iterator<T,charT,traits,Distance>& y);
template <class T, class charT = char, class traits = char_traits<charT> > class ostream_iterator;
template<class charT, class traits = char_traits<charT> > class istreambuf_iterator;
template <class charT, class traits> bool
operator==(const istreambuf_iterator<charT,traits>& a, const istreambuf_iterator<charT,traits>& b);
template <class charT, class traits> bool
operator!=(const istreambuf_iterator<charT,traits>& a, const istreambuf_iterator<charT,traits>& b);
template <class charT, class traits = char_traits<charT> > class ostreambuf_iterator;
template < class T, class charT, class traits, class Distance > class _UCXXEXPORT istream_iterator
: public iterator<input_iterator_tag,T,Distance,const T*, const T&>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef basic_istream<charT,traits> istream_type;
istream_iterator() : in_stream(0), value(0) {}
istream_iterator(istream_type& s) : in_stream(&s), value() {
*in_stream >> value;
}
istream_iterator(const istream_iterator<T,charT,traits,Distance>& x)
: in_stream(x.in_stream), value(x.value)
{ }
~istream_iterator() { }
const T& operator*() const{
return value;
}
const T* operator->() const{
return &value;
}
istream_iterator<T,charT,traits,Distance>& operator++() {
*in_stream >> value;
return *this;
}
istream_iterator<T,charT,traits,Distance> operator++(int){
istream_iterator<T,charT,traits,Distance> tmp = *this;
*in_stream >> value;
return (tmp);
}
bool m_equal(const istream_iterator<T,charT,traits,Distance>& x) const{
return (in_stream == x.in_stream);
}
private:
basic_istream<charT,traits>* in_stream;
T value;
};
template <class T, class charT, class traits, class Distance> _UCXXEXPORT
bool operator==(const istream_iterator<T,charT,traits,Distance>& x,
const istream_iterator<T,charT,traits,Distance>& y)
{
return x.m_equal(y);
}
template <class T, class charT, class traits, class Distance> _UCXXEXPORT
bool operator!=(const istream_iterator<T,charT,traits,Distance>& x,
const istream_iterator<T,charT,traits,Distance>& y)
{
return !(x == y);
}
template <class T, class charT, class traits> class _UCXXEXPORT ostream_iterator
: public iterator<output_iterator_tag,void,void,void,void>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef basic_ostream<charT,traits> ostream_type;
ostream_iterator(ostream_type& s) : out_stream(&s), delim(0) { }
ostream_iterator(ostream_type& s, const charT* delimiter) : out_stream(&s), delim(delimiter) { }
ostream_iterator(const ostream_iterator<T,charT,traits>& x) : out_stream(x.out_stream), delim(x.delim) { }
~ostream_iterator() { }
ostream_iterator<T,charT,traits>& operator=(const T& value){
*out_stream << value;
if(delim != 0){
*out_stream << delim;
}
return (*this);
}
ostream_iterator<T,charT,traits>& operator*(){ return *this; }
ostream_iterator<T,charT,traits>& operator++() { return *this; }
ostream_iterator<T,charT,traits> operator++(int) { return *this; }
private:
basic_ostream<charT,traits>* out_stream;
const char* delim;
};
template<class charT, class traits > class _UCXXEXPORT istreambuf_iterator :
public iterator<input_iterator_tag, charT, typename traits::off_type, charT*, charT&>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits::int_type int_type;
typedef basic_streambuf<charT,traits> streambuf_type;
typedef basic_istream<charT,traits> istream_type;
class _UCXXEXPORT proxy{
charT val;
basic_streambuf<charT, traits> * buf;
proxy(charT v, basic_streambuf<charT, traits> * b) : val(v), buf(b) { }
public:
charT operator*() { return val; }
};
istreambuf_iterator() throw() : sbuf(0) { }
istreambuf_iterator(istream_type& s) throw() : sbuf(s.rdbuf()) { }
istreambuf_iterator(streambuf_type* s) throw() : sbuf(s) { }
istreambuf_iterator(const proxy& p) throw() : sbuf(&p.buf) { }
charT operator*() const{
return sbuf->sgetc();
}
istreambuf_iterator<charT,traits>& operator++(){
sbuf->sbumpc();
return *this;
}
proxy operator++(int){
istreambuf_iterator<charT,traits> tmp = *this;
sbuf->sbumpc();
return(tmp);
}
bool equal(const istreambuf_iterator& b) const{
return sbuf == b.sbuf || is_eof() && b.is_eof();
}
private:
streambuf_type* sbuf;
inline bool is_eof() const{
return sbuf == 0 || sbuf->sgetc() == traits_type::eof();
}
};
template <class charT, class traits> _UCXXEXPORT bool
operator==(const istreambuf_iterator<charT,traits>& a,
const istreambuf_iterator<charT,traits>& b)
{
return a.equal(b);
}
template <class charT, class traits> bool _UCXXEXPORT
operator!=(const istreambuf_iterator<charT,traits>& a,
const istreambuf_iterator<charT,traits>& b)
{
return !a.equal(b);
}
template <class charT, class traits> class _UCXXEXPORT ostreambuf_iterator
: iterator<output_iterator_tag,void,void,void,void>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef basic_streambuf<charT,traits> streambuf_type;
typedef basic_ostream<charT,traits> ostream_type;
public:
ostreambuf_iterator(ostream_type& s) throw() : sbuf(s.rdbuf()), f(false) { }
ostreambuf_iterator(streambuf_type* s) throw() : sbuf(s), f(false) { }
ostreambuf_iterator& operator=(charT c){
if(failed() == false){
if(sbuf->sputc(c) == traits::eof()){
f = true;
}
}
return *this;
}
ostreambuf_iterator& operator*(){
return *this;
}
ostreambuf_iterator& operator++() { return *this; }
ostreambuf_iterator operator++(int) { return *this; }
bool failed() const throw(){
return f;
}
private:
streambuf_type* sbuf;
bool f;
};
}
#pragma GCC visibility pop
#endif
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