diff --git a/include/ndnboost/filesystem/path.hpp b/include/ndnboost/filesystem/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 NDNBOOST_FILESYSTEM_PATH_HPP
+#define NDNBOOST_FILESYSTEM_PATH_HPP
+
+#include <ndnboost/config.hpp>
+
+# if defined( NDNBOOST_NO_STD_WSTRING )
+#   error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
+# endif
+
+#include <ndnboost/filesystem/config.hpp>
+#include <ndnboost/filesystem/path_traits.hpp>  // includes <cwchar>
+#include <ndnboost/system/error_code.hpp>
+#include <ndnboost/system/system_error.hpp>
+#include <ndnboost/iterator/iterator_facade.hpp>
+#include <ndnboost/shared_ptr.hpp>
+#include <ndnboost/io/detail/quoted_manip.hpp>
+#include <ndnboost/static_assert.hpp>
+#include <ndnboost/functional/hash_fwd.hpp>
+#include <ndnboost/type_traits/is_integral.hpp>
+#include <string>
+#include <iterator>
+#include <cstring>
+#include <iosfwd>
+#include <stdexcept>
+#include <cassert>
+#include <locale>
+#include <algorithm>
+
+#include <ndnboost/config/abi_prefix.hpp> // must be the last #include
+
+namespace ndnboost
+{
+namespace filesystem
+{
+  //------------------------------------------------------------------------------------//
+  //                                                                                    //
+  //                                    class path                                      //
+  //                                                                                    //
+  //------------------------------------------------------------------------------------//
+
+  class NDNBOOST_FILESYSTEM_DECL path
+  {
+  public:
+
+    //  value_type is the character type used by the operating system API to
+    //  represent paths.
+
+# ifdef NDNBOOST_WINDOWS_API
+    typedef wchar_t                        value_type;
+    NDNBOOST_STATIC_CONSTEXPR value_type      preferred_separator = L'\\';
+# else 
+    typedef char                           value_type;
+    NDNBOOST_STATIC_CONSTEXPR value_type      preferred_separator = '/';
+# 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.
+
+    //  [defaults] "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 ndnboost::enable_if<path_traits::is_pathable<
+        typename ndnboost::decay<Source>::type> >::type* =0)
+    {
+      path_traits::dispatch(source, m_pathname, codecvt());
+    }
+
+    //  Overloads for the operating system API's native character type. Rationale:
+    //    - Avoids use of codecvt() for native value_type strings. This limits the
+    //      impact of locale("") initialization failures on POSIX systems to programs
+    //      that actually depend on locale(""). It further ensures that exceptions thrown
+    //      as a result of such failues occur after main() has started, so can be caught.
+    //      This is a partial resolution of tickets 4688, 5100, and 5289.
+    //    - A slight optimization for a common use case, particularly on POSIX since
+    //      value_type is char and that is the most common useage.
+    path(const value_type* s) : m_pathname(s) {}
+    path(const std::basic_string<value_type>& s) : m_pathname(s) {}
+
+    template <class Source>
+    path(Source const& source, const codecvt_type& cvt)
+    //  see [defaults] 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;
+    }
+
+    path& operator=(const value_type* ptr)  // required in case ptr overlaps *this
+    {
+      m_pathname = ptr;
+      return *this;
+    }
+
+    template <class Source>
+      typename ndnboost::enable_if<path_traits::is_pathable<
+        typename ndnboost::decay<Source>::type>, path&>::type
+    operator=(Source const& source)
+    {
+      m_pathname.clear();
+      path_traits::dispatch(source, m_pathname, codecvt());
+      return *this;
+    }
+
+    path& assign(const value_type* ptr, const codecvt_type&)  // required in case ptr overlaps *this
+    {
+      m_pathname = ptr;
+      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;
+    }
+
+    //  -----  concatenation  -----
+
+    path& operator+=(const path& p)         {m_pathname += p.m_pathname; return *this;}
+    path& operator+=(const string_type& s)  {m_pathname += s; return *this;}
+    path& operator+=(const value_type* ptr) {m_pathname += ptr; return *this;}
+    path& operator+=(value_type c)          {m_pathname += c; return *this;}
+
+    template <class Source>
+      typename ndnboost::enable_if<path_traits::is_pathable<
+        typename ndnboost::decay<Source>::type>, path&>::type
+    operator+=(Source const& source)
+    {
+      return concat(source, codecvt());
+    }
+
+    template <class CharT>
+      typename ndnboost::enable_if<is_integral<CharT>, path&>::type
+    operator+=(CharT c)
+    {
+      CharT tmp[2];
+      tmp[0] = c;
+      tmp[1] = 0;
+      return concat(tmp, codecvt());
+    }
+
+    template <class Source>
+    path& concat(Source const& source, const codecvt_type& cvt)
+    {
+      path_traits::dispatch(source, m_pathname, cvt);
+      return *this;
+    }
+
+    template <class InputIterator>
+    path& concat(InputIterator begin, InputIterator end)
+    { 
+      return concat(begin, end, codecvt());
+    }
+
+    template <class InputIterator>
+    path& concat(InputIterator begin, InputIterator end, const codecvt_type& cvt)
+    { 
+      if (begin == end)
+        return *this;
+      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);
+
+    path& operator/=(const value_type* ptr);
+
+    template <class Source>
+      typename ndnboost::enable_if<path_traits::is_pathable<
+        typename ndnboost::decay<Source>::type>, path&>::type
+    operator/=(Source const& source)
+    {
+      return append(source, codecvt());
+    }
+
+    path& append(const value_type* ptr, const codecvt_type&)  // required in case ptr overlaps *this
+    {
+      this->operator/=(ptr);
+      return *this;
+    }
+
+    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 NDNBOOST_POSIX_API
+      { return *this; }  // POSIX no effect
+#   else // NDNBOOST_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 NDNBOOST_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   // NDNBOOST_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 NDNBOOST_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 // NDNBOOST_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
+
+    //  -----  compare  -----
+
+    int compare(const path& p) const NDNBOOST_NOEXCEPT;  // generic, lexicographical
+    int compare(const std::string& s) const { return compare(path(s)); }
+    int compare(const value_type* s) const  { return compare(path(s)); }
+
+    //  -----  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 NDNBOOST_WINDOWS_API
+      return has_root_name() && has_root_directory();
+#     else
+      return has_root_directory();
+#     endif
+    }
+    bool is_relative() const         { return !is_absolute(); } 
+
+    //  -----  iterators  -----
+
+    class iterator;
+    typedef iterator const_iterator;
+
+    iterator begin() const;
+    iterator end() const;
+
+    //  -----  static member functions  -----
+
+    static std::locale  imbue(const std::locale& loc);
+    static const        codecvt_type& codecvt();
+
+    //  -----  deprecated functions  -----
+
+# if defined(NDNBOOST_FILESYSTEM_DEPRECATED) && defined(NDNBOOST_FILESYSTEM_NO_DEPRECATED)
+#   error both NDNBOOST_FILESYSTEM_DEPRECATED and NDNBOOST_FILESYSTEM_NO_DEPRECATED are defined
+# endif
+
+# if !defined(NDNBOOST_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(NDNBOOST_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;
+
+    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);
+
+  };  // class path
+
+  namespace detail
+  {
+    NDNBOOST_FILESYSTEM_DECL
+      int lex_compare(path::iterator first1, path::iterator last1,
+        path::iterator first2, path::iterator last2);
+  }
+
+# ifndef NDNBOOST_FILESYSTEM_NO_DEPRECATED
+  typedef path wpath;
+# endif
+
+  //------------------------------------------------------------------------------------//
+  //                             class path::iterator                                   //
+  //------------------------------------------------------------------------------------//
+ 
+  class path::iterator
+    : public ndnboost::iterator_facade<
+      path::iterator,
+      path const,
+      ndnboost::bidirectional_traversal_tag >
+  {
+  private:
+    friend class ndnboost::iterator_core_access;
+    friend class ndnboost::filesystem::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 m_element in
+                                         // m_path_ptr->m_pathname.
+                                         // if m_element is implicit dot, m_pos is the
+                                         // position of the last separator in the path.
+                                         // 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)
+    { return detail::lex_compare(first1, last1, first2, last2) < 0; }
+  
+  inline bool operator==(const path& lhs, const path& rhs)              {return lhs.compare(rhs) == 0;}
+  inline bool operator==(const path& lhs, const path::string_type& rhs) {return lhs.compare(rhs) == 0;} 
+  inline bool operator==(const path::string_type& lhs, const path& rhs) {return rhs.compare(lhs) == 0;}
+  inline bool operator==(const path& lhs, const path::value_type* rhs)  {return lhs.compare(rhs) == 0;}
+  inline bool operator==(const path::value_type* lhs, const path& rhs)  {return rhs.compare(lhs) == 0;}
+  
+  inline bool operator!=(const path& lhs, const path& rhs)              {return lhs.compare(rhs) != 0;}
+  inline bool operator!=(const path& lhs, const path::string_type& rhs) {return lhs.compare(rhs) != 0;} 
+  inline bool operator!=(const path::string_type& lhs, const path& rhs) {return rhs.compare(lhs) != 0;}
+  inline bool operator!=(const path& lhs, const path::value_type* rhs)  {return lhs.compare(rhs) != 0;}
+  inline bool operator!=(const path::value_type* lhs, const path& rhs)  {return rhs.compare(lhs) != 0;}
+
+  // TODO: why do == and != have additional overloads, but the others don't?
+
+  inline bool operator<(const path& lhs, const path& rhs)  {return lhs.compare(rhs) < 0;}
+  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);}
+
+  inline std::size_t hash_value(const path& x)
+  {
+# ifdef NDNBOOST_WINDOWS_API
+    std::size_t seed = 0;
+    for(const path::value_type* it = x.c_str(); *it; ++it)
+      hash_combine(seed, *it == '/' ? L'\\' : *it);
+    return seed;
+# else   // NDNBOOST_POSIX_API
+    return hash_range(x.native().begin(), x.native().end());
+# endif
+  }
+
+  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 ndnboost::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
+      << ndnboost::io::quoted(p.template 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 >> ndnboost::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.
+
+  NDNBOOST_FILESYSTEM_DECL bool portable_posix_name(const std::string & name);
+  NDNBOOST_FILESYSTEM_DECL bool windows_name(const std::string & name);
+  NDNBOOST_FILESYSTEM_DECL bool portable_name(const std::string & name);
+  NDNBOOST_FILESYSTEM_DECL bool portable_directory_name(const std::string & name);
+  NDNBOOST_FILESYSTEM_DECL bool portable_file_name(const std::string & name);
+  NDNBOOST_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 filesystem
+}  // namespace ndnboost
+
+//----------------------------------------------------------------------------//
+
+#include <ndnboost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
+
+#endif  // NDNBOOST_FILESYSTEM_PATH_HPP