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// Copyright (c) 2012 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_NOWIDE_FSTREAM_INCLUDED_HPP
#define BOOST_NOWIDE_FSTREAM_INCLUDED_HPP
#include <iosfwd>
#include <boost/config.hpp>
#include <boost/nowide/convert.hpp>
#include <boost/scoped_ptr.hpp>
#include <fstream>
#include <memory>
#include <boost/nowide/filebuf.hpp>
namespace boost {
///
/// \brief This namespace includes implementation of the standard library functios
/// such that they accept UTF-8 strings on Windows. On other platforms it is just an alias
/// of std namespace (i.e. not on Windows)
///
namespace nowide {
#if !defined(BOOST_WINDOWS) && !defined(BOOST_NOWIDE_FSTREAM_TESTS) && !defined(BOOST_NOWIDE_DOXYGEN)
using std::basic_ifstream;
using std::basic_ofstream;
using std::basic_fstream;
using std::ifstream;
using std::ofstream;
using std::fstream;
#else
///
/// \brief Same as std::basic_ifstream<char> but accepts UTF-8 strings under Windows
///
template<typename CharType,typename Traits = std::char_traits<CharType> >
class basic_ifstream : public std::basic_istream<CharType,Traits>
{
public:
typedef basic_filebuf<CharType,Traits> internal_buffer_type;
typedef std::basic_istream<CharType,Traits> internal_stream_type;
basic_ifstream() :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
}
explicit basic_ifstream(char const *file_name,std::ios_base::openmode mode = std::ios_base::in) :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
open(file_name,mode);
}
explicit basic_ifstream(std::string const &file_name,std::ios_base::openmode mode = std::ios_base::in) :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
open(file_name,mode);
}
void open(std::string const &file_name,std::ios_base::openmode mode = std::ios_base::in)
{
open(file_name.c_str(),mode);
}
void open(char const *file_name,std::ios_base::openmode mode = std::ios_base::in)
{
if(!buf_->open(file_name,mode | std::ios_base::in)) {
this->setstate(std::ios_base::failbit);
}
else {
this->clear();
}
}
bool is_open()
{
return buf_->is_open();
}
bool is_open() const
{
return buf_->is_open();
}
void close()
{
if(!buf_->close())
this->setstate(std::ios_base::failbit);
else
this->clear();
}
internal_buffer_type *rdbuf() const
{
return buf_.get();
}
~basic_ifstream()
{
buf_->close();
}
private:
boost::scoped_ptr<internal_buffer_type> buf_;
};
///
/// \brief Same as std::basic_ofstream<char> but accepts UTF-8 strings under Windows
///
template<typename CharType,typename Traits = std::char_traits<CharType> >
class basic_ofstream : public std::basic_ostream<CharType,Traits>
{
public:
typedef basic_filebuf<CharType,Traits> internal_buffer_type;
typedef std::basic_ostream<CharType,Traits> internal_stream_type;
basic_ofstream() :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
}
explicit basic_ofstream(char const *file_name,std::ios_base::openmode mode = std::ios_base::out) :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
open(file_name,mode);
}
explicit basic_ofstream(std::string const &file_name,std::ios_base::openmode mode = std::ios_base::out) :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
open(file_name,mode);
}
void open(std::string const &file_name,std::ios_base::openmode mode = std::ios_base::out)
{
open(file_name.c_str(),mode);
}
void open(char const *file_name,std::ios_base::openmode mode = std::ios_base::out)
{
if(!buf_->open(file_name,mode | std::ios_base::out)) {
this->setstate(std::ios_base::failbit);
}
else {
this->clear();
}
}
bool is_open()
{
return buf_->is_open();
}
bool is_open() const
{
return buf_->is_open();
}
void close()
{
if(!buf_->close())
this->setstate(std::ios_base::failbit);
else
this->clear();
}
internal_buffer_type *rdbuf() const
{
return buf_.get();
}
~basic_ofstream()
{
buf_->close();
}
private:
boost::scoped_ptr<internal_buffer_type> buf_;
};
///
/// \brief Same as std::basic_fstream<char> but accepts UTF-8 strings under Windows
///
template<typename CharType,typename Traits = std::char_traits<CharType> >
class basic_fstream : public std::basic_iostream<CharType,Traits>
{
public:
typedef basic_filebuf<CharType,Traits> internal_buffer_type;
typedef std::basic_iostream<CharType,Traits> internal_stream_type;
basic_fstream() :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
}
explicit basic_fstream(char const *file_name,std::ios_base::openmode mode = std::ios_base::out | std::ios_base::in) :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
open(file_name,mode);
}
explicit basic_fstream(std::string const &file_name,std::ios_base::openmode mode = std::ios_base::out | std::ios_base::in) :
internal_stream_type(0)
{
buf_.reset(new internal_buffer_type());
std::ios::rdbuf(buf_.get());
open(file_name,mode);
}
void open(std::string const &file_name,std::ios_base::openmode mode = std::ios_base::out | std::ios_base::out)
{
open(file_name.c_str(),mode);
}
void open(char const *file_name,std::ios_base::openmode mode = std::ios_base::out | std::ios_base::out)
{
if(!buf_->open(file_name,mode)) {
this->setstate(std::ios_base::failbit);
}
else {
this->clear();
}
}
bool is_open()
{
return buf_->is_open();
}
bool is_open() const
{
return buf_->is_open();
}
void close()
{
if(!buf_->close())
this->setstate(std::ios_base::failbit);
else
this->clear();
}
internal_buffer_type *rdbuf() const
{
return buf_.get();
}
~basic_fstream()
{
buf_->close();
}
private:
boost::scoped_ptr<internal_buffer_type> buf_;
};
///
/// \brief Same as std::filebuf but accepts UTF-8 strings under Windows
///
typedef basic_filebuf<char> filebuf;
///
/// Same as std::ifstream but accepts UTF-8 strings under Windows
///
typedef basic_ifstream<char> ifstream;
///
/// Same as std::ofstream but accepts UTF-8 strings under Windows
///
typedef basic_ofstream<char> ofstream;
///
/// Same as std::fstream but accepts UTF-8 strings under Windows
///
typedef basic_fstream<char> fstream;
#endif
} // nowide
} // namespace boost
#endif
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