206 lines
7.9 KiB
C++
Executable file
206 lines
7.9 KiB
C++
Executable file
// boost/filesystem/fstream.hpp ------------------------------------------------------//
|
|
|
|
// Copyright Beman Dawes 2002
|
|
// Copyright Andrey Semashev 2021
|
|
|
|
// 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_FILESYSTEM_FSTREAM_HPP
|
|
#define BOOST_FILESYSTEM_FSTREAM_HPP
|
|
|
|
#include <boost/filesystem/config.hpp>
|
|
#include <boost/filesystem/path.hpp>
|
|
#include <iosfwd>
|
|
#include <fstream>
|
|
|
|
#include <boost/filesystem/detail/header.hpp> // must be the last #include
|
|
|
|
#if defined(BOOST_WINDOWS_API)
|
|
// 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(_CPPLIB_VER) && _CPPLIB_VER >= 405 && !defined(_STLPORT_VERSION)) || \
|
|
(defined(_LIBCPP_VERSION) && _LIBCPP_VERSION >= 7000 && defined(_LIBCPP_HAS_OPEN_WITH_WCHAR))
|
|
// Use wide characters directly
|
|
// Note: We don't use C++17 std::filesystem::path as a means to pass wide paths
|
|
// to file streams because of various problems:
|
|
// - std::filesystem is available in gcc 8 but it is broken there (fails to compile path definition
|
|
// on Windows). Compilation errors seem to be fixed since gcc 9.
|
|
// - In gcc 10.2 and clang 8.0.1 on Cygwin64, the path attempts to convert the wide string to narrow
|
|
// and fails in runtime. This may be system locale dependent, and performing character code conversion
|
|
// is against the purpose of using std::filesystem::path anyway.
|
|
// - Other std::filesystem implementations were not tested, so it is not known if they actually work
|
|
// with wide paths.
|
|
#define BOOST_FILESYSTEM_C_STR(p) p.c_str()
|
|
#else
|
|
// Use narrow characters, since wide not available
|
|
#define BOOST_FILESYSTEM_C_STR(p) p.string().c_str()
|
|
#endif
|
|
#endif // defined(BOOST_WINDOWS_API)
|
|
|
|
#if !defined(BOOST_FILESYSTEM_C_STR)
|
|
#define BOOST_FILESYSTEM_C_STR(p) p.c_str()
|
|
#endif
|
|
|
|
#if defined(BOOST_MSVC)
|
|
#pragma warning(push)
|
|
// 'boost::filesystem::basic_fstream<charT>' : inherits 'std::basic_istream<_Elem,_Traits>::std::basic_istream<_Elem,_Traits>::_Add_vtordisp1' via dominance
|
|
#pragma warning(disable : 4250)
|
|
#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 >
|
|
{
|
|
public:
|
|
BOOST_DEFAULTED_FUNCTION(basic_filebuf(), {})
|
|
BOOST_DELETED_FUNCTION(basic_filebuf(basic_filebuf const&))
|
|
BOOST_DELETED_FUNCTION(basic_filebuf const& operator=(basic_filebuf const&))
|
|
|
|
public:
|
|
basic_filebuf< charT, traits >* open(path const& p, std::ios_base::openmode mode)
|
|
{
|
|
return std::basic_filebuf< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), mode) ? this : 0;
|
|
}
|
|
};
|
|
|
|
//--------------------------------------------------------------------------------------//
|
|
// basic_ifstream //
|
|
//--------------------------------------------------------------------------------------//
|
|
|
|
template< class charT, class traits = std::char_traits< charT > >
|
|
class basic_ifstream :
|
|
public std::basic_ifstream< charT, traits >
|
|
{
|
|
public:
|
|
BOOST_DEFAULTED_FUNCTION(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(path const& p) :
|
|
std::basic_ifstream< charT, traits >(BOOST_FILESYSTEM_C_STR(p), std::ios_base::in) {}
|
|
|
|
basic_ifstream(path const& p, std::ios_base::openmode mode) :
|
|
std::basic_ifstream< charT, traits >(BOOST_FILESYSTEM_C_STR(p), mode) {}
|
|
|
|
BOOST_DELETED_FUNCTION(basic_ifstream(basic_ifstream const&))
|
|
BOOST_DELETED_FUNCTION(basic_ifstream const& operator=(basic_ifstream const&))
|
|
|
|
public:
|
|
void open(path const& p)
|
|
{
|
|
std::basic_ifstream< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), std::ios_base::in);
|
|
}
|
|
|
|
void open(path const& p, std::ios_base::openmode mode)
|
|
{
|
|
std::basic_ifstream< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), mode);
|
|
}
|
|
};
|
|
|
|
//--------------------------------------------------------------------------------------//
|
|
// basic_ofstream //
|
|
//--------------------------------------------------------------------------------------//
|
|
|
|
template< class charT, class traits = std::char_traits< charT > >
|
|
class basic_ofstream :
|
|
public std::basic_ofstream< charT, traits >
|
|
{
|
|
public:
|
|
BOOST_DEFAULTED_FUNCTION(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(path const& p) :
|
|
std::basic_ofstream< charT, traits >(BOOST_FILESYSTEM_C_STR(p), std::ios_base::out) {}
|
|
|
|
basic_ofstream(path const& p, std::ios_base::openmode mode) :
|
|
std::basic_ofstream< charT, traits >(BOOST_FILESYSTEM_C_STR(p), mode) {}
|
|
|
|
BOOST_DELETED_FUNCTION(basic_ofstream(basic_ofstream const&))
|
|
BOOST_DELETED_FUNCTION(basic_ofstream const& operator=(basic_ofstream const&))
|
|
|
|
public:
|
|
void open(path const& p)
|
|
{
|
|
std::basic_ofstream< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), std::ios_base::out);
|
|
}
|
|
|
|
void open(path const& p, std::ios_base::openmode mode)
|
|
{
|
|
std::basic_ofstream< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), mode);
|
|
}
|
|
};
|
|
|
|
//--------------------------------------------------------------------------------------//
|
|
// basic_fstream //
|
|
//--------------------------------------------------------------------------------------//
|
|
|
|
template< class charT, class traits = std::char_traits< charT > >
|
|
class basic_fstream :
|
|
public std::basic_fstream< charT, traits >
|
|
{
|
|
public:
|
|
BOOST_DEFAULTED_FUNCTION(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(path const& p) :
|
|
std::basic_fstream< charT, traits >(BOOST_FILESYSTEM_C_STR(p), std::ios_base::in | std::ios_base::out) {}
|
|
|
|
basic_fstream(path const& p, std::ios_base::openmode mode) :
|
|
std::basic_fstream< charT, traits >(BOOST_FILESYSTEM_C_STR(p), mode) {}
|
|
|
|
BOOST_DELETED_FUNCTION(basic_fstream(basic_fstream const&))
|
|
BOOST_DELETED_FUNCTION(basic_fstream const& operator=(basic_fstream const&))
|
|
|
|
public:
|
|
void open(path const& p)
|
|
{
|
|
std::basic_fstream< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), std::ios_base::in | std::ios_base::out);
|
|
}
|
|
|
|
void open(path const& p, std::ios_base::openmode mode)
|
|
{
|
|
std::basic_fstream< charT, traits >::open(BOOST_FILESYSTEM_C_STR(p), mode);
|
|
}
|
|
};
|
|
|
|
//--------------------------------------------------------------------------------------//
|
|
// 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
|
|
|
|
#if defined(BOOST_MSVC)
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#include <boost/filesystem/detail/footer.hpp>
|
|
|
|
#endif // BOOST_FILESYSTEM_FSTREAM_HPP
|