ClickHouse/contrib/libboost/boost_1_62_0/boost/filesystem/fstream.hpp
2016-12-12 07:17:16 +03:00

183 lines
6.8 KiB
C++

// boost/filesystem/fstream.hpp ------------------------------------------------------//
// Copyright Beman Dawes 2002
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// Library home page: http://www.boost.org/libs/filesystem
//--------------------------------------------------------------------------------------//
#ifndef BOOST_FILESYSTEM3_FSTREAM_HPP
#define BOOST_FILESYSTEM3_FSTREAM_HPP
#include <boost/config.hpp>
# if defined( BOOST_NO_STD_WSTRING )
# error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
# endif
#include <boost/filesystem/path.hpp>
#include <iosfwd>
#include <fstream>
#include <boost/config/abi_prefix.hpp> // must be the last #include
// on Windows, except for standard libaries known to have wchar_t overloads for
// file stream I/O, use path::string() to get a narrow character c_str()
#if defined(BOOST_WINDOWS_API) \
&& (!defined(_CPPLIB_VER) || _CPPLIB_VER < 405 || defined(_STLPORT_VERSION))
// !Dinkumware || early Dinkumware || STLPort masquerading as Dinkumware
# define BOOST_FILESYSTEM_C_STR string().c_str() // use narrow, since wide not available
#else // use the native c_str, which will be narrow on POSIX, wide on Windows
# define BOOST_FILESYSTEM_C_STR c_str()
#endif
namespace boost
{
namespace filesystem
{
//--------------------------------------------------------------------------------------//
// basic_filebuf //
//--------------------------------------------------------------------------------------//
template < class charT, class traits = std::char_traits<charT> >
class basic_filebuf : public std::basic_filebuf<charT,traits>
{
private: // disallow copying
basic_filebuf(const basic_filebuf&);
const basic_filebuf& operator=(const basic_filebuf&);
public:
basic_filebuf() {}
virtual ~basic_filebuf() {}
basic_filebuf<charT,traits>*
open(const path& p, std::ios_base::openmode mode)
{
return std::basic_filebuf<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode)
? this : 0;
}
};
//--------------------------------------------------------------------------------------//
// basic_ifstream //
//--------------------------------------------------------------------------------------//
template < class charT, class traits = std::char_traits<charT> >
class basic_ifstream : public std::basic_ifstream<charT,traits>
{
private: // disallow copying
basic_ifstream(const basic_ifstream&);
const basic_ifstream& operator=(const basic_ifstream&);
public:
basic_ifstream() {}
// use two signatures, rather than one signature with default second
// argument, to workaround VC++ 7.1 bug (ID VSWhidbey 38416)
explicit basic_ifstream(const path& p)
: std::basic_ifstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, std::ios_base::in) {}
basic_ifstream(const path& p, std::ios_base::openmode mode)
: std::basic_ifstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, mode) {}
void open(const path& p)
{ std::basic_ifstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, std::ios_base::in); }
void open(const path& p, std::ios_base::openmode mode)
{ std::basic_ifstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode); }
virtual ~basic_ifstream() {}
};
//--------------------------------------------------------------------------------------//
// basic_ofstream //
//--------------------------------------------------------------------------------------//
template < class charT, class traits = std::char_traits<charT> >
class basic_ofstream : public std::basic_ofstream<charT,traits>
{
private: // disallow copying
basic_ofstream(const basic_ofstream&);
const basic_ofstream& operator=(const basic_ofstream&);
public:
basic_ofstream() {}
// use two signatures, rather than one signature with default second
// argument, to workaround VC++ 7.1 bug (ID VSWhidbey 38416)
explicit basic_ofstream(const path& p)
: std::basic_ofstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, std::ios_base::out) {}
basic_ofstream(const path& p, std::ios_base::openmode mode)
: std::basic_ofstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, mode) {}
void open(const path& p)
{ std::basic_ofstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, std::ios_base::out); }
void open(const path& p, std::ios_base::openmode mode)
{ std::basic_ofstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode); }
virtual ~basic_ofstream() {}
};
//--------------------------------------------------------------------------------------//
// basic_fstream //
//--------------------------------------------------------------------------------------//
template < class charT, class traits = std::char_traits<charT> >
class basic_fstream : public std::basic_fstream<charT,traits>
{
private: // disallow copying
basic_fstream(const basic_fstream&);
const basic_fstream & operator=(const basic_fstream&);
public:
basic_fstream() {}
// use two signatures, rather than one signature with default second
// argument, to workaround VC++ 7.1 bug (ID VSWhidbey 38416)
explicit basic_fstream(const path& p)
: std::basic_fstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR,
std::ios_base::in | std::ios_base::out) {}
basic_fstream(const path& p, std::ios_base::openmode mode)
: std::basic_fstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, mode) {}
void open(const path& p)
{ std::basic_fstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR,
std::ios_base::in | std::ios_base::out); }
void open(const path& p, std::ios_base::openmode mode)
{ std::basic_fstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode); }
virtual ~basic_fstream() {}
};
//--------------------------------------------------------------------------------------//
// typedefs //
//--------------------------------------------------------------------------------------//
typedef basic_filebuf<char> filebuf;
typedef basic_ifstream<char> ifstream;
typedef basic_ofstream<char> ofstream;
typedef basic_fstream<char> fstream;
typedef basic_filebuf<wchar_t> wfilebuf;
typedef basic_ifstream<wchar_t> wifstream;
typedef basic_ofstream<wchar_t> wofstream;
typedef basic_fstream<wchar_t> wfstream;
} // namespace filesystem
} // namespace boost
#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
#endif // BOOST_FILESYSTEM3_FSTREAM_HPP