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authorRemko Tronçon <git@el-tramo.be>2010-11-24 20:33:19 (GMT)
committerRemko Tronçon <git@el-tramo.be>2010-11-24 20:35:17 (GMT)
commit332d60c56dfaa11fdd135088279d15cd5983b3d4 (patch)
treedd77717a4e1732da929d5ff8a0471fa3f005e201 /3rdParty/Boost/src/boost/filesystem/v3/path.hpp
parent90c44a10fec26d2a0935b2d62e82b6a5be028373 (diff)
downloadswift-contrib-332d60c56dfaa11fdd135088279d15cd5983b3d4.zip
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Upgraded Boost to 1.45.0.
Diffstat (limited to '3rdParty/Boost/src/boost/filesystem/v3/path.hpp')
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+// filesystem path.hpp ---------------------------------------------------------------//
+
+// Copyright Beman Dawes 2002-2005, 2009
+// Copyright Vladimir Prus 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
+
+// path::stem(), extension(), and replace_extension() are based on
+// basename(), extension(), and change_extension() from the original
+// filesystem/convenience.hpp header by Vladimir Prus.
+
+#ifndef BOOST_FILESYSTEM_PATH_HPP
+#define BOOST_FILESYSTEM_PATH_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/v3/config.hpp>
+#include <boost/filesystem/v3/path_traits.hpp> // includes <cwchar>
+#include <boost/system/error_code.hpp>
+#include <boost/system/system_error.hpp>
+#include <boost/iterator/iterator_facade.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/io/detail/quoted_manip.hpp>
+#include <boost/static_assert.hpp>
+#include <string>
+#include <iterator>
+#include <cstring>
+#include <iosfwd>
+#include <stdexcept>
+#include <cassert>
+#include <locale>
+#include <algorithm>
+
+#include <boost/config/abi_prefix.hpp> // must be the last #include
+
+namespace boost
+{
+namespace filesystem3
+{
+ //------------------------------------------------------------------------------------//
+ // //
+ // class path //
+ // //
+ //------------------------------------------------------------------------------------//
+
+ class BOOST_FILESYSTEM_DECL path
+ {
+ public:
+
+ // value_type is the character type used by the operating system API to
+ // represent paths.
+
+# ifdef BOOST_WINDOWS_API
+ typedef wchar_t value_type;
+# else
+ typedef char value_type;
+# endif
+ typedef std::basic_string<value_type> string_type;
+ typedef std::codecvt<wchar_t, char, std::mbstate_t> codecvt_type;
+
+
+ // ----- character encoding conversions -----
+
+ // Following the principle of least astonishment, path input arguments
+ // passed to or obtained from the operating system via objects of
+ // class path behave as if they were directly passed to or
+ // obtained from the O/S API, unless conversion is explicitly requested.
+ //
+ // POSIX specfies that path strings are passed unchanged to and from the
+ // API. Note that this is different from the POSIX command line utilities,
+ // which convert according to a locale.
+ //
+ // Thus for POSIX, char strings do not undergo conversion. wchar_t strings
+ // are converted to/from char using the path locale or, if a conversion
+ // argument is given, using a conversion object modeled on
+ // std::wstring_convert.
+ //
+ // The path locale, which is global to the thread, can be changed by the
+ // imbue() function. It is initialized to an implementation defined locale.
+ //
+ // For Windows, wchar_t strings do not undergo conversion. char strings
+ // are converted using the "ANSI" or "OEM" code pages, as determined by
+ // the AreFileApisANSI() function, or, if a conversion argument is given,
+ // using a conversion object modeled on std::wstring_convert.
+ //
+ // See m_pathname comments for further important rationale.
+
+ // TODO: rules needed for operating systems that use / or .
+ // differently, or format directory paths differently from file paths.
+ //
+ // ************************************************************************
+ //
+ // More work needed: How to handle an operating system that may have
+ // slash characters or dot characters in valid filenames, either because
+ // it doesn't follow the POSIX standard, or because it allows MBCS
+ // filename encodings that may contain slash or dot characters. For
+ // example, ISO/IEC 2022 (JIS) encoding which allows switching to
+ // JIS x0208-1983 encoding. A valid filename in this set of encodings is
+ // 0x1B 0x24 0x42 [switch to X0208-1983] 0x24 0x2F [U+304F Kiragana letter KU]
+ // ^^^^
+ // Note that 0x2F is the ASCII slash character
+ //
+ // ************************************************************************
+
+ // Supported source arguments: half-open iterator range, container, c-array,
+ // and single pointer to null terminated string.
+
+ // All source arguments except pointers to null terminated byte strings support
+ // multi-byte character strings which may have embedded nulls. Embedded null
+ // support is required for some Asian languages on Windows.
+
+ // "const codecvt_type& cvt=codecvt()" default arguments are not used because some
+ // compilers, such as Microsoft prior to VC++ 10, do not handle defaults correctly
+ // in templates.
+
+ // ----- constructors -----
+
+ path(){}
+
+ path(const path& p) : m_pathname(p.m_pathname) {}
+
+ template <class Source>
+ path(Source const& source,
+ typename boost::enable_if<path_traits::is_pathable<
+ typename boost::decay<Source>::type> >::type* =0)
+ {
+ path_traits::dispatch(source, m_pathname, codecvt());
+ }
+
+ template <class Source>
+ path(Source const& source, const codecvt_type& cvt)
+ // see note above explaining why codecvt() default arguments are not used
+ {
+ path_traits::dispatch(source, m_pathname, cvt);
+ }
+
+ template <class InputIterator>
+ path(InputIterator begin, InputIterator end)
+ {
+ if (begin != end)
+ {
+ std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
+ s(begin, end);
+ path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, codecvt());
+ }
+ }
+
+ template <class InputIterator>
+ path(InputIterator begin, InputIterator end, const codecvt_type& cvt)
+ {
+ if (begin != end)
+ {
+ std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
+ s(begin, end);
+ path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
+ }
+ }
+
+ // ----- assignments -----
+
+ path& operator=(const path& p)
+ {
+ m_pathname = p.m_pathname;
+ return *this;
+ }
+
+ template <class Source>
+ typename boost::enable_if<path_traits::is_pathable<
+ typename boost::decay<Source>::type>, path&>::type
+ operator=(Source const& source)
+ {
+ m_pathname.clear();
+ path_traits::dispatch(source, m_pathname, codecvt());
+ return *this;
+ }
+
+ template <class Source>
+ path& assign(Source const& source, const codecvt_type& cvt)
+ {
+ m_pathname.clear();
+ path_traits::dispatch(source, m_pathname, cvt);
+ return *this;
+ }
+
+ template <class InputIterator>
+ path& assign(InputIterator begin, InputIterator end)
+ {
+ return assign(begin, end, codecvt());
+ }
+
+ template <class InputIterator>
+ path& assign(InputIterator begin, InputIterator end, const codecvt_type& cvt)
+ {
+ m_pathname.clear();
+ if (begin != end)
+ {
+ std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
+ s(begin, end);
+ path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
+ }
+ return *this;
+ }
+
+ // ----- appends -----
+
+ // if a separator is added, it is the preferred separator for the platform;
+ // slash for POSIX, backslash for Windows
+
+ path& operator/=(const path& p);
+
+ template <class Source>
+ typename boost::enable_if<path_traits::is_pathable<
+ typename boost::decay<Source>::type>, path&>::type
+ operator/=(Source const& source)
+ {
+ return append(source, codecvt());
+ }
+
+ template <class Source>
+ path& append(Source const& source, const codecvt_type& cvt);
+
+ template <class InputIterator>
+ path& append(InputIterator begin, InputIterator end)
+ {
+ return append(begin, end, codecvt());
+ }
+
+ template <class InputIterator>
+ path& append(InputIterator begin, InputIterator end, const codecvt_type& cvt);
+
+ // ----- modifiers -----
+
+ void clear() { m_pathname.clear(); }
+ path& make_preferred()
+# ifdef BOOST_POSIX_API
+ { return *this; } // POSIX no effect
+# else // BOOST_WINDOWS_API
+ ; // change slashes to backslashes
+# endif
+ path& remove_filename();
+ path& replace_extension(const path& new_extension = path());
+ void swap(path& rhs) { m_pathname.swap(rhs.m_pathname); }
+
+ // ----- observers -----
+
+ // For operating systems that format file paths differently than directory
+ // paths, return values from observers are formatted as file names unless there
+ // is a trailing separator, in which case returns are formatted as directory
+ // paths. POSIX and Windows make no such distinction.
+
+ // Implementations are permitted to return const values or const references.
+
+ // The string or path returned by an observer are specified as being formatted
+ // as "native" or "generic".
+ //
+ // For POSIX, these are all the same format; slashes and backslashes are as input and
+ // are not modified.
+ //
+ // For Windows, native: as input; slashes and backslashes are not modified;
+ // this is the format of the internally stored string.
+ // generic: backslashes are converted to slashes
+
+ // ----- native format observers -----
+
+ const string_type& native() const { return m_pathname; } // Throws: nothing
+ const value_type* c_str() const { return m_pathname.c_str(); } // Throws: nothing
+
+ template <class String>
+ String string() const;
+
+ template <class String>
+ String string(const codecvt_type& cvt) const;
+
+# ifdef BOOST_WINDOWS_API
+ const std::string string() const { return string(codecvt()); }
+ const std::string string(const codecvt_type& cvt) const
+ {
+ std::string tmp;
+ if (!m_pathname.empty())
+ path_traits::convert(&*m_pathname.begin(), &*m_pathname.begin()+m_pathname.size(),
+ tmp, cvt);
+ return tmp;
+ }
+
+ // string_type is std::wstring, so there is no conversion
+ const std::wstring& wstring() const { return m_pathname; }
+ const std::wstring& wstring(const codecvt_type&) const { return m_pathname; }
+
+# else // BOOST_POSIX_API
+ // string_type is std::string, so there is no conversion
+ const std::string& string() const { return m_pathname; }
+ const std::string& string(const codecvt_type&) const { return m_pathname; }
+
+ const std::wstring wstring() const { return wstring(codecvt()); }
+ const std::wstring wstring(const codecvt_type& cvt) const
+ {
+ std::wstring tmp;
+ if (!m_pathname.empty())
+ path_traits::convert(&*m_pathname.begin(), &*m_pathname.begin()+m_pathname.size(),
+ tmp, cvt);
+ return tmp;
+ }
+
+# endif
+
+ // ----- generic format observers -----
+
+ template <class String>
+ String generic_string() const;
+
+ template <class String>
+ String generic_string(const codecvt_type& cvt) const;
+
+# ifdef BOOST_WINDOWS_API
+ const std::string generic_string() const { return generic_string(codecvt()); }
+ const std::string generic_string(const codecvt_type& cvt) const;
+ const std::wstring generic_wstring() const;
+ const std::wstring generic_wstring(const codecvt_type&) const { return generic_wstring(); };
+
+# else // BOOST_POSIX_API
+ // On POSIX-like systems, the generic format is the same as the native format
+ const std::string& generic_string() const { return m_pathname; }
+ const std::string& generic_string(const codecvt_type&) const { return m_pathname; }
+ const std::wstring generic_wstring() const { return wstring(codecvt()); }
+ const std::wstring generic_wstring(const codecvt_type& cvt) const { return wstring(cvt); }
+
+# endif
+
+ // ----- decomposition -----
+
+ path root_path() const;
+ path root_name() const; // returns 0 or 1 element path
+ // even on POSIX, root_name() is non-empty() for network paths
+ path root_directory() const; // returns 0 or 1 element path
+ path relative_path() const;
+ path parent_path() const;
+ path filename() const; // returns 0 or 1 element path
+ path stem() const; // returns 0 or 1 element path
+ path extension() const; // returns 0 or 1 element path
+
+ // ----- query -----
+
+ bool empty() const { return m_pathname.empty(); } // name consistent with std containers
+ bool has_root_path() const { return has_root_directory() || has_root_name(); }
+ bool has_root_name() const { return !root_name().empty(); }
+ bool has_root_directory() const { return !root_directory().empty(); }
+ bool has_relative_path() const { return !relative_path().empty(); }
+ bool has_parent_path() const { return !parent_path().empty(); }
+ bool has_filename() const { return !m_pathname.empty(); }
+ bool has_stem() const { return !stem().empty(); }
+ bool has_extension() const { return !extension().empty(); }
+ bool is_absolute() const
+ {
+# ifdef BOOST_WINDOWS_API
+ return has_root_name() && has_root_directory();
+# else
+ return has_root_directory();
+# endif
+ }
+ bool is_relative() const { return !is_absolute(); }
+
+ // ----- imbue -----
+
+ static std::locale imbue(const std::locale& loc);
+
+ // ----- codecvt -----
+
+ static const codecvt_type& codecvt()
+ {
+ return *wchar_t_codecvt_facet();
+ }
+
+ // ----- iterators -----
+
+ class iterator;
+ typedef iterator const_iterator;
+
+ iterator begin() const;
+ iterator end() const;
+
+ // ----- deprecated functions -----
+
+# if defined(BOOST_FILESYSTEM_DEPRECATED) && defined(BOOST_FILESYSTEM_NO_DEPRECATED)
+# error both BOOST_FILESYSTEM_DEPRECATED and BOOST_FILESYSTEM_NO_DEPRECATED are defined
+# endif
+
+# if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
+ // recently deprecated functions supplied by default
+ path& normalize() { return m_normalize(); }
+ path& remove_leaf() { return remove_filename(); }
+ path leaf() const { return filename(); }
+ path branch_path() const { return parent_path(); }
+ bool has_leaf() const { return !m_pathname.empty(); }
+ bool has_branch_path() const { return !parent_path().empty(); }
+ bool is_complete() const { return is_absolute(); }
+# endif
+
+# if defined(BOOST_FILESYSTEM_DEPRECATED)
+ // deprecated functions with enough signature or semantic changes that they are
+ // not supplied by default
+ const std::string file_string() const { return string(); }
+ const std::string directory_string() const { return string(); }
+ const std::string native_file_string() const { return string(); }
+ const std::string native_directory_string() const { return string(); }
+ const string_type external_file_string() const { return native(); }
+ const string_type external_directory_string() const { return native(); }
+
+ // older functions no longer supported
+ //typedef bool (*name_check)(const std::string & name);
+ //basic_path(const string_type& str, name_check) { operator/=(str); }
+ //basic_path(const typename string_type::value_type* s, name_check)
+ // { operator/=(s);}
+ //static bool default_name_check_writable() { return false; }
+ //static void default_name_check(name_check) {}
+ //static name_check default_name_check() { return 0; }
+ //basic_path& canonize();
+# endif
+
+//--------------------------------------------------------------------------------------//
+// class path private members //
+//--------------------------------------------------------------------------------------//
+
+ private:
+# if defined(_MSC_VER)
+# pragma warning(push) // Save warning settings
+# pragma warning(disable : 4251) // disable warning: class 'std::basic_string<_Elem,_Traits,_Ax>'
+# endif // needs to have dll-interface...
+/*
+ m_pathname has the type, encoding, and format required by the native
+ operating system. Thus for POSIX and Windows there is no conversion for
+ passing m_pathname.c_str() to the O/S API or when obtaining a path from the
+ O/S API. POSIX encoding is unspecified other than for dot and slash
+ characters; POSIX just treats paths as a sequence of bytes. Windows
+ encoding is UCS-2 or UTF-16 depending on the version.
+*/
+ string_type m_pathname; // Windows: as input; backslashes NOT converted to slashes,
+ // slashes NOT converted to backslashes
+# if defined(_MSC_VER)
+# pragma warning(pop) // restore warning settings.
+# endif
+
+ string_type::size_type m_append_separator_if_needed();
+ // Returns: If separator is to be appended, m_pathname.size() before append. Otherwise 0.
+ // Note: An append is never performed if size()==0, so a returned 0 is unambiguous.
+
+ void m_erase_redundant_separator(string_type::size_type sep_pos);
+ string_type::size_type m_parent_path_end() const;
+ void m_portable();
+
+ path& m_normalize();
+
+ // Was qualified; como433beta8 reports:
+ // warning #427-D: qualified name is not allowed in member declaration
+ friend class iterator;
+ friend bool operator<(const path& lhs, const path& rhs);
+
+ // see path::iterator::increment/decrement comment below
+ static void m_path_iterator_increment(path::iterator & it);
+ static void m_path_iterator_decrement(path::iterator & it);
+
+ static const codecvt_type *& wchar_t_codecvt_facet();
+
+ }; // class path
+
+# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
+ typedef path wpath;
+# endif
+
+ //------------------------------------------------------------------------------------//
+ // class path::iterator //
+ //------------------------------------------------------------------------------------//
+
+ class path::iterator
+ : public boost::iterator_facade<
+ iterator,
+ path const,
+ boost::bidirectional_traversal_tag >
+ {
+ private:
+ friend class boost::iterator_core_access;
+ friend class boost::filesystem3::path;
+ friend void m_path_iterator_increment(path::iterator & it);
+ friend void m_path_iterator_decrement(path::iterator & it);
+
+ const path& dereference() const { return m_element; }
+
+ bool equal(const iterator & rhs) const
+ {
+ return m_path_ptr == rhs.m_path_ptr && m_pos == rhs.m_pos;
+ }
+
+ // iterator_facade derived classes don't seem to like implementations in
+ // separate translation unit dll's, so forward to class path static members
+ void increment() { m_path_iterator_increment(*this); }
+ void decrement() { m_path_iterator_decrement(*this); }
+
+ path m_element; // current element
+ const path * m_path_ptr; // path being iterated over
+ string_type::size_type m_pos; // position of name in
+ // m_path_ptr->m_pathname. The
+ // end() iterator is indicated by
+ // m_pos == m_path_ptr->m_pathname.size()
+ }; // path::iterator
+
+ //------------------------------------------------------------------------------------//
+ // //
+ // non-member functions //
+ // //
+ //------------------------------------------------------------------------------------//
+
+ // std::lexicographical_compare would infinately recurse because path iterators
+ // yield paths, so provide a path aware version
+ inline bool lexicographical_compare(path::iterator first1, path::iterator last1,
+ path::iterator first2, path::iterator last2)
+ {
+ for (; first1 != last1 && first2 != last2 ; ++first1, ++first2)
+ {
+ if (first1->native() < first2->native()) return true;
+ if (first2->native() < first1->native()) return false;
+ }
+ return first1 == last1 && first2 != last2;
+ }
+
+ inline bool operator<(const path& lhs, const path& rhs)
+ {
+ return lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
+ }
+
+ inline bool operator<=(const path& lhs, const path& rhs) { return !(rhs < lhs); }
+ inline bool operator> (const path& lhs, const path& rhs) { return rhs < lhs; }
+ inline bool operator>=(const path& lhs, const path& rhs) { return !(lhs < rhs); }
+
+ // equality operators act as if comparing generic format strings, to achieve the
+ // effect of lexicographical_compare element by element compare.
+ // operator==() efficiency is a concern; a user reported the original version 2
+ // !(lhs < rhs) && !(rhs < lhs) implementation caused a serious performance problem
+ // for a map of 10,000 paths.
+
+# ifdef BOOST_WINDOWS_API
+ inline bool operator==(const path& lhs, const path::value_type* rhs)
+ {
+ const path::value_type* l(lhs.c_str());
+ while ((*l == *rhs || (*l == L'\\' && *rhs == L'/') || (*l == L'/' && *rhs == L'\\'))
+ && *l) { ++l; ++rhs; }
+ return *l == *rhs || (*l == L'\\' && *rhs == L'/') || (*l == L'/' && *rhs == L'\\');
+ }
+ inline bool operator==(const path& lhs, const path& rhs) { return lhs == rhs.c_str(); }
+ inline bool operator==(const path& lhs, const path::string_type& rhs) { return lhs == rhs.c_str(); }
+ inline bool operator==(const path::string_type& lhs, const path& rhs) { return rhs == lhs.c_str(); }
+ inline bool operator==(const path::value_type* lhs, const path& rhs) { return rhs == lhs; }
+# else // BOOST_POSIX_API
+ inline bool operator==(const path& lhs, const path& rhs) { return lhs.native() == rhs.native(); }
+ inline bool operator==(const path& lhs, const path::string_type& rhs) { return lhs.native() == rhs; }
+ inline bool operator==(const path& lhs, const path::value_type* rhs) { return lhs.native() == rhs; }
+ inline bool operator==(const path::string_type& lhs, const path& rhs) { return lhs == rhs.native(); }
+ inline bool operator==(const path::value_type* lhs, const path& rhs) { return lhs == rhs.native(); }
+# endif
+
+ inline bool operator!=(const path& lhs, const path& rhs) { return !(lhs == rhs); }
+ inline bool operator!=(const path& lhs, const path::string_type& rhs) { return !(lhs == rhs); }
+ inline bool operator!=(const path& lhs, const path::value_type* rhs) { return !(lhs == rhs); }
+ inline bool operator!=(const path::string_type& lhs, const path& rhs) { return !(lhs == rhs); }
+ inline bool operator!=(const path::value_type* lhs, const path& rhs) { return !(lhs == rhs); }
+
+ inline void swap(path& lhs, path& rhs) { lhs.swap(rhs); }
+
+ inline path operator/(const path& lhs, const path& rhs) { return path(lhs) /= rhs; }
+
+ // inserters and extractors
+ // use boost::io::quoted() to handle spaces in paths
+ // use '&' as escape character to ease use for Windows paths
+
+ template <class Char, class Traits>
+ inline std::basic_ostream<Char, Traits>&
+ operator<<(std::basic_ostream<Char, Traits>& os, const path& p)
+ {
+ return os
+ << boost::io::quoted(p.string<std::basic_string<Char> >(), static_cast<Char>('&'));
+ }
+
+ template <class Char, class Traits>
+ inline std::basic_istream<Char, Traits>&
+ operator>>(std::basic_istream<Char, Traits>& is, path& p)
+ {
+ std::basic_string<Char> str;
+ is >> boost::io::quoted(str, static_cast<Char>('&'));
+ p = str;
+ return is;
+ }
+
+ // name_checks
+
+ // These functions are holdovers from version 1. It isn't clear they have much
+ // usefulness, or how to generalize them for later versions.
+
+ BOOST_FILESYSTEM_DECL bool portable_posix_name(const std::string & name);
+ BOOST_FILESYSTEM_DECL bool windows_name(const std::string & name);
+ BOOST_FILESYSTEM_DECL bool portable_name(const std::string & name);
+ BOOST_FILESYSTEM_DECL bool portable_directory_name(const std::string & name);
+ BOOST_FILESYSTEM_DECL bool portable_file_name(const std::string & name);
+ BOOST_FILESYSTEM_DECL bool native(const std::string & name);
+
+//--------------------------------------------------------------------------------------//
+// class path member template implementation //
+//--------------------------------------------------------------------------------------//
+
+ template <class InputIterator>
+ path& path::append(InputIterator begin, InputIterator end, const codecvt_type& cvt)
+ {
+ if (begin == end)
+ return *this;
+ string_type::size_type sep_pos(m_append_separator_if_needed());
+ std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
+ s(begin, end);
+ path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
+ if (sep_pos)
+ m_erase_redundant_separator(sep_pos);
+ return *this;
+ }
+
+ template <class Source>
+ path& path::append(Source const & source, const codecvt_type& cvt)
+ {
+ if (path_traits::empty(source))
+ return *this;
+ string_type::size_type sep_pos(m_append_separator_if_needed());
+ path_traits::dispatch(source, m_pathname, cvt);
+ if (sep_pos)
+ m_erase_redundant_separator(sep_pos);
+ return *this;
+ }
+
+//--------------------------------------------------------------------------------------//
+// class path member template specializations //
+//--------------------------------------------------------------------------------------//
+
+ template <> inline
+ std::string path::string<std::string>() const
+ { return string(); }
+
+ template <> inline
+ std::wstring path::string<std::wstring>() const
+ { return wstring(); }
+
+ template <> inline
+ std::string path::string<std::string>(const codecvt_type& cvt) const
+ { return string(cvt); }
+
+ template <> inline
+ std::wstring path::string<std::wstring>(const codecvt_type& cvt) const
+ { return wstring(cvt); }
+
+ template <> inline
+ std::string path::generic_string<std::string>() const
+ { return generic_string(); }
+
+ template <> inline
+ std::wstring path::generic_string<std::wstring>() const
+ { return generic_wstring(); }
+
+ template <> inline
+ std::string path::generic_string<std::string>(const codecvt_type& cvt) const
+ { return generic_string(cvt); }
+
+ template <> inline
+ std::wstring path::generic_string<std::wstring>(const codecvt_type& cvt) const
+ { return generic_wstring(cvt); }
+
+
+} // namespace filesystem3
+} // namespace boost
+
+//----------------------------------------------------------------------------//
+
+namespace boost
+{
+ namespace filesystem
+ {
+ using filesystem3::path;
+# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
+ using filesystem3::wpath;
+# endif
+ using filesystem3::lexicographical_compare;
+ using filesystem3::portable_posix_name;
+ using filesystem3::windows_name;
+ using filesystem3::portable_name;
+ using filesystem3::portable_directory_name;
+ using filesystem3::portable_file_name;
+ using filesystem3::native;
+ using filesystem3::swap;
+ using filesystem3::operator<;
+ using filesystem3::operator==;
+ using filesystem3::operator!=;
+ using filesystem3::operator>;
+ using filesystem3::operator<=;
+ using filesystem3::operator>=;
+ using filesystem3::operator/;
+ using filesystem3::operator<<;
+ using filesystem3::operator>>;
+ }
+}
+
+//----------------------------------------------------------------------------//
+
+#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
+
+#endif // BOOST_FILESYSTEM_PATH_HPP