Added boost header

test/external/boost/filesystem/v2/convenience.hpp

@@ -0,0 +1,339 @@
+//  boost/filesystem/convenience.hpp  ----------------------------------------//
+
+//  Copyright Beman Dawes, 2002-2005
+//  Copyright Vladimir Prus, 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_FILESYSTEM2_CONVENIENCE_HPP
+#define BOOST_FILESYSTEM2_CONVENIENCE_HPP
+
+#include <boost/filesystem/v2/config.hpp>
+#include <boost/filesystem/v2/operations.hpp>
+#include <boost/system/error_code.hpp>
+#include <vector>
+#include <stack>
+
+#include <boost/config/abi_prefix.hpp> // must be the last #include
+
+# ifndef BOOST_FILESYSTEM2_NARROW_ONLY
+#   define BOOST_FS_FUNC(BOOST_FS_TYPE) \
+      template<class Path> typename boost::enable_if<is_basic_path<Path>, \
+      BOOST_FS_TYPE>::type
+#   define BOOST_FS_FUNC_STRING BOOST_FS_FUNC(typename Path::string_type)
+#   define BOOST_FS_TYPENAME typename
+# else
+#   define BOOST_FS_FUNC(BOOST_FS_TYPE) inline BOOST_FS_TYPE 
+    typedef boost::filesystem::path Path;
+#   define BOOST_FS_FUNC_STRING inline std::string
+#   define BOOST_FS_TYPENAME
+# endif
+
+namespace boost
+{
+  namespace filesystem2
+  {
+
+    BOOST_FS_FUNC(bool) create_directories(const Path& ph)
+    {
+         if (ph.empty() || exists(ph))
+         {
+           if ( !ph.empty() && !is_directory(ph) )
+               boost::throw_exception( basic_filesystem_error<Path>(
+                 "boost::filesystem::create_directories", ph,
+                 make_error_code( boost::system::errc::file_exists ) ) );
+           return false;
+         }
+
+         // First create branch, by calling ourself recursively
+         create_directories(ph.parent_path());
+         // Now that parent's path exists, create the directory
+         create_directory(ph);
+         return true;
+     }
+
+# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
+
+    BOOST_FS_FUNC_STRING extension(const Path& ph)
+    {
+      typedef BOOST_FS_TYPENAME Path::string_type string_type;
+      string_type filename = ph.filename();
+
+      BOOST_FS_TYPENAME string_type::size_type n = filename.rfind('.');
+      if (n != string_type::npos)
+        return filename.substr(n);
+      else
+        return string_type();
+    }
+
+    BOOST_FS_FUNC_STRING basename(const Path& ph)
+    {
+      typedef BOOST_FS_TYPENAME Path::string_type string_type;
+      string_type filename = ph.filename();
+      BOOST_FS_TYPENAME string_type::size_type n = filename.rfind('.');
+      return filename.substr(0, n);
+    }
+
+
+    BOOST_FS_FUNC(Path) change_extension( const Path & ph,
+      const BOOST_FS_TYPENAME Path::string_type & new_extension )
+    {
+#   if !defined(_STLPORT_VERSION)
+      return ph.parent_path() / (basename(ph) + new_extension); 
+#   else
+      typedef BOOST_FS_TYPENAME Path::string_type string_type; 
+      string_type filename = basename(ph) + new_extension; 
+      return ph.parent_path() / filename;
+#   endif
+    } 
+# endif
+
+# ifndef BOOST_FILESYSTEM2_NARROW_ONLY
+
+    // "do-the-right-thing" overloads  ---------------------------------------//
+
+    inline bool create_directories(const path& ph)
+      { return create_directories<path>(ph); }
+    inline bool create_directories(const wpath& ph)
+      { return create_directories<wpath>(ph); }
+
+# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
+    inline std::string extension(const path& ph)
+      { return extension<path>(ph); }
+    inline std::wstring extension(const wpath& ph)
+      { return extension<wpath>(ph); }
+
+    inline std::string basename(const path& ph)
+      { return basename<path>( ph ); }
+    inline std::wstring basename(const wpath& ph)
+      { return basename<wpath>( ph ); }
+
+    inline path change_extension( const path & ph, const std::string& new_ex )
+      { return change_extension<path>( ph, new_ex ); }
+    inline wpath change_extension( const wpath & ph, const std::wstring& new_ex )
+      { return change_extension<wpath>( ph, new_ex ); }
+# endif
+
+# endif
+
+
+    //  basic_recursive_directory_iterator helpers  --------------------------//
+
+    namespace detail
+    {
+      template< class Path >
+      struct recur_dir_itr_imp
+      {
+        typedef basic_directory_iterator< Path > element_type;
+        std::stack< element_type, std::vector< element_type > > m_stack;
+        int  m_level;
+        bool m_no_push;
+        bool m_no_throw;
+
+        recur_dir_itr_imp() : m_level(0), m_no_push(false), m_no_throw(false) {}
+      };
+
+    } // namespace detail
+
+    //  basic_recursive_directory_iterator  ----------------------------------//
+
+    template< class Path >
+    class basic_recursive_directory_iterator
+      : public boost::iterator_facade<
+          basic_recursive_directory_iterator<Path>,
+          basic_directory_entry<Path>,
+          boost::single_pass_traversal_tag >
+    {
+    public:
+      typedef Path path_type;
+
+      basic_recursive_directory_iterator(){}  // creates the "end" iterator
+
+      explicit basic_recursive_directory_iterator( const Path & dir_path );
+      basic_recursive_directory_iterator( const Path & dir_path,
+        system::error_code & ec );
+
+      int level() const { return m_imp->m_level; }
+
+      void pop();
+      void no_push()
+      {
+        BOOST_ASSERT( m_imp.get() && "attempt to no_push() on end iterator" );
+        m_imp->m_no_push = true;
+      }
+
+      file_status status() const
+      {
+        BOOST_ASSERT( m_imp.get()
+          && "attempt to call status() on end recursive_iterator" );
+        return m_imp->m_stack.top()->status();
+      }
+
+      file_status symlink_status() const
+      {
+        BOOST_ASSERT( m_imp.get()
+          && "attempt to call symlink_status() on end recursive_iterator" );
+        return m_imp->m_stack.top()->symlink_status();
+      }
+
+    private:
+
+      // shared_ptr provides shallow-copy semantics required for InputIterators.
+      // m_imp.get()==0 indicates the end iterator.
+      boost::shared_ptr< detail::recur_dir_itr_imp< Path > >  m_imp;
+
+      friend class boost::iterator_core_access;
+
+      typename boost::iterator_facade< 
+        basic_recursive_directory_iterator<Path>,
+        basic_directory_entry<Path>,
+        boost::single_pass_traversal_tag >::reference
+      dereference() const 
+      {
+        BOOST_ASSERT( m_imp.get() && "attempt to dereference end iterator" );
+        return *m_imp->m_stack.top();
+      }
+
+      void increment();
+
+      bool equal( const basic_recursive_directory_iterator & rhs ) const
+        { return m_imp == rhs.m_imp; }
+
+    };
+
+    typedef basic_recursive_directory_iterator<path> recursive_directory_iterator;
+# ifndef BOOST_FILESYSTEM2_NARROW_ONLY
+    typedef basic_recursive_directory_iterator<wpath> wrecursive_directory_iterator;
+# endif
+
+    //  basic_recursive_directory_iterator implementation  -------------------//
+
+    //  constructors
+    template<class Path>
+    basic_recursive_directory_iterator<Path>::
+      basic_recursive_directory_iterator( const Path & dir_path )
+      : m_imp( new detail::recur_dir_itr_imp<Path> )
+    {
+      m_imp->m_stack.push( basic_directory_iterator<Path>( dir_path ) );
+      if ( m_imp->m_stack.top () == basic_directory_iterator<Path>() )
+        { m_imp.reset (); }
+    }
+
+    template<class Path>
+    basic_recursive_directory_iterator<Path>::
+      basic_recursive_directory_iterator( const Path & dir_path,
+        system::error_code & ec )
+      : m_imp( new detail::recur_dir_itr_imp<Path> )
+    {
+      m_imp->m_no_throw = true;
+      m_imp->m_stack.push( basic_directory_iterator<Path>( dir_path, ec ) );
+      if ( m_imp->m_stack.top () == basic_directory_iterator<Path>() )
+        { m_imp.reset (); }
+    }
+
+    //  increment
+    template<class Path>
+    void basic_recursive_directory_iterator<Path>::increment()
+    {
+      BOOST_ASSERT( m_imp.get() && "increment on end iterator" );
+      
+      static const basic_directory_iterator<Path> end_itr;
+
+      if ( m_imp->m_no_push )
+        { m_imp->m_no_push = false; }
+      else if ( is_directory( m_imp->m_stack.top()->status() ) )
+      {
+        system::error_code ec;
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x610))
+        if( m_imp->m_no_throw ) {
+            m_imp->m_stack.push(
+                basic_directory_iterator<Path>( *m_imp->m_stack.top(), ec )
+            );
+        }
+        else {
+            m_imp->m_stack.push(
+                basic_directory_iterator<Path>( *m_imp->m_stack.top() )
+            );
+        }
+#else
+        m_imp->m_stack.push(
+          m_imp->m_no_throw
+            ? basic_directory_iterator<Path>( *m_imp->m_stack.top(), ec )
+            : basic_directory_iterator<Path>( *m_imp->m_stack.top() ) );
+#endif
+        if ( m_imp->m_stack.top() != end_itr )
+        {
+          ++m_imp->m_level;
+          return;
+        }
+        m_imp->m_stack.pop();
+      }
+
+      while ( !m_imp->m_stack.empty()
+        && ++m_imp->m_stack.top() == end_itr )
+      {
+        m_imp->m_stack.pop();
+        --m_imp->m_level;
+      }
+
+      if ( m_imp->m_stack.empty() ) m_imp.reset(); // done, so make end iterator
+    }
+
+    //  pop
+    template<class Path>
+    void basic_recursive_directory_iterator<Path>::pop()
+    {
+      BOOST_ASSERT( m_imp.get() && "pop on end iterator" );
+      BOOST_ASSERT( m_imp->m_level > 0 && "pop with level < 1" );
+
+      static const basic_directory_iterator<Path> end_itr;
+
+      do
+      {
+        m_imp->m_stack.pop();
+        --m_imp->m_level;
+      }
+      while ( !m_imp->m_stack.empty()
+        && ++m_imp->m_stack.top() == end_itr );
+
+      if ( m_imp->m_stack.empty() ) m_imp.reset(); // done, so make end iterator
+    }
+
+  } // namespace filesystem2
+} // namespace boost
+
+#undef BOOST_FS_FUNC_STRING
+#undef BOOST_FS_FUNC
+
+//----------------------------------------------------------------------------//
+
+namespace boost
+{
+  namespace filesystem
+  {
+    using filesystem2::create_directories;
+    using filesystem2::basic_recursive_directory_iterator;
+    using filesystem2::recursive_directory_iterator;
+
+# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
+    using filesystem2::extension;
+    using filesystem2::basename;
+    using filesystem2::change_extension;
+# endif
+
+# ifndef BOOST_FILESYSTEM2_NARROW_ONLY
+    using filesystem2::wrecursive_directory_iterator;
+# endif
+
+  }
+}
+
+//----------------------------------------------------------------------------//
+
+#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
+#endif // BOOST_FILESYSTEM2_CONVENIENCE_HPP