-// boost/filesystem/path.hpp -----------------------------------------------//

-// Copyright Beman Dawes 2002-2005

-// Copyright Vladimir Prus 2002

-// Distributed under 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

-// basic_path's 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/filesystem/config.hpp>

-#include <boost/system/system_error.hpp>

-#include <boost/iterator/iterator_facade.hpp>

-#include <boost/throw_exception.hpp>

-#include <boost/shared_ptr.hpp>

-#include <boost/type_traits/is_same.hpp>

-#include <boost/static_assert.hpp>

-

-#include <string>

-#include <algorithm> // for lexicographical_compare

-#include <iosfwd> // needed by basic_path inserter and extractor

-#include <stdexcept>

-#include <cassert>

-

-# ifndef BOOST_FILESYSTEM_NARROW_ONLY

-# include <locale>

-# endif

-

-#include <boost/config/abi_prefix.hpp> // must be the last #include

-

-//----------------------------------------------------------------------------//

-

-namespace boost

-{

- namespace BOOST_FILESYSTEM_NAMESPACE

- {

- template<class String, class Traits> class basic_path;

-

- struct path_traits;

- typedef basic_path< std::string, path_traits > path;

-

- struct path_traits

- {

- typedef std::string internal_string_type;

- typedef std::string external_string_type;

- static external_string_type to_external( const path &,

- const internal_string_type & src ) { return src; }

- static internal_string_type to_internal(

- const external_string_type & src ) { return src; }

- };

-

-# ifndef BOOST_FILESYSTEM_NARROW_ONLY

-

- struct BOOST_FILESYSTEM_DECL wpath_traits;

-

- typedef basic_path< std::wstring, wpath_traits > wpath;

-

- struct BOOST_FILESYSTEM_DECL wpath_traits

- {

- typedef std::wstring internal_string_type;

-# ifdef BOOST_WINDOWS_API

- typedef std::wstring external_string_type;

- static external_string_type to_external( const wpath &,

- const internal_string_type & src ) { return src; }

- static internal_string_type to_internal(

- const external_string_type & src ) { return src; }

-# else

- typedef std::string external_string_type;

- static external_string_type to_external( const wpath & ph,

- const internal_string_type & src );

- static internal_string_type to_internal(

- const external_string_type & src );

-# endif

- static void imbue( const std::locale & loc );

- static bool imbue( const std::locale & loc, const std::nothrow_t & );

- };

-

-# endif // ifndef BOOST_FILESYSTEM_NARROW_ONLY

-

- // path traits ---------------------------------------------------------//

-

- template<class Path> struct is_basic_path

- { BOOST_STATIC_CONSTANT( bool, value = false ); };

- template<> struct is_basic_path<path>

- { BOOST_STATIC_CONSTANT( bool, value = true ); };

-# ifndef BOOST_FILESYSTEM_NARROW_ONLY

- template<> struct is_basic_path<wpath>

- { BOOST_STATIC_CONSTANT( bool, value = true ); };

-# endif

-

- // These only have to be specialized if Path::string_type::value_type

- // is not convertible from char, although specializations may eliminate

- // compiler warnings. See ticket 2543.

- template<class Path> struct slash

- { BOOST_STATIC_CONSTANT( char, value = '/' ); };

-

- template<class Path> struct dot

- { BOOST_STATIC_CONSTANT( char, value = '.' ); };

-

- template<class Path> struct colon

- { BOOST_STATIC_CONSTANT( char, value = ':' ); };

-

-# ifndef BOOST_FILESYSTEM_NARROW_ONLY

- template<> struct slash<wpath>

- { BOOST_STATIC_CONSTANT( wchar_t, value = L'/' ); };

- template<> struct dot<wpath>

- { BOOST_STATIC_CONSTANT( wchar_t, value = L'.' ); };

- template<> struct colon<wpath>

- { BOOST_STATIC_CONSTANT( wchar_t, value = L':' ); };

-# endif

-

-# ifdef BOOST_WINDOWS_PATH

- template<class Path> struct path_alt_separator

- { BOOST_STATIC_CONSTANT( char, value = '\\' ); };

-# ifndef BOOST_FILESYSTEM_NARROW_ONLY

- template<> struct path_alt_separator<wpath>

- { BOOST_STATIC_CONSTANT( wchar_t, value = L'\\' ); };

-# endif

-# endif

-

- // workaround for VC++ 7.0 and earlier issues with nested classes

- namespace detail

- {

- template<class Path>

- class iterator_helper

- {

- public:

- typedef typename Path::iterator iterator;

- static void do_increment( iterator & ph );

- static void do_decrement( iterator & ph );

- };

- }

-

- // basic_path ----------------------------------------------------------//

-

- template<class String, class Traits>

- class basic_path

- {

- // invariant: m_path valid according to the portable generic path grammar

-

- // validate template arguments

-// TODO: get these working

-// BOOST_STATIC_ASSERT( ::boost::is_same<String,typename Traits::internal_string_type>::value );

-// BOOST_STATIC_ASSERT( ::boost::is_same<typename Traits::external_string_type,std::string>::value || ::boost::is_same<typename Traits::external_string_type,std::wstring>::value );

-

- public:

- // compiler generates copy constructor and copy assignment

-

- typedef basic_path<String, Traits> path_type;

- typedef String string_type;

- typedef typename String::value_type value_type;

- typedef Traits traits_type;

- typedef typename Traits::external_string_type external_string_type;

-

- // constructors/destructor

- basic_path() {}

- basic_path( const string_type & s ) { operator/=( s ); }

- basic_path( const value_type * s ) { operator/=( s ); }

-# ifndef BOOST_NO_MEMBER_TEMPLATES

- template <class InputIterator>

- basic_path( InputIterator first, InputIterator last )

- { append( first, last ); }

-# endif

- ~basic_path() {}

-

- // assignments

- basic_path & operator=( const string_type & s )

- {

-# if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, >= 310)

- m_path.clear();

-# else

- m_path.erase( m_path.begin(), m_path.end() );

-# endif

- operator/=( s );

- return *this;

- }

- basic_path & operator=( const value_type * s )

- {

-# if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, >= 310)

- m_path.clear();

-# else

- m_path.erase( m_path.begin(), m_path.end() );

-# endif

- operator/=( s );

- return *this;

- }

-# ifndef BOOST_NO_MEMBER_TEMPLATES

- template <class InputIterator>

- basic_path & assign( InputIterator first, InputIterator last )

- { m_path.clear(); append( first, last ); return *this; }

-# endif

-

- // modifiers

- basic_path & operator/=( const basic_path & rhs ) { return operator /=( rhs.string().c_str() ); }

- basic_path & operator/=( const string_type & rhs ) { return operator /=( rhs.c_str() ); }

- basic_path & operator/=( const value_type * s );

-# ifndef BOOST_NO_MEMBER_TEMPLATES

- template <class InputIterator>

- basic_path & append( InputIterator first, InputIterator last );

-# endif

-

- void clear()

- {

-# if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, >= 310)

- m_path.clear();

-# else

- m_path.erase( m_path.begin(), m_path.end() );

-# endif

- }

-

- void swap( basic_path & rhs )

- {

- m_path.swap( rhs.m_path );

-# ifdef BOOST_CYGWIN_PATH

- std::swap( m_cygwin_root, rhs.m_cygwin_root );

-# endif

- }

-

- basic_path & remove_filename();

- basic_path & replace_extension( const string_type & new_extension = string_type() );

-

-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED

- basic_path & remove_leaf() { return remove_filename(); }

-# endif

-

- // observers

- const string_type & string() const { return m_path; }

- const string_type file_string() const;

- const string_type directory_string() const { return file_string(); }

-

- const external_string_type external_file_string() const { return Traits::to_external( *this, file_string() ); }

- const external_string_type external_directory_string() const { return Traits::to_external( *this, directory_string() ); }

-

- basic_path root_path() const;

- string_type root_name() const;

- string_type root_directory() const;

- basic_path relative_path() const;

- basic_path parent_path() const;

- string_type filename() const;

- string_type stem() const;

- string_type extension() const;

-

-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED

- string_type leaf() const { return filename(); }

- basic_path branch_path() const { return parent_path(); }

- bool has_leaf() const { return !m_path.empty(); }

- bool has_branch_path() const { return !parent_path().empty(); }

-# endif

-

- bool empty() const { return m_path.empty(); } // name consistent with std containers

- bool is_complete() const;

- bool has_root_path() const;

- bool has_root_name() const;

- bool has_root_directory() const;

- bool has_relative_path() const { return !relative_path().empty(); }

- bool has_filename() const { return !m_path.empty(); }

- bool has_parent_path() const { return !parent_path().empty(); }

-

- // iterators

- class iterator : public boost::iterator_facade<

- iterator,

- string_type const,

- boost::bidirectional_traversal_tag >

- {

- private:

- friend class boost::iterator_core_access;

- friend class boost::BOOST_FILESYSTEM_NAMESPACE::basic_path<String, Traits>;

-

- const string_type & dereference() const

- { return m_name; }

- bool equal( const iterator & rhs ) const

- { return m_path_ptr == rhs.m_path_ptr && m_pos == rhs.m_pos; }

-

- friend class boost::BOOST_FILESYSTEM_NAMESPACE::detail::iterator_helper<path_type>;

-

- void increment()

- {

- boost::BOOST_FILESYSTEM_NAMESPACE::detail::iterator_helper<path_type>::do_increment(

- *this );

- }

- void decrement()

- {

- boost::BOOST_FILESYSTEM_NAMESPACE::detail::iterator_helper<path_type>::do_decrement(

- *this );

- }

-

- string_type m_name; // current element

- const basic_path * m_path_ptr; // path being iterated over

- typename string_type::size_type m_pos; // position of name in

- // path_ptr->string(). The

- // end() iterator is indicated by

- // pos == path_ptr->m_path.size()

- }; // iterator

-

- typedef iterator const_iterator;

-

- iterator begin() const;

- iterator end() const;

-

- private:

- // Note: This is an implementation for POSIX and Windows, where there

- // are only minor differences between generic and native path grammars.

- // Private members might be quite different in other implementations,

- // particularly where there were wide differences between portable and

- // native path formats, or between file_string() and

- // directory_string() formats, or simply that the implementation

- // was willing expend additional memory to achieve greater speed for

- // some operations at the expense of other operations.

-

- string_type m_path; // invariant: portable path grammar

- // on Windows, backslashes converted to slashes

-

-# ifdef BOOST_CYGWIN_PATH

- bool m_cygwin_root; // if present, m_path[0] was slash. note: initialization

- // done by append

-# endif

-

- void m_append_separator_if_needed();

- void m_append( value_type value ); // converts Windows alt_separator

-

- // Was qualified; como433beta8 reports:

- // warning #427-D: qualified name is not allowed in member declaration

- friend class iterator;

- friend class boost::BOOST_FILESYSTEM_NAMESPACE::detail::iterator_helper<path_type>;

-

- // Deprecated features ease transition for existing code. Don't use these

- // in new code.

-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED

- public:

- 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 );}

- string_type native_file_string() const { return file_string(); }

- string_type native_directory_string() const { return directory_string(); }

- 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();

- basic_path & normalize();

- };

- // basic_path non-member functions ---------------------------------------//

-

- template< class String, class Traits >

- inline void swap( basic_path<String, Traits> & lhs,

- basic_path<String, Traits> & rhs ) { lhs.swap( rhs ); }

-

- template< class String, class Traits >

- bool operator<( const basic_path<String, Traits> & lhs, const basic_path<String, Traits> & rhs )

- {

- return std::lexicographical_compare(

- lhs.begin(), lhs.end(), rhs.begin(), rhs.end() );

- }

-

- template< class String, class Traits >

- bool operator<( const typename basic_path<String, Traits>::string_type::value_type * lhs,

- const basic_path<String, Traits> & rhs )

- {

- basic_path<String, Traits> tmp( lhs );

- return std::lexicographical_compare(

- tmp.begin(), tmp.end(), rhs.begin(), rhs.end() );

- }

-

- template< class String, class Traits >

- bool operator<( const typename basic_path<String, Traits>::string_type & lhs,

- const basic_path<String, Traits> & rhs )

- {

- basic_path<String, Traits> tmp( lhs );

- return std::lexicographical_compare(

- tmp.begin(), tmp.end(), rhs.begin(), rhs.end() );

- }

-

- template< class String, class Traits >

- bool operator<( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type::value_type * rhs )

- {

- basic_path<String, Traits> tmp( rhs );

- return std::lexicographical_compare(

- lhs.begin(), lhs.end(), tmp.begin(), tmp.end() );

- }

-

- template< class String, class Traits >

- bool operator<( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type & rhs )

- {

- basic_path<String, Traits> tmp( rhs );

- return std::lexicographical_compare(

- lhs.begin(), lhs.end(), tmp.begin(), tmp.end() );

- }

-

- // operator == uses hand-written compare rather than !(lhs < rhs) && !(rhs < lhs)

- // because the result is the same yet the direct compare is much more efficient

- // than lexicographical_compare, which would also be called twice.

-

- template< class String, class Traits >

- inline bool operator==( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type::value_type * rhs )

- {

- typedef typename

- boost::BOOST_FILESYSTEM_NAMESPACE::basic_path<String, Traits> path_type;

- const typename path_type::string_type::value_type * l (lhs.string().c_str());

- while ( (*l == *rhs

-# ifdef BOOST_WINDOWS_PATH

- || (*l == path_alt_separator<path_type>::value && *rhs == slash<path_type>::value)

- || (*l == slash<path_type>::value && *rhs == path_alt_separator<path_type>::value)

-# endif

- ) && *l ) { ++l; ++rhs; }

- return *l == *rhs

-# ifdef BOOST_WINDOWS_PATH

- || (*l == path_alt_separator<path_type>::value && *rhs == slash<path_type>::value)

- || (*l == slash<path_type>::value && *rhs == path_alt_separator<path_type>::value)

-# endif

- ;

- }

-

- template< class String, class Traits >

- inline bool operator==( const basic_path<String, Traits> & lhs,

- const basic_path<String, Traits> & rhs )

- {

- return lhs == rhs.string().c_str();

- }

-

- template< class String, class Traits >

- inline bool operator==( const typename basic_path<String, Traits>::string_type::value_type * lhs,

- const basic_path<String, Traits> & rhs )

- {

- return rhs == lhs;

- }

-

- template< class String, class Traits >

- inline bool operator==( const typename basic_path<String, Traits>::string_type & lhs,

- const basic_path<String, Traits> & rhs )

- {

- return rhs == lhs.c_str();

- }

-

- template< class String, class Traits >

- inline bool operator==( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type & rhs )

- {

- return lhs == rhs.c_str();

- }

-

- template< class String, class Traits >

- inline bool operator!=( const basic_path<String, Traits> & lhs,

- const basic_path<String, Traits> & rhs )

- { return !(lhs == rhs); }

-

- template< class String, class Traits >

- inline bool operator!=( const typename basic_path<String,

- Traits>::string_type::value_type * lhs,

- const basic_path<String, Traits> & rhs )

- { return !(lhs == rhs); }

-

- template< class String, class Traits >

- inline bool operator!=( const typename basic_path<String, Traits>::string_type & lhs,

- const basic_path<String, Traits> & rhs )

- { return !(lhs == rhs); }

-

- template< class String, class Traits >

- inline bool operator!=( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type::value_type * rhs )

- { return !(lhs == rhs); }

-

- template< class String, class Traits >

- inline bool operator!=( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type & rhs )

- { return !(lhs == rhs); }

-

- template< class String, class Traits >

- inline bool operator>( const basic_path<String, Traits> & lhs, const basic_path<String, Traits> & rhs ) { return rhs < lhs; }

-

- template< class String, class Traits >

- inline bool operator>( const typename basic_path<String, Traits>::string_type::value_type * lhs,

- const basic_path<String, Traits> & rhs ) { return rhs < basic_path<String, Traits>(lhs); }

-

- template< class String, class Traits >

- inline bool operator>( const typename basic_path<String, Traits>::string_type & lhs,

- const basic_path<String, Traits> & rhs ) { return rhs < basic_path<String, Traits>(lhs); }

-

- template< class String, class Traits >

- inline bool operator>( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type::value_type * rhs )

- { return basic_path<String, Traits>(rhs) < lhs; }

-

- template< class String, class Traits >

- inline bool operator>( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type & rhs )

- { return basic_path<String, Traits>(rhs) < lhs; }

-

- template< class String, class Traits >

- inline bool operator<=( const basic_path<String, Traits> & lhs, const basic_path<String, Traits> & rhs ) { return !(rhs < lhs); }

-

- template< class String, class Traits >

- inline bool operator<=( const typename basic_path<String, Traits>::string_type::value_type * lhs,

- const basic_path<String, Traits> & rhs ) { return !(rhs < basic_path<String, Traits>(lhs)); }

-

- template< class String, class Traits >

- inline bool operator<=( const typename basic_path<String, Traits>::string_type & lhs,

- const basic_path<String, Traits> & rhs ) { return !(rhs < basic_path<String, Traits>(lhs)); }

-

- template< class String, class Traits >

- inline bool operator<=( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type::value_type * rhs )

- { return !(basic_path<String, Traits>(rhs) < lhs); }

-

- template< class String, class Traits >

- inline bool operator<=( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type & rhs )

- { return !(basic_path<String, Traits>(rhs) < lhs); }

-

- template< class String, class Traits >

- inline bool operator>=( const basic_path<String, Traits> & lhs, const basic_path<String, Traits> & rhs ) { return !(lhs < rhs); }

-

- template< class String, class Traits >

- inline bool operator>=( const typename basic_path<String, Traits>::string_type::value_type * lhs,

- const basic_path<String, Traits> & rhs ) { return !(lhs < basic_path<String, Traits>(rhs)); }

-

- template< class String, class Traits >

- inline bool operator>=( const typename basic_path<String, Traits>::string_type & lhs,

- const basic_path<String, Traits> & rhs ) { return !(lhs < basic_path<String, Traits>(rhs)); }

-

- template< class String, class Traits >

- inline bool operator>=( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type::value_type * rhs )

- { return !(basic_path<String, Traits>(lhs) < rhs); }

-

- template< class String, class Traits >

- inline bool operator>=( const basic_path<String, Traits> & lhs,

- const typename basic_path<String, Traits>::string_type & rhs )

- { return !(basic_path<String, Traits>(lhs) < rhs); }

-

- // operator /

-

- template< class String, class Traits >

- inline basic_path<String, Traits> operator/(

- const basic_path<String, Traits> & lhs,

- const basic_path<String, Traits> & rhs )

- { return basic_path<String, Traits>( lhs ) /= rhs; }

-

- template< class String, class Traits >

- inline basic_path<String, Traits> operator/(

- const basic_path<String, Traits> & lhs,

- const typename String::value_type * rhs )

- { return basic_path<String, Traits>( lhs ) /=

- basic_path<String, Traits>( rhs ); }

-

- template< class String, class Traits >

- inline basic_path<String, Traits> operator/(

- const basic_path<String, Traits> & lhs, const String & rhs )

- { return basic_path<String, Traits>( lhs ) /=

- basic_path<String, Traits>( rhs ); }

-

- template< class String, class Traits >

- inline basic_path<String, Traits> operator/(

- const typename String::value_type * lhs,

- const basic_path<String, Traits> & rhs )

- { return basic_path<String, Traits>( lhs ) /= rhs; }

-

- template< class String, class Traits >

- inline basic_path<String, Traits> operator/(

- const String & lhs, const basic_path<String, Traits> & rhs )

- { return basic_path<String, Traits>( lhs ) /= rhs; }

-

- // inserters and extractors --------------------------------------------//

-

-// bypass VC++ 7.0 and earlier, and broken Borland compilers

-# if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) && !BOOST_WORKAROUND(__BORLANDC__, < 0x610)

- template< class Path >

- std::basic_ostream< typename Path::string_type::value_type,

- typename Path::string_type::traits_type > &

- operator<<

- ( std::basic_ostream< typename Path::string_type::value_type,

- typename Path::string_type::traits_type >& os, const Path & ph )

- {

- os << ph.string();

- return os;

- }

-

- template< class Path >

- std::basic_istream< typename Path::string_type::value_type,

- typename Path::string_type::traits_type > &

- operator>>

- ( std::basic_istream< typename Path::string_type::value_type,

- typename Path::string_type::traits_type >& is, Path & ph )

- {

- typename Path::string_type str;

- is >> str;

- ph = str;

- return is;

- }

-# elif BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))

- template< class String, class Traits >

- std::basic_ostream< BOOST_DEDUCED_TYPENAME String::value_type,

- BOOST_DEDUCED_TYPENAME String::traits_type > &

- operator<<

- ( std::basic_ostream< BOOST_DEDUCED_TYPENAME String::value_type,

- BOOST_DEDUCED_TYPENAME String::traits_type >& os,

- const basic_path< String, Traits > & ph )

- {

- os << ph.string();

- return os;

- }

-

- template< class String, class Traits >

- std::basic_istream< BOOST_DEDUCED_TYPENAME String::value_type,

- BOOST_DEDUCED_TYPENAME String::traits_type > &

- operator>>

- ( std::basic_istream< BOOST_DEDUCED_TYPENAME String::value_type,

- BOOST_DEDUCED_TYPENAME String::traits_type> & is,

- basic_path< String, Traits > & ph )

- {

- String str;

- is >> str;

- ph = str;

- return is;

- }

-# endif

-

- // basic_filesystem_error helpers --------------------------------------//

-

- // Originally choice of implementation was done via specialization of

- // basic_filesystem_error::what(). Several compilers (GCC, aCC, etc.)

- // couldn't handle that, so the choice is now accomplished by overloading.

-

- namespace detail

- {

- // BOOST_FILESYSTEM_DECL version works for VC++ but not GCC. Go figure!

- inline

- const char * what( const char * sys_err_what,

- const path & path1_arg, const path & path2_arg, std::string & target )

- {

- try

- {

- if ( target.empty() )

- {

- target = sys_err_what;

- if ( !path1_arg.empty() )

- {

- target += ": \"";

- target += path1_arg.file_string();

- target += "\"";

- }

- if ( !path2_arg.empty() )

- {

- target += ", \"";

- target += path2_arg.file_string();

- target += "\"";

- }

- }

- return target.c_str();

- }

- catch (...)

- {

- return sys_err_what;

- }

- }

-

- template<class Path>

- const char * what( const char * sys_err_what,

- const Path & /*path1_arg*/, const Path & /*path2_arg*/, std::string & /*target*/ )

- {

- return sys_err_what;

- }

- }

-

- // basic_filesystem_error ----------------------------------------------//

-

- template<class Path>

- class basic_filesystem_error : public system::system_error

- {

- // see http://www.boost.org/more/error_handling.html for design rationale

- public:

- // compiler generates copy constructor and copy assignment

-

- typedef Path path_type;

-

- basic_filesystem_error( const std::string & what_arg,

- system::error_code ec );

-

- basic_filesystem_error( const std::string & what_arg,

- const path_type & path1_arg, system::error_code ec );

-

- basic_filesystem_error( const std::string & what_arg, const path_type & path1_arg,

- const path_type & path2_arg, system::error_code ec );

-

- ~basic_filesystem_error() throw() {}

-

- const path_type & path1() const

- {

- static const path_type empty_path;

- return m_imp_ptr.get() ? m_imp_ptr->m_path1 : empty_path ;

- }

- const path_type & path2() const

- {

- static const path_type empty_path;

- return m_imp_ptr.get() ? m_imp_ptr->m_path2 : empty_path ;

- }

-

- const char * what() const throw()

- {

- if ( !m_imp_ptr.get() )

- return system::system_error::what();

- return detail::what( system::system_error::what(), m_imp_ptr->m_path1,

- m_imp_ptr->m_path2, m_imp_ptr->m_what );

- }

-

- private:

- struct m_imp

- {

- path_type m_path1; // may be empty()

- path_type m_path2; // may be empty()

- std::string m_what; // not built until needed

- };

- boost::shared_ptr<m_imp> m_imp_ptr;

- };

-

- typedef basic_filesystem_error<path> filesystem_error;

-

-# ifndef BOOST_FILESYSTEM_NARROW_ONLY

- typedef basic_filesystem_error<wpath> wfilesystem_error;

- // path::name_checks -----------------------------------------------------//

-

- 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 );

- inline bool no_check( const std::string & )

- { return true; }

-

-// implementation -----------------------------------------------------------//

- namespace detail

- {

-

- // is_separator helper ------------------------------------------------//

-

- template<class Path>

- inline bool is_separator( typename Path::string_type::value_type c )

- {

- return c == slash<Path>::value

-# ifdef BOOST_WINDOWS_PATH

- || c == path_alt_separator<Path>::value

-# endif

- ;

- }

-

- // filename_pos helper ----------------------------------------------------//

-

- template<class String, class Traits>

- typename String::size_type filename_pos(

- const String & str, // precondition: portable generic path grammar

- typename String::size_type end_pos ) // end_pos is past-the-end position

- // return 0 if str itself is filename (or empty)

- {

- typedef typename

- boost::BOOST_FILESYSTEM_NAMESPACE::basic_path<String, Traits> path_type;

-

- // case: "//"

- if ( end_pos == 2

- && str[0] == slash<path_type>::value

- && str[1] == slash<path_type>::value ) return 0;

-

- // case: ends in "/"

- if ( end_pos && str[end_pos-1] == slash<path_type>::value )

- return end_pos-1;

-

- // set pos to start of last element

- typename String::size_type pos(

- str.find_last_of( slash<path_type>::value, end_pos-1 ) );

-# ifdef BOOST_WINDOWS_PATH

- if ( pos == String::npos )

- pos = str.find_last_of( path_alt_separator<path_type>::value, end_pos-1 );

- if ( pos == String::npos )

- pos = str.find_last_of( colon<path_type>::value, end_pos-2 );

-# endif

-

- return ( pos == String::npos // path itself must be a filename (or empty)

- || (pos == 1 && str[0] == slash<path_type>::value) ) // or net

- ? 0 // so filename is entire string

- : pos + 1; // or starts after delimiter

- }

-

- // first_element helper -----------------------------------------------//

- // sets pos and len of first element, excluding extra separators

- // if src.empty(), sets pos,len, to 0,0.

-

- template<class String, class Traits>

- void first_element(

- const String & src, // precondition: portable generic path grammar

- typename String::size_type & element_pos,

- typename String::size_type & element_size,

-# if !BOOST_WORKAROUND( BOOST_MSVC, <= 1310 ) // VC++ 7.1

- typename String::size_type size = String::npos

-# else

- typename String::size_type size = -1

-# endif

- )

- {

- if ( size == String::npos ) size = src.size();

- element_pos = 0;

- element_size = 0;

- if ( src.empty() ) return;

-

- typedef typename boost::BOOST_FILESYSTEM_NAMESPACE::basic_path<String, Traits> path_type;

-

- typename String::size_type cur(0);

-

- // deal with // [network]

- if ( size >= 2 && src[0] == slash<path_type>::value

- && src[1] == slash<path_type>::value

- && (size == 2

- || src[2] != slash<path_type>::value) )

- {

- cur += 2;

- element_size += 2;

- }

-

- // leading (not non-network) separator

- else if ( src[0] == slash<path_type>::value )

- {

- ++element_size;

- // bypass extra leading separators

- while ( cur+1 < size

- && src[cur+1] == slash<path_type>::value )

- {

- ++cur;

- ++element_pos;

- }

- return;

- }

-

- // at this point, we have either a plain name, a network name,

- // or (on Windows only) a device name

-

- // find the end

- while ( cur < size

-# ifdef BOOST_WINDOWS_PATH

- && src[cur] != colon<path_type>::value

-# endif

- && src[cur] != slash<path_type>::value )

- {

- ++cur;

- ++element_size;

- }

-

-# ifdef BOOST_WINDOWS_PATH

- if ( cur == size ) return;

- // include device delimiter

- if ( src[cur] == colon<path_type>::value )

- { ++element_size; }

-# endif

-

- return;

- }

-

- // root_directory_start helper ----------------------------------------//

-

- template<class String, class Traits>

- typename String::size_type root_directory_start(

- const String & s, // precondition: portable generic path grammar

- typename String::size_type size )

- // return npos if no root_directory found

- {

- typedef typename boost::BOOST_FILESYSTEM_NAMESPACE::basic_path<String, Traits> path_type;

-

-# ifdef BOOST_WINDOWS_PATH

- // case "c:/"

- if ( size > 2

- && s[1] == colon<path_type>::value

- && s[2] == slash<path_type>::value ) return 2;

-# endif

-

- // case "//"

- if ( size == 2

- && s[0] == slash<path_type>::value

- && s[1] == slash<path_type>::value ) return String::npos;

-

- // case "//net {/}"

- if ( size > 3

- && s[0] == slash<path_type>::value

- && s[1] == slash<path_type>::value

- && s[2] != slash<path_type>::value )

- {

- typename String::size_type pos(

- s.find( slash<path_type>::value, 2 ) );

- return pos < size ? pos : String::npos;

- }

-

- // case "/"

- if ( size > 0 && s[0] == slash<path_type>::value ) return 0;

-

- return String::npos;

- }

-

- // is_non_root_slash helper -------------------------------------------//

-

- template<class String, class Traits>

- bool is_non_root_slash( const String & str,

- typename String::size_type pos ) // pos is position of the slash

- {

- typedef typename

- boost::BOOST_FILESYSTEM_NAMESPACE::basic_path<String, Traits>

- path_type;

-

- assert( !str.empty() && str[pos] == slash<path_type>::value

- && "precondition violation" );

-

- // subsequent logic expects pos to be for leftmost slash of a set

- while ( pos > 0 && str[pos-1] == slash<path_type>::value )

- --pos;

-

- return pos != 0

- && (pos <= 2 || str[1] != slash<path_type>::value

- || str.find( slash<path_type>::value, 2 ) != pos)

-# ifdef BOOST_WINDOWS_PATH

- && (pos !=2 || str[1] != colon<path_type>::value)

-# endif

- ;

- }

- } // namespace detail

-

- // decomposition functions ----------------------------------------------//

-

- template<class String, class Traits>

- String basic_path<String, Traits>::filename() const

- {

- typename String::size_type end_pos(

- detail::filename_pos<String, Traits>( m_path, m_path.size() ) );

- return (m_path.size()

- && end_pos

- && m_path[end_pos] == slash<path_type>::value

- && detail::is_non_root_slash< String, Traits >(m_path, end_pos))

- ? String( 1, dot<path_type>::value )

- : m_path.substr( end_pos );

- }

-

- template<class String, class Traits>

- String basic_path<String, Traits>::stem() const

- {

- string_type name = filename();

- typename string_type::size_type n = name.rfind(dot<path_type>::value);

- return name.substr(0, n);

- }

-

- template<class String, class Traits>

- String basic_path<String, Traits>::extension() const

- {

- string_type name = filename();

- typename string_type::size_type n = name.rfind(dot<path_type>::value);

- if (n != string_type::npos)

- return name.substr(n);

- else

- return string_type();

- }

-

- template<class String, class Traits>

- basic_path<String, Traits> basic_path<String, Traits>::parent_path() const

- {

- typename String::size_type end_pos(

- detail::filename_pos<String, Traits>( m_path, m_path.size() ) );

-

- bool filename_was_separator( m_path.size()

- && m_path[end_pos] == slash<path_type>::value );

-

- // skip separators unless root directory

- typename string_type::size_type root_dir_pos( detail::root_directory_start

- <string_type, traits_type>( m_path, end_pos ) );

- for ( ;

- end_pos > 0

- && (end_pos-1) != root_dir_pos

- && m_path[end_pos-1] == slash<path_type>::value

- ;

- --end_pos ) {}

-

- return (end_pos == 1 && root_dir_pos == 0 && filename_was_separator)

- ? path_type()

- : path_type( m_path.substr( 0, end_pos ) );

- }

-

- template<class String, class Traits>

- basic_path<String, Traits> basic_path<String, Traits>::relative_path() const

- {

- iterator itr( begin() );

- for ( ; itr.m_pos != m_path.size()

- && (itr.m_name[0] == slash<path_type>::value

-# ifdef BOOST_WINDOWS_PATH

- || itr.m_name[itr.m_name.size()-1]

- == colon<path_type>::value

-# endif

- ); ++itr ) {}

-

- return basic_path<String, Traits>( m_path.substr( itr.m_pos ) );

- }

-

- template<class String, class Traits>

- String basic_path<String, Traits>::root_name() const

- {

- iterator itr( begin() );

-

- return ( itr.m_pos != m_path.size()

- && (

- ( itr.m_name.size() > 1

- && itr.m_name[0] == slash<path_type>::value

- && itr.m_name[1] == slash<path_type>::value

- )

-# ifdef BOOST_WINDOWS_PATH

- || itr.m_name[itr.m_name.size()-1]

- == colon<path_type>::value

-# endif

- ) )

- ? *itr

- : String();

- }

-

- template<class String, class Traits>

- String basic_path<String, Traits>::root_directory() const

- {

- typename string_type::size_type start(

- detail::root_directory_start<String, Traits>( m_path, m_path.size() ) );

-

- return start == string_type::npos

- ? string_type()

- : m_path.substr( start, 1 );

- }

-

- template<class String, class Traits>

- basic_path<String, Traits> basic_path<String, Traits>::root_path() const

- {

- // even on POSIX, root_name() is non-empty() on network paths

- return basic_path<String, Traits>( root_name() ) /= root_directory();

- }

-

- // path query functions -------------------------------------------------//

-

- template<class String, class Traits>

- inline bool basic_path<String, Traits>::is_complete() const

- {

-# ifdef BOOST_WINDOWS_PATH

- return has_root_name() && has_root_directory();

-# else

- return has_root_directory();

-# endif

- }

-

- template<class String, class Traits>

- inline bool basic_path<String, Traits>::has_root_path() const

- {

- return !root_path().empty();

- }

-

- template<class String, class Traits>

- inline bool basic_path<String, Traits>::has_root_name() const

- {

- return !root_name().empty();

- }

-

- template<class String, class Traits>

- inline bool basic_path<String, Traits>::has_root_directory() const

- {

- return !root_directory().empty();

- }

-

- // append ---------------------------------------------------------------//

-

- template<class String, class Traits>

- void basic_path<String, Traits>::m_append_separator_if_needed()

- // requires: !empty()

- {

- if (

-# ifdef BOOST_WINDOWS_PATH

- *(m_path.end()-1) != colon<path_type>::value &&

-# endif

- *(m_path.end()-1) != slash<path_type>::value )

- {

- m_path += slash<path_type>::value;

- }

- }

-

- template<class String, class Traits>

- void basic_path<String, Traits>::m_append( value_type value )

- {

-# ifdef BOOST_CYGWIN_PATH

- if ( m_path.empty() ) m_cygwin_root = (value == slash<path_type>::value);

-# endif

-

-# ifdef BOOST_WINDOWS_PATH

- // for BOOST_WINDOWS_PATH, convert alt_separator ('\') to separator ('/')

- m_path += ( value == path_alt_separator<path_type>::value

- ? slash<path_type>::value

- : value );

-# else

- m_path += value;

-# endif

- }

-

- // except that it wouldn't work for BOOST_NO_MEMBER_TEMPLATES compilers,

- // the append() member template could replace this code.

- template<class String, class Traits>

- basic_path<String, Traits> & basic_path<String, Traits>::operator /=

- ( const value_type * next_p )

- {

- // ignore escape sequence on POSIX or Windows

- if ( *next_p == slash<path_type>::value

- && *(next_p+1) == slash<path_type>::value

- && *(next_p+2) == colon<path_type>::value ) next_p += 3;

-

- // append slash<path_type>::value if needed

- if ( !empty() && *next_p != 0

- && !detail::is_separator<path_type>( *next_p ) )

- { m_append_separator_if_needed(); }

-

- for ( ; *next_p != 0; ++next_p ) m_append( *next_p );

- return *this;

- }

-

-# ifndef BOOST_NO_MEMBER_TEMPLATES

- template<class String, class Traits> template <class InputIterator>

- basic_path<String, Traits> & basic_path<String, Traits>::append(

- InputIterator first, InputIterator last )

- {

- // append slash<path_type>::value if needed

- if ( !empty() && first != last

- && !detail::is_separator<path_type>( *first ) )

- { m_append_separator_if_needed(); }

-

- // song-and-dance to avoid violating InputIterator requirements

- // (which prohibit lookahead) in detecting a possible escape sequence

- // (escape sequences are simply ignored on POSIX and Windows)

- bool was_escape_sequence(true);

- std::size_t append_count(0);

- typename String::size_type initial_pos( m_path.size() );

-

- for ( ; first != last && *first; ++first )

- {

- if ( append_count == 0 && *first != slash<path_type>::value )

- was_escape_sequence = false;

- if ( append_count == 1 && *first != slash<path_type>::value )

- was_escape_sequence = false;

- if ( append_count == 2 && *first != colon<path_type>::value )

- was_escape_sequence = false;

- m_append( *first );

- ++append_count;

- }

-

- // erase escape sequence if any

- if ( was_escape_sequence && append_count >= 3 )

- m_path.erase( initial_pos, 3 );

-

- return *this;

- }

-# endif

-

-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED

-

- // canonize ------------------------------------------------------------//

-

- template<class String, class Traits>

- basic_path<String, Traits> & basic_path<String, Traits>::canonize()

- {

- static const typename string_type::value_type dot_str[]

- = { dot<path_type>::value, 0 };

-

- if ( m_path.empty() ) return *this;

-

- path_type temp;

-

- for ( iterator itr( begin() ); itr != end(); ++itr )

- {

- temp /= *itr;

- };

-

- if ( temp.empty() ) temp /= dot_str;

- m_path = temp.m_path;

- return *this;

- }

-

- // normalize ------------------------------------------------------------//

-

- template<class String, class Traits>

- basic_path<String, Traits> & basic_path<String, Traits>::normalize()

- {

- static const typename string_type::value_type dot_str[]

- = { dot<path_type>::value, 0 };

-

- if ( m_path.empty() ) return *this;

-

- path_type temp;

- iterator start( begin() );

- iterator last( end() );

- iterator stop( last-- );

- for ( iterator itr( start ); itr != stop; ++itr )

- {

- // ignore "." except at start and last

- if ( itr->size() == 1

- && (*itr)[0] == dot<path_type>::value

- && itr != start

- && itr != last ) continue;

-

- // ignore a name and following ".."

- if ( !temp.empty()

- && itr->size() == 2

- && (*itr)[0] == dot<path_type>::value

- && (*itr)[1] == dot<path_type>::value ) // dot dot

- {

- string_type lf( temp.filename() );

- if ( lf.size() > 0

- && (lf.size() != 1

- || (lf[0] != dot<path_type>::value

- && lf[0] != slash<path_type>::value))

- && (lf.size() != 2

- || (lf[0] != dot<path_type>::value

- && lf[1] != dot<path_type>::value

-# ifdef BOOST_WINDOWS_PATH

- && lf[1] != colon<path_type>::value

-# endif

- )

- )

- )

- {

- temp.remove_filename();

- // if not root directory, must also remove "/" if any

- if ( temp.m_path.size() > 0

- && temp.m_path[temp.m_path.size()-1]

- == slash<path_type>::value )

- {

- typename string_type::size_type rds(

- detail::root_directory_start<String,Traits>( temp.m_path,

- temp.m_path.size() ) );

- if ( rds == string_type::npos

- || rds != temp.m_path.size()-1 )

- { temp.m_path.erase( temp.m_path.size()-1 ); }

- }

-

- iterator next( itr );

- if ( temp.empty() && ++next != stop

- && next == last && *last == dot_str ) temp /= dot_str;

- continue;

- }

- }

-

- temp /= *itr;

- };

-

- if ( temp.empty() ) temp /= dot_str;

- m_path = temp.m_path;

- return *this;

- }

- // modifiers ------------------------------------------------------------//

-

- template<class String, class Traits>

- basic_path<String, Traits> & basic_path<String, Traits>::remove_filename()

- {

- m_path.erase(

- detail::filename_pos<String, Traits>( m_path, m_path.size() ) );

- return *this;

- }

-

- template<class String, class Traits>

- basic_path<String, Traits> &

- basic_path<String, Traits>::replace_extension( const string_type & new_ext )

- {

- // erase existing extension if any

- string_type old_ext = extension();

- if ( !old_ext.empty() )

- m_path.erase( m_path.size() - old_ext.size() );

-

- if ( !new_ext.empty() && new_ext[0] != dot<path_type>::value )

- m_path += dot<path_type>::value;

-

- m_path += new_ext;

-

- return *this;

- }

-

-

- // path conversion functions --------------------------------------------//

-

- template<class String, class Traits>

- const String

- basic_path<String, Traits>::file_string() const

- {

-# ifdef BOOST_WINDOWS_PATH

- // for Windows, use the alternate separator, and bypass extra

- // root separators

-

- typename string_type::size_type root_dir_start(

- detail::root_directory_start<String, Traits>( m_path, m_path.size() ) );

- bool in_root( root_dir_start != string_type::npos );

- String s;

- for ( typename string_type::size_type pos( 0 );

- pos != m_path.size(); ++pos )

- {

- // special case // [net]

- if ( pos == 0 && m_path.size() > 1

- && m_path[0] == slash<path_type>::value

- && m_path[1] == slash<path_type>::value

- && ( m_path.size() == 2

- || !detail::is_separator<path_type>( m_path[2] )

- ) )

- {

- ++pos;

- s += path_alt_separator<path_type>::value;

- s += path_alt_separator<path_type>::value;

- continue;

- }

-

- // bypass extra root separators

- if ( in_root )

- {

- if ( s.size() > 0

- && s[s.size()-1] == path_alt_separator<path_type>::value

- && m_path[pos] == slash<path_type>::value

- ) continue;

- }

-

- if ( m_path[pos] == slash<path_type>::value )

- s += path_alt_separator<path_type>::value;

- else

- s += m_path[pos];

-

- if ( pos > root_dir_start

- && m_path[pos] == slash<path_type>::value )

- { in_root = false; }

- }

-# ifdef BOOST_CYGWIN_PATH

- if ( m_cygwin_root ) s[0] = slash<path_type>::value;

-# endif

- return s;

-# else

- return m_path;

-# endif

- }

-

- // iterator functions ---------------------------------------------------//

-

- template<class String, class Traits>

- typename basic_path<String, Traits>::iterator basic_path<String, Traits>::begin() const

- {

- iterator itr;

- itr.m_path_ptr = this;

- typename string_type::size_type element_size;

- detail::first_element<String, Traits>( m_path, itr.m_pos, element_size );

- itr.m_name = m_path.substr( itr.m_pos, element_size );

- return itr;

- }

-

- template<class String, class Traits>

- typename basic_path<String, Traits>::iterator basic_path<String, Traits>::end() const

- {

- iterator itr;

- itr.m_path_ptr = this;

- itr.m_pos = m_path.size();

- return itr;

- }

-

- namespace detail

- {

- // do_increment ------------------------------------------------------//

-

- template<class Path>

- void iterator_helper<Path>::do_increment( iterator & itr )

- {

- typedef typename Path::string_type string_type;

- typedef typename Path::traits_type traits_type;

-

- assert( itr.m_pos < itr.m_path_ptr->m_path.size() && "basic_path::iterator increment past end()" );

-

- bool was_net( itr.m_name.size() > 2

- && itr.m_name[0] == slash<Path>::value

- && itr.m_name[1] == slash<Path>::value

- && itr.m_name[2] != slash<Path>::value );

-

- // increment to position past current element

- itr.m_pos += itr.m_name.size();

-

- // if end reached, create end iterator

- if ( itr.m_pos == itr.m_path_ptr->m_path.size() )

- {

- itr.m_name.erase( itr.m_name.begin(), itr.m_name.end() ); // VC++ 6.0 lib didn't supply clear()

- return;

- }

-

- // process separator (Windows drive spec is only case not a separator)

- if ( itr.m_path_ptr->m_path[itr.m_pos] == slash<Path>::value )

- {

- // detect root directory

- if ( was_net

- # ifdef BOOST_WINDOWS_PATH

- // case "c:/"

- || itr.m_name[itr.m_name.size()-1] == colon<Path>::value

- # endif

- )

- {

- itr.m_name = slash<Path>::value;

- return;

- }

-

- // bypass separators

- while ( itr.m_pos != itr.m_path_ptr->m_path.size()

- && itr.m_path_ptr->m_path[itr.m_pos] == slash<Path>::value )

- { ++itr.m_pos; }

-

- // detect trailing separator, and treat it as ".", per POSIX spec

- if ( itr.m_pos == itr.m_path_ptr->m_path.size()

- && detail::is_non_root_slash< string_type, traits_type >(

- itr.m_path_ptr->m_path, itr.m_pos-1 ) )

- {

- --itr.m_pos;

- itr.m_name = dot<Path>::value;

- return;

- }

- }

-

- // get next element

- typename string_type::size_type end_pos(

- itr.m_path_ptr->m_path.find( slash<Path>::value, itr.m_pos ) );

- itr.m_name = itr.m_path_ptr->m_path.substr( itr.m_pos, end_pos - itr.m_pos );

- }

-

- // do_decrement ------------------------------------------------------//

-

- template<class Path>

- void iterator_helper<Path>::do_decrement( iterator & itr )

- {

- assert( itr.m_pos && "basic_path::iterator decrement past begin()" );

-

- typedef typename Path::string_type string_type;

- typedef typename Path::traits_type traits_type;

-

- typename string_type::size_type end_pos( itr.m_pos );

-

- typename string_type::size_type root_dir_pos(

- detail::root_directory_start<string_type, traits_type>(

- itr.m_path_ptr->m_path, end_pos ) );

-

- // if at end and there was a trailing non-root '/', return "."

- if ( itr.m_pos == itr.m_path_ptr->m_path.size()

- && itr.m_path_ptr->m_path.size() > 1

- && itr.m_path_ptr->m_path[itr.m_pos-1] == slash<Path>::value

- && detail::is_non_root_slash< string_type, traits_type >(

- itr.m_path_ptr->m_path, itr.m_pos-1 )

- )

- {

- --itr.m_pos;

- itr.m_name = dot<Path>::value;

- return;

- }

-

- // skip separators unless root directory

- for (

- ;

- end_pos > 0

- && (end_pos-1) != root_dir_pos

- && itr.m_path_ptr->m_path[end_pos-1] == slash<Path>::value

- ;

- --end_pos ) {}

-

- itr.m_pos = detail::filename_pos<string_type, traits_type>

- ( itr.m_path_ptr->m_path, end_pos );

- itr.m_name = itr.m_path_ptr->m_path.substr( itr.m_pos, end_pos - itr.m_pos );

- }

- } // namespace detail

-

- // basic_filesystem_error implementation --------------------------------//

-

- template<class Path>

- basic_filesystem_error<Path>::basic_filesystem_error(

- const std::string & what_arg, system::error_code ec )

- : system::system_error(ec, what_arg)

- {

- try

- {

- m_imp_ptr.reset( new m_imp );

- }

- catch (...) { m_imp_ptr.reset(); }

- }

-

- template<class Path>

- basic_filesystem_error<Path>::basic_filesystem_error(

- const std::string & what_arg, const path_type & path1_arg,

- system::error_code ec )

- : system::system_error(ec, what_arg)

- {

- try

- {

- m_imp_ptr.reset( new m_imp );

- m_imp_ptr->m_path1 = path1_arg;

- }

- catch (...) { m_imp_ptr.reset(); }

- }

-

- template<class Path>

- basic_filesystem_error<Path>::basic_filesystem_error(

- const std::string & what_arg, const path_type & path1_arg,

- const path_type & path2_arg, system::error_code ec )

- : system::system_error(ec, what_arg)

- {

- try

- {

- m_imp_ptr.reset( new m_imp );

- m_imp_ptr->m_path1 = path1_arg;

- m_imp_ptr->m_path2 = path2_arg;

- }

- catch (...) { m_imp_ptr.reset(); }

- }

-

- } // namespace BOOST_FILESYSTEM_NAMESPACE

-} // namespace boost

-

-#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas

-

-#endif // BOOST_FILESYSTEM_PATH_HPP