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lyx_mirror/boost/boost/filesystem/fstream.hpp
Lars Gullik Bjønnes d64a07a784 Update in-tree boost to latest from boost 1.34 cvs. 
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@14895 a592a061-630c-0410-9148-cb99ea01b6c8
2006-09-05 07:18:36 +00:00

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// boost/filesystem/fstream.hpp --------------------------------------------//
// Copyright Beman Dawes 2002.
// Use, modification, and distribution is subject to 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)
// See library home page at http://www.boost.org/libs/filesystem
//----------------------------------------------------------------------------//
#ifndef BOOST_FILESYSTEM_FSTREAM_HPP
#define BOOST_FILESYSTEM_FSTREAM_HPP
#include <boost/filesystem/operations.hpp> // for 8.3 hack (see below)
#include <boost/utility/enable_if.hpp>
#include <boost/detail/workaround.hpp>
#include <iosfwd>
#include <fstream>
#include <boost/config/abi_prefix.hpp> // must be the last #include
// NOTE: fstream.hpp for Boost 1.32.0 and earlier supplied workarounds for
// various compiler problems. They have been removed to ease development of the
// basic i18n functionality. Once the new interface is stable, the workarounds
// will be reinstated for any compilers that otherwise can support the rest of
// the library after internationalization.
namespace boost
{
namespace filesystem
{
namespace detail
{
# if defined(BOOST_WINDOWS_API) && !defined(BOOST_FILESYSTEM_NARROW_ONLY)
# if !defined(BOOST_DINKUMWARE_STDLIB) || BOOST_DINKUMWARE_STDLIB < 405
// The 8.3 hack:
// C++98 does not supply a wchar_t open, so try to get an equivalent
// narrow char name based on the short, so-called 8.3, name.
// Not needed for Dinkumware 405 and later as they do supply wchar_t open.
BOOST_FILESYSTEM_DECL bool create_file_api( const std::wstring & ph,
std::ios_base::openmode mode ); // true if succeeds
BOOST_FILESYSTEM_DECL std::string narrow_path_api(
const std::wstring & ph ); // return is empty if fails
inline std::string path_proxy( const std::wstring & file_ph,
std::ios_base::openmode mode )
// Return a non-existant path if cannot supply narrow short path.
// An empty path doesn't work because some Dinkumware versions
// assert the path is non-empty.
{
std::string narrow_ph;
bool created_file( false );
if ( !exists( file_ph )
&& (mode & std::ios_base::out) != 0
&& create_file_api( file_ph, mode ) )
{
created_file = true;
}
narrow_ph = narrow_path_api( file_ph );
if ( narrow_ph.empty() )
{
if ( created_file ) remove_api( file_ph );
narrow_ph = "\x01";
}
return narrow_ph;
}
# else
// Dinkumware 405 and later does supply wchar_t functions
inline const std::wstring & path_proxy( const std::wstring & file_ph,
std::ios_base::openmode )
{ return file_ph; }
# endif
# endif
inline const std::string & path_proxy( const std::string & file_ph,
std::ios_base::openmode )
{ return file_ph; }
} // namespace detail
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() {}
# ifndef BOOST_FILESYSTEM_NARROW_ONLY
template<class Path>
typename boost::enable_if<is_basic_path<Path>,
basic_filebuf<charT,traits> *>::type
open( const Path & file_ph, std::ios_base::openmode mode );
basic_filebuf<charT,traits> *
open( const wpath & file_ph, std::ios_base::openmode mode );
# endif
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
basic_filebuf<charT,traits> *
open( const path & file_ph, std::ios_base::openmode mode );
# endif
};
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)
# ifndef BOOST_FILESYSTEM_NARROW_ONLY
template<class Path>
explicit basic_ifstream( const Path & file_ph,
typename boost::enable_if<is_basic_path<Path> >::type* dummy = 0 );
template<class Path>
basic_ifstream( const Path & file_ph, std::ios_base::openmode mode,
typename boost::enable_if<is_basic_path<Path> >::type* dummy = 0 );
template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
open( const Path & file_ph );
template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
open( const Path & file_ph, std::ios_base::openmode mode );
explicit basic_ifstream( const wpath & file_ph );
basic_ifstream( const wpath & file_ph, std::ios_base::openmode mode );
void open( const wpath & file_ph );
void open( const wpath & file_ph, std::ios_base::openmode mode );
# endif
explicit basic_ifstream( const path & file_ph );
basic_ifstream( const path & file_ph, std::ios_base::openmode mode );
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
void open( const path & file_ph );
void open( const path & file_ph, std::ios_base::openmode mode );
# endif
virtual ~basic_ifstream() {}
};
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)
# ifndef BOOST_FILESYSTEM_NARROW_ONLY
template<class Path>
explicit basic_ofstream( const Path & file_ph,
typename boost::enable_if<is_basic_path<Path> >::type* dummy = 0 );
explicit basic_ofstream( const wpath & file_ph );
template<class Path>
basic_ofstream( const Path & file_ph, std::ios_base::openmode mode,
typename boost::enable_if<is_basic_path<Path> >::type* dummy = 0 );
basic_ofstream( const wpath & file_ph, std::ios_base::openmode mode );
template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
open( const Path & file_ph );
void open( const wpath & file_ph );
template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
open( const Path & file_ph, std::ios_base::openmode mode );
void open( const wpath & file_ph, std::ios_base::openmode mode );
# endif
explicit basic_ofstream( const path & file_ph );
basic_ofstream( const path & file_ph, std::ios_base::openmode mode );
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
void open( const path & file_ph );
void open( const path & file_ph, std::ios_base::openmode mode );
# endif
virtual ~basic_ofstream() {}
};
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)
# ifndef BOOST_FILESYSTEM_NARROW_ONLY
template<class Path>
explicit basic_fstream( const Path & file_ph,
typename boost::enable_if<is_basic_path<Path> >::type* dummy = 0 );
explicit basic_fstream( const wpath & file_ph );
template<class Path>
basic_fstream( const Path & file_ph, std::ios_base::openmode mode,
typename boost::enable_if<is_basic_path<Path> >::type* dummy = 0 );
basic_fstream( const wpath & file_ph, std::ios_base::openmode mode );
template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
open( const Path & file_ph );
void open( const wpath & file_ph );
template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
open( const Path & file_ph, std::ios_base::openmode mode );
void open( const wpath & file_ph, std::ios_base::openmode mode );
# endif
explicit basic_fstream( const path & file_ph );
basic_fstream( const path & file_ph, std::ios_base::openmode mode );
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
void open( const path & file_ph );
void open( const path & file_ph, std::ios_base::openmode mode );
# endif
virtual ~basic_fstream() {}
};
typedef basic_filebuf<char> filebuf;
typedef basic_ifstream<char> ifstream;
typedef basic_ofstream<char> ofstream;
typedef basic_fstream<char> fstream;
# ifndef BOOST_FILESYSTEM_NARROW_ONLY
typedef basic_filebuf<wchar_t> wfilebuf;
typedef basic_ifstream<wchar_t> wifstream;
typedef basic_fstream<wchar_t> wfstream;
typedef basic_ofstream<wchar_t> wofstream;
# endif
# ifndef BOOST_FILESYSTEM_NARROW_ONLY
// basic_filebuf definitions -----------------------------------------------//
template <class charT, class traits>
template<class Path>
typename boost::enable_if<is_basic_path<Path>,
basic_filebuf<charT,traits> *>::type
basic_filebuf<charT,traits>::open( const Path & file_ph,
std::ios_base::openmode mode )
{
return (std::basic_filebuf<charT,traits>::open( detail::path_proxy(
file_ph.external_file_string(), mode ).c_str(), mode )
== 0) ? 0 : this;
}
template <class charT, class traits>
basic_filebuf<charT,traits> *
basic_filebuf<charT, traits>::open( const wpath & file_ph,
std::ios_base::openmode mode )
{
return this->BOOST_NESTED_TEMPLATE open<wpath>( file_ph, mode );
}
// basic_ifstream definitions ----------------------------------------------//
template <class charT, class traits> template<class Path>
basic_ifstream<charT,traits>::basic_ifstream(const Path & file_ph,
typename boost::enable_if<is_basic_path<Path> >::type* )
: std::basic_ifstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in ).c_str(), std::ios_base::in ) {}
template <class charT, class traits>
basic_ifstream<charT,traits>::basic_ifstream( const wpath & file_ph )
: std::basic_ifstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in ).c_str(), std::ios_base::in ) {}
template <class charT, class traits> template<class Path>
basic_ifstream<charT,traits>::basic_ifstream( const Path & file_ph,
std::ios_base::openmode mode,
typename boost::enable_if<is_basic_path<Path> >::type* )
: std::basic_ifstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in ) {}
template <class charT, class traits>
basic_ifstream<charT,traits>::basic_ifstream( const wpath & file_ph,
std::ios_base::openmode mode )
: std::basic_ifstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in ) {}
template <class charT, class traits> template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
basic_ifstream<charT,traits>::open( const Path & file_ph )
{
std::basic_ifstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in ).c_str(), std::ios_base::in );
}
template <class charT, class traits>
void basic_ifstream<charT,traits>::open( const wpath & file_ph )
{
std::basic_ifstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in ).c_str(), std::ios_base::in );
}
template <class charT, class traits> template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
basic_ifstream<charT,traits>::open( const Path & file_ph,
std::ios_base::openmode mode )
{
std::basic_ifstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in );
}
template <class charT, class traits>
void basic_ifstream<charT,traits>::open( const wpath & file_ph,
std::ios_base::openmode mode )
{
std::basic_ifstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in );
}
// basic_ofstream definitions ----------------------------------------------//
template <class charT, class traits> template<class Path>
basic_ofstream<charT,traits>::basic_ofstream(const Path & file_ph,
typename boost::enable_if<is_basic_path<Path> >::type* )
: std::basic_ofstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::out ).c_str(), std::ios_base::out ) {}
template <class charT, class traits>
basic_ofstream<charT,traits>::basic_ofstream( const wpath & file_ph )
: std::basic_ofstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::out ).c_str(), std::ios_base::out ) {}
template <class charT, class traits> template<class Path>
basic_ofstream<charT,traits>::basic_ofstream( const Path & file_ph,
std::ios_base::openmode mode,
typename boost::enable_if<is_basic_path<Path> >::type* )
: std::basic_ofstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::out ) {}
template <class charT, class traits>
basic_ofstream<charT,traits>::basic_ofstream( const wpath & file_ph,
std::ios_base::openmode mode )
: std::basic_ofstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::out ) {}
template <class charT, class traits> template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
basic_ofstream<charT,traits>::open( const Path & file_ph )
{
std::basic_ofstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::out ).c_str(), std::ios_base::out );
}
template <class charT, class traits>
void basic_ofstream<charT,traits>::open( const wpath & file_ph )
{
std::basic_ofstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::out ).c_str(), std::ios_base::out );
}
template <class charT, class traits> template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
basic_ofstream<charT,traits>::open( const Path & file_ph,
std::ios_base::openmode mode )
{
std::basic_ofstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::out );
}
template <class charT, class traits>
void basic_ofstream<charT,traits>::open( const wpath & file_ph,
std::ios_base::openmode mode )
{
std::basic_ofstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::out );
}
// basic_fstream definitions -----------------------------------------------//
template <class charT, class traits> template<class Path>
basic_fstream<charT,traits>::basic_fstream(const Path & file_ph,
typename boost::enable_if<is_basic_path<Path> >::type* )
: std::basic_fstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in|std::ios_base::out ).c_str(),
std::ios_base::in|std::ios_base::out ) {}
template <class charT, class traits>
basic_fstream<charT,traits>::basic_fstream( const wpath & file_ph )
: std::basic_fstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in|std::ios_base::out ).c_str(),
std::ios_base::in|std::ios_base::out ) {}
template <class charT, class traits> template<class Path>
basic_fstream<charT,traits>::basic_fstream( const Path & file_ph,
std::ios_base::openmode mode,
typename boost::enable_if<is_basic_path<Path> >::type* )
: std::basic_fstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in | std::ios_base::out ) {}
template <class charT, class traits>
basic_fstream<charT,traits>::basic_fstream( const wpath & file_ph,
std::ios_base::openmode mode )
: std::basic_fstream<charT,traits>(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in | std::ios_base::out ) {}
template <class charT, class traits> template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
basic_fstream<charT,traits>::open( const Path & file_ph )
{
std::basic_fstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in|std::ios_base::out ).c_str(),
std::ios_base::in|std::ios_base::out );
}
template <class charT, class traits>
void basic_fstream<charT,traits>::open( const wpath & file_ph )
{
std::basic_fstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
std::ios_base::in|std::ios_base::out ).c_str(),
std::ios_base::in|std::ios_base::out );
}
template <class charT, class traits> template<class Path>
typename boost::enable_if<is_basic_path<Path>, void>::type
basic_fstream<charT,traits>::open( const Path & file_ph,
std::ios_base::openmode mode )
{
std::basic_fstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in | std::ios_base::out );
}
template <class charT, class traits>
void basic_fstream<charT,traits>::open( const wpath & file_ph,
std::ios_base::openmode mode )
{
std::basic_fstream<charT,traits>::open(
detail::path_proxy( file_ph.external_file_string(),
mode ).c_str(), mode | std::ios_base::in | std::ios_base::out );
}
# endif
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
template <class charT, class traits>
basic_filebuf<charT,traits> *
basic_filebuf<charT, traits>::open( const path & file_ph,
std::ios_base::openmode mode )
{
return std::basic_filebuf<charT,traits>::open(
file_ph.file_string().c_str(), mode ) == 0 ? 0 : this;
}
# endif
template <class charT, class traits>
basic_ifstream<charT,traits>::basic_ifstream( const path & file_ph )
: std::basic_ifstream<charT,traits>(
file_ph.file_string().c_str(), std::ios_base::in ) {}
template <class charT, class traits>
basic_ifstream<charT,traits>::basic_ifstream( const path & file_ph,
std::ios_base::openmode mode )
: std::basic_ifstream<charT,traits>(
file_ph.file_string().c_str(), mode ) {}
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
template <class charT, class traits>
void basic_ifstream<charT,traits>::open( const path & file_ph )
{
std::basic_ifstream<charT,traits>::open(
file_ph.file_string().c_str(), std::ios_base::in );
}
template <class charT, class traits>
void basic_ifstream<charT,traits>::open( const path & file_ph,
std::ios_base::openmode mode )
{
std::basic_ifstream<charT,traits>::open(
file_ph.file_string().c_str(), mode );
}
# endif
template <class charT, class traits>
basic_ofstream<charT,traits>::basic_ofstream( const path & file_ph )
: std::basic_ofstream<charT,traits>(
file_ph.file_string().c_str(), std::ios_base::out ) {}
template <class charT, class traits>
basic_ofstream<charT,traits>::basic_ofstream( const path & file_ph,
std::ios_base::openmode mode )
: std::basic_ofstream<charT,traits>(
file_ph.file_string().c_str(), mode ) {}
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
template <class charT, class traits>
void basic_ofstream<charT,traits>::open( const path & file_ph )
{
std::basic_ofstream<charT,traits>::open(
file_ph.file_string().c_str(), std::ios_base::out );
}
template <class charT, class traits>
void basic_ofstream<charT,traits>::open( const path & file_ph,
std::ios_base::openmode mode )
{
std::basic_ofstream<charT,traits>::open(
file_ph.file_string().c_str(), mode );
}
# endif
template <class charT, class traits>
basic_fstream<charT,traits>::basic_fstream( const path & file_ph )
: std::basic_fstream<charT,traits>(
file_ph.file_string().c_str(),
std::ios_base::in|std::ios_base::out ) {}
template <class charT, class traits>
basic_fstream<charT,traits>::basic_fstream( const path & file_ph,
std::ios_base::openmode mode )
: std::basic_fstream<charT,traits>(
file_ph.file_string().c_str(), mode ) {}
# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1200 ) // VC++ 6.0 can't handle this
template <class charT, class traits>
void basic_fstream<charT,traits>::open( const path & file_ph )
{
std::basic_fstream<charT,traits>::open(
file_ph.file_string().c_str(), std::ios_base::in|std::ios_base::out );
}
template <class charT, class traits>
void basic_fstream<charT,traits>::open( const path & file_ph,
std::ios_base::openmode mode )
{
std::basic_fstream<charT,traits>::open(
file_ph.file_string().c_str(), mode );
}
# endif
} // namespace filesystem
} // namespace boost
#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
#endif // BOOST_FILESYSTEM_FSTREAM_HPP
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