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-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/copy_options.h69
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/directory_entry.h435
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/directory_iterator.h151
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/directory_options.h57
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/file_status.h67
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/file_time_type.h31
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/file_type.h42
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/filesystem_error.h88
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/operations.h310
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/path.h931
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/path_iterator.h115
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/perm_options.h57
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/perms.h80
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/recursive_directory_iterator.h164
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/space_info.h38
-rw-r--r--contrib/llvm-project/libcxx/include/__filesystem/u8path.h100
16 files changed, 2735 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/copy_options.h b/contrib/llvm-project/libcxx/include/__filesystem/copy_options.h
new file mode 100644
index 000000000000..097eebe61137
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/copy_options.h
@@ -0,0 +1,69 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_COPY_OPTIONS_H
+#define _LIBCPP___FILESYSTEM_COPY_OPTIONS_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+enum class copy_options : unsigned short {
+ none = 0,
+ skip_existing = 1,
+ overwrite_existing = 2,
+ update_existing = 4,
+ recursive = 8,
+ copy_symlinks = 16,
+ skip_symlinks = 32,
+ directories_only = 64,
+ create_symlinks = 128,
+ create_hard_links = 256,
+ __in_recursive_copy = 512,
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr copy_options operator&(copy_options __lhs, copy_options __rhs) {
+ return static_cast<copy_options>(static_cast<unsigned short>(__lhs) & static_cast<unsigned short>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr copy_options operator|(copy_options __lhs, copy_options __rhs) {
+ return static_cast<copy_options>(static_cast<unsigned short>(__lhs) | static_cast<unsigned short>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr copy_options operator^(copy_options __lhs, copy_options __rhs) {
+ return static_cast<copy_options>(static_cast<unsigned short>(__lhs) ^ static_cast<unsigned short>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr copy_options operator~(copy_options __lhs) {
+ return static_cast<copy_options>(~static_cast<unsigned short>(__lhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline copy_options& operator&=(copy_options& __lhs, copy_options __rhs) {
+ return __lhs = __lhs & __rhs;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline copy_options& operator|=(copy_options& __lhs, copy_options __rhs) {
+ return __lhs = __lhs | __rhs;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline copy_options& operator^=(copy_options& __lhs, copy_options __rhs) {
+ return __lhs = __lhs ^ __rhs;
+}
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_COPY_OPTIONS_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/directory_entry.h b/contrib/llvm-project/libcxx/include/__filesystem/directory_entry.h
new file mode 100644
index 000000000000..96d88dcd90b4
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/directory_entry.h
@@ -0,0 +1,435 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_DIRECTORY_ENTRY_H
+#define _LIBCPP___FILESYSTEM_DIRECTORY_ENTRY_H
+
+#include <__chrono/time_point.h>
+#include <__compare/ordering.h>
+#include <__config>
+#include <__filesystem/file_status.h>
+#include <__filesystem/file_time_type.h>
+#include <__filesystem/file_type.h>
+#include <__filesystem/filesystem_error.h>
+#include <__filesystem/operations.h>
+#include <__filesystem/path.h>
+#include <__filesystem/perms.h>
+#include <__system_error/errc.h>
+#include <__system_error/error_code.h>
+#include <__utility/move.h>
+#include <__utility/unreachable.h>
+#include <cstdint>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#if _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_PUSH
+
+class directory_entry {
+ typedef filesystem::path _Path;
+
+public:
+ // constructors and destructors
+ _LIBCPP_HIDE_FROM_ABI directory_entry() noexcept = default;
+ _LIBCPP_HIDE_FROM_ABI directory_entry(directory_entry const&) = default;
+ _LIBCPP_HIDE_FROM_ABI directory_entry(directory_entry&&) noexcept = default;
+
+ _LIBCPP_HIDE_FROM_ABI explicit directory_entry(_Path const& __p) : __p_(__p) {
+ error_code __ec;
+ __refresh(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI directory_entry(_Path const& __p, error_code& __ec) : __p_(__p) { __refresh(&__ec); }
+
+ _LIBCPP_HIDE_FROM_ABI ~directory_entry() {}
+
+ _LIBCPP_HIDE_FROM_ABI directory_entry& operator=(directory_entry const&) = default;
+ _LIBCPP_HIDE_FROM_ABI directory_entry& operator=(directory_entry&&) noexcept = default;
+
+ _LIBCPP_HIDE_FROM_ABI void assign(_Path const& __p) {
+ __p_ = __p;
+ error_code __ec;
+ __refresh(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void assign(_Path const& __p, error_code& __ec) {
+ __p_ = __p;
+ __refresh(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void replace_filename(_Path const& __p) {
+ __p_.replace_filename(__p);
+ error_code __ec;
+ __refresh(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void replace_filename(_Path const& __p, error_code& __ec) {
+ __p_ = __p_.parent_path() / __p;
+ __refresh(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void refresh() { __refresh(); }
+
+ _LIBCPP_HIDE_FROM_ABI void refresh(error_code& __ec) noexcept { __refresh(&__ec); }
+
+ _LIBCPP_HIDE_FROM_ABI _Path const& path() const noexcept { return __p_; }
+
+ _LIBCPP_HIDE_FROM_ABI operator const _Path&() const noexcept { return __p_; }
+
+ _LIBCPP_HIDE_FROM_ABI bool exists() const { return filesystem::exists(file_status{__get_ft()}); }
+
+ _LIBCPP_HIDE_FROM_ABI bool exists(error_code& __ec) const noexcept {
+ return filesystem::exists(file_status{__get_ft(&__ec)});
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_block_file() const { return __get_ft() == file_type::block; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_block_file(error_code& __ec) const noexcept {
+ return __get_ft(&__ec) == file_type::block;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_character_file() const { return __get_ft() == file_type::character; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_character_file(error_code& __ec) const noexcept {
+ return __get_ft(&__ec) == file_type::character;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_directory() const { return __get_ft() == file_type::directory; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_directory(error_code& __ec) const noexcept {
+ return __get_ft(&__ec) == file_type::directory;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_fifo() const { return __get_ft() == file_type::fifo; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_fifo(error_code& __ec) const noexcept { return __get_ft(&__ec) == file_type::fifo; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_other() const { return filesystem::is_other(file_status{__get_ft()}); }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_other(error_code& __ec) const noexcept {
+ return filesystem::is_other(file_status{__get_ft(&__ec)});
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_regular_file() const { return __get_ft() == file_type::regular; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_regular_file(error_code& __ec) const noexcept {
+ return __get_ft(&__ec) == file_type::regular;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_socket() const { return __get_ft() == file_type::socket; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_socket(error_code& __ec) const noexcept { return __get_ft(&__ec) == file_type::socket; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_symlink() const { return __get_sym_ft() == file_type::symlink; }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_symlink(error_code& __ec) const noexcept {
+ return __get_sym_ft(&__ec) == file_type::symlink;
+ }
+ _LIBCPP_HIDE_FROM_ABI uintmax_t file_size() const { return __get_size(); }
+
+ _LIBCPP_HIDE_FROM_ABI uintmax_t file_size(error_code& __ec) const noexcept { return __get_size(&__ec); }
+
+ _LIBCPP_HIDE_FROM_ABI uintmax_t hard_link_count() const { return __get_nlink(); }
+
+ _LIBCPP_HIDE_FROM_ABI uintmax_t hard_link_count(error_code& __ec) const noexcept { return __get_nlink(&__ec); }
+
+ _LIBCPP_HIDE_FROM_ABI file_time_type last_write_time() const { return __get_write_time(); }
+
+ _LIBCPP_HIDE_FROM_ABI file_time_type last_write_time(error_code& __ec) const noexcept {
+ return __get_write_time(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI file_status status() const { return __get_status(); }
+
+ _LIBCPP_HIDE_FROM_ABI file_status status(error_code& __ec) const noexcept { return __get_status(&__ec); }
+
+ _LIBCPP_HIDE_FROM_ABI file_status symlink_status() const { return __get_symlink_status(); }
+
+ _LIBCPP_HIDE_FROM_ABI file_status symlink_status(error_code& __ec) const noexcept {
+ return __get_symlink_status(&__ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI bool operator==(directory_entry const& __rhs) const noexcept { return __p_ == __rhs.__p_; }
+
+# if _LIBCPP_STD_VER <= 17
+ _LIBCPP_HIDE_FROM_ABI bool operator!=(directory_entry const& __rhs) const noexcept { return __p_ != __rhs.__p_; }
+
+ _LIBCPP_HIDE_FROM_ABI bool operator<(directory_entry const& __rhs) const noexcept { return __p_ < __rhs.__p_; }
+
+ _LIBCPP_HIDE_FROM_ABI bool operator<=(directory_entry const& __rhs) const noexcept { return __p_ <= __rhs.__p_; }
+
+ _LIBCPP_HIDE_FROM_ABI bool operator>(directory_entry const& __rhs) const noexcept { return __p_ > __rhs.__p_; }
+
+ _LIBCPP_HIDE_FROM_ABI bool operator>=(directory_entry const& __rhs) const noexcept { return __p_ >= __rhs.__p_; }
+
+# else // _LIBCPP_STD_VER <= 17
+
+ _LIBCPP_HIDE_FROM_ABI strong_ordering operator<=>(const directory_entry& __rhs) const noexcept {
+ return __p_ <=> __rhs.__p_;
+ }
+
+# endif // _LIBCPP_STD_VER <= 17
+
+ template <class _CharT, class _Traits>
+ _LIBCPP_HIDE_FROM_ABI friend basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __os, const directory_entry& __d) {
+ return __os << __d.path();
+ }
+
+private:
+ friend class directory_iterator;
+ friend class recursive_directory_iterator;
+ friend class _LIBCPP_HIDDEN __dir_stream;
+
+ enum _CacheType : unsigned char {
+ _Empty,
+ _IterSymlink,
+ _IterNonSymlink,
+ _RefreshSymlink,
+ _RefreshSymlinkUnresolved,
+ _RefreshNonSymlink
+ };
+
+ struct __cached_data {
+ uintmax_t __size_;
+ uintmax_t __nlink_;
+ file_time_type __write_time_;
+ perms __sym_perms_;
+ perms __non_sym_perms_;
+ file_type __type_;
+ _CacheType __cache_type_;
+
+ _LIBCPP_HIDE_FROM_ABI __cached_data() noexcept { __reset(); }
+
+ _LIBCPP_HIDE_FROM_ABI void __reset() {
+ __cache_type_ = _Empty;
+ __type_ = file_type::none;
+ __sym_perms_ = __non_sym_perms_ = perms::unknown;
+ __size_ = __nlink_ = uintmax_t(-1);
+ __write_time_ = file_time_type::min();
+ }
+ };
+
+ _LIBCPP_HIDE_FROM_ABI static __cached_data __create_iter_result(file_type __ft) {
+ __cached_data __data;
+ __data.__type_ = __ft;
+ __data.__cache_type_ = [&]() {
+ switch (__ft) {
+ case file_type::none:
+ return _Empty;
+ case file_type::symlink:
+ return _IterSymlink;
+ default:
+ return _IterNonSymlink;
+ }
+ }();
+ return __data;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void __assign_iter_entry(_Path&& __p, __cached_data __dt) {
+ __p_ = std::move(__p);
+ __data_ = __dt;
+ }
+
+ _LIBCPP_EXPORTED_FROM_ABI error_code __do_refresh() noexcept;
+
+ _LIBCPP_HIDE_FROM_ABI static bool __is_dne_error(error_code const& __ec) {
+ if (!__ec)
+ return true;
+ switch (static_cast<errc>(__ec.value())) {
+ case errc::no_such_file_or_directory:
+ case errc::not_a_directory:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void
+ __handle_error(const char* __msg, error_code* __dest_ec, error_code const& __ec, bool __allow_dne = false) const {
+ if (__dest_ec) {
+ *__dest_ec = __ec;
+ return;
+ }
+ if (__ec && (!__allow_dne || !__is_dne_error(__ec)))
+ __throw_filesystem_error(__msg, __p_, __ec);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void __refresh(error_code* __ec = nullptr) {
+ __handle_error("in directory_entry::refresh",
+ __ec,
+ __do_refresh(),
+ /*allow_dne*/ true);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI file_type __get_sym_ft(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ return __symlink_status(__p_, __ec).type();
+ case _IterSymlink:
+ case _RefreshSymlink:
+ case _RefreshSymlinkUnresolved:
+ if (__ec)
+ __ec->clear();
+ return file_type::symlink;
+ case _IterNonSymlink:
+ case _RefreshNonSymlink:
+ file_status __st(__data_.__type_);
+ if (__ec && !filesystem::exists(__st))
+ *__ec = make_error_code(errc::no_such_file_or_directory);
+ else if (__ec)
+ __ec->clear();
+ return __data_.__type_;
+ }
+ __libcpp_unreachable();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI file_type __get_ft(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ case _IterSymlink:
+ case _RefreshSymlinkUnresolved:
+ return __status(__p_, __ec).type();
+ case _IterNonSymlink:
+ case _RefreshNonSymlink:
+ case _RefreshSymlink: {
+ file_status __st(__data_.__type_);
+ if (__ec && !filesystem::exists(__st))
+ *__ec = make_error_code(errc::no_such_file_or_directory);
+ else if (__ec)
+ __ec->clear();
+ return __data_.__type_;
+ }
+ }
+ __libcpp_unreachable();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI file_status __get_status(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ case _IterNonSymlink:
+ case _IterSymlink:
+ case _RefreshSymlinkUnresolved:
+ return __status(__p_, __ec);
+ case _RefreshNonSymlink:
+ case _RefreshSymlink:
+ return file_status(__get_ft(__ec), __data_.__non_sym_perms_);
+ }
+ __libcpp_unreachable();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI file_status __get_symlink_status(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ case _IterNonSymlink:
+ case _IterSymlink:
+ return __symlink_status(__p_, __ec);
+ case _RefreshNonSymlink:
+ return file_status(__get_sym_ft(__ec), __data_.__non_sym_perms_);
+ case _RefreshSymlink:
+ case _RefreshSymlinkUnresolved:
+ return file_status(__get_sym_ft(__ec), __data_.__sym_perms_);
+ }
+ __libcpp_unreachable();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI uintmax_t __get_size(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ case _IterNonSymlink:
+ case _IterSymlink:
+ case _RefreshSymlinkUnresolved:
+ return filesystem::__file_size(__p_, __ec);
+ case _RefreshSymlink:
+ case _RefreshNonSymlink: {
+ error_code __m_ec;
+ file_status __st(__get_ft(&__m_ec));
+ __handle_error("in directory_entry::file_size", __ec, __m_ec);
+ if (filesystem::exists(__st) && !filesystem::is_regular_file(__st)) {
+ errc __err_kind = filesystem::is_directory(__st) ? errc::is_a_directory : errc::not_supported;
+ __handle_error("in directory_entry::file_size", __ec, make_error_code(__err_kind));
+ }
+ return __data_.__size_;
+ }
+ }
+ __libcpp_unreachable();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI uintmax_t __get_nlink(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ case _IterNonSymlink:
+ case _IterSymlink:
+ case _RefreshSymlinkUnresolved:
+ return filesystem::__hard_link_count(__p_, __ec);
+ case _RefreshSymlink:
+ case _RefreshNonSymlink: {
+ error_code __m_ec;
+ (void)__get_ft(&__m_ec);
+ __handle_error("in directory_entry::hard_link_count", __ec, __m_ec);
+ return __data_.__nlink_;
+ }
+ }
+ __libcpp_unreachable();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI file_time_type __get_write_time(error_code* __ec = nullptr) const {
+ switch (__data_.__cache_type_) {
+ case _Empty:
+ case _IterNonSymlink:
+ case _IterSymlink:
+ case _RefreshSymlinkUnresolved:
+ return filesystem::__last_write_time(__p_, __ec);
+ case _RefreshSymlink:
+ case _RefreshNonSymlink: {
+ error_code __m_ec;
+ file_status __st(__get_ft(&__m_ec));
+ __handle_error("in directory_entry::last_write_time", __ec, __m_ec);
+ if (filesystem::exists(__st) && __data_.__write_time_ == file_time_type::min())
+ __handle_error("in directory_entry::last_write_time", __ec, make_error_code(errc::value_too_large));
+ return __data_.__write_time_;
+ }
+ }
+ __libcpp_unreachable();
+ }
+
+private:
+ _Path __p_;
+ __cached_data __data_;
+};
+
+class __dir_element_proxy {
+public:
+ inline _LIBCPP_HIDE_FROM_ABI directory_entry operator*() { return std::move(__elem_); }
+
+private:
+ friend class directory_iterator;
+ friend class recursive_directory_iterator;
+ _LIBCPP_HIDE_FROM_ABI explicit __dir_element_proxy(directory_entry const& __e) : __elem_(__e) {}
+ _LIBCPP_HIDE_FROM_ABI __dir_element_proxy(__dir_element_proxy&& __o) : __elem_(std::move(__o.__elem_)) {}
+ directory_entry __elem_;
+};
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_POP
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___FILESYSTEM_DIRECTORY_ENTRY_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/directory_iterator.h b/contrib/llvm-project/libcxx/include/__filesystem/directory_iterator.h
new file mode 100644
index 000000000000..e0246d8001e1
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/directory_iterator.h
@@ -0,0 +1,151 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_DIRECTORY_ITERATOR_H
+#define _LIBCPP___FILESYSTEM_DIRECTORY_ITERATOR_H
+
+#include <__assert>
+#include <__config>
+#include <__filesystem/directory_entry.h>
+#include <__filesystem/directory_options.h>
+#include <__filesystem/path.h>
+#include <__iterator/default_sentinel.h>
+#include <__iterator/iterator_traits.h>
+#include <__memory/shared_ptr.h>
+#include <__ranges/enable_borrowed_range.h>
+#include <__ranges/enable_view.h>
+#include <__system_error/error_code.h>
+#include <__utility/move.h>
+#include <cstddef>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#if _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_PUSH
+
+class _LIBCPP_HIDDEN __dir_stream;
+class directory_iterator {
+public:
+ typedef directory_entry value_type;
+ typedef ptrdiff_t difference_type;
+ typedef value_type const* pointer;
+ typedef value_type const& reference;
+ typedef input_iterator_tag iterator_category;
+
+public:
+ // ctor & dtor
+ _LIBCPP_HIDE_FROM_ABI directory_iterator() noexcept {}
+
+ _LIBCPP_HIDE_FROM_ABI explicit directory_iterator(const path& __p) : directory_iterator(__p, nullptr) {}
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator(const path& __p, directory_options __opts)
+ : directory_iterator(__p, nullptr, __opts) {}
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator(const path& __p, error_code& __ec) : directory_iterator(__p, &__ec) {}
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator(const path& __p, directory_options __opts, error_code& __ec)
+ : directory_iterator(__p, &__ec, __opts) {}
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator(const directory_iterator&) = default;
+ _LIBCPP_HIDE_FROM_ABI directory_iterator(directory_iterator&&) = default;
+ _LIBCPP_HIDE_FROM_ABI directory_iterator& operator=(const directory_iterator&) = default;
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator& operator=(directory_iterator&& __o) noexcept {
+ // non-default implementation provided to support self-move assign.
+ if (this != &__o) {
+ __imp_ = std::move(__o.__imp_);
+ }
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI ~directory_iterator() = default;
+
+ _LIBCPP_HIDE_FROM_ABI const directory_entry& operator*() const {
+ // Note: this check duplicates a check in `__dereference()`.
+ _LIBCPP_ASSERT_NON_NULL(__imp_, "The end iterator cannot be dereferenced");
+ return __dereference();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI const directory_entry* operator->() const { return &**this; }
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator& operator++() { return __increment(); }
+
+ _LIBCPP_HIDE_FROM_ABI __dir_element_proxy operator++(int) {
+ __dir_element_proxy __p(**this);
+ __increment();
+ return __p;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI directory_iterator& increment(error_code& __ec) { return __increment(&__ec); }
+
+# if _LIBCPP_STD_VER >= 20
+
+ _LIBCPP_HIDE_FROM_ABI bool operator==(default_sentinel_t) const noexcept { return *this == directory_iterator(); }
+
+# endif
+
+private:
+ inline _LIBCPP_HIDE_FROM_ABI friend bool
+ operator==(const directory_iterator& __lhs, const directory_iterator& __rhs) noexcept;
+
+ // construct the dir_stream
+ _LIBCPP_EXPORTED_FROM_ABI directory_iterator(const path&, error_code*, directory_options = directory_options::none);
+
+ _LIBCPP_EXPORTED_FROM_ABI directory_iterator& __increment(error_code* __ec = nullptr);
+
+ _LIBCPP_EXPORTED_FROM_ABI const directory_entry& __dereference() const;
+
+private:
+ shared_ptr<__dir_stream> __imp_;
+};
+
+inline _LIBCPP_HIDE_FROM_ABI bool
+operator==(const directory_iterator& __lhs, const directory_iterator& __rhs) noexcept {
+ return __lhs.__imp_ == __rhs.__imp_;
+}
+
+inline _LIBCPP_HIDE_FROM_ABI bool
+operator!=(const directory_iterator& __lhs, const directory_iterator& __rhs) noexcept {
+ return !(__lhs == __rhs);
+}
+
+// enable directory_iterator range-based for statements
+inline _LIBCPP_HIDE_FROM_ABI directory_iterator begin(directory_iterator __iter) noexcept { return __iter; }
+
+inline _LIBCPP_HIDE_FROM_ABI directory_iterator end(directory_iterator) noexcept { return directory_iterator(); }
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_POP
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+# if _LIBCPP_STD_VER >= 20
+
+template <>
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY inline constexpr bool
+ std::ranges::enable_borrowed_range<std::filesystem::directory_iterator> = true;
+
+template <>
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY inline constexpr bool
+ std::ranges::enable_view<std::filesystem::directory_iterator> = true;
+
+# endif // _LIBCPP_STD_VER >= 20
+
+#endif // _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___FILESYSTEM_DIRECTORY_ITERATOR_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/directory_options.h b/contrib/llvm-project/libcxx/include/__filesystem/directory_options.h
new file mode 100644
index 000000000000..d0cd3ebfdaa7
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/directory_options.h
@@ -0,0 +1,57 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_DIRECTORY_OPTIONS_H
+#define _LIBCPP___FILESYSTEM_DIRECTORY_OPTIONS_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+enum class directory_options : unsigned char { none = 0, follow_directory_symlink = 1, skip_permission_denied = 2 };
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr directory_options operator&(directory_options __lhs, directory_options __rhs) {
+ return static_cast<directory_options>(static_cast<unsigned char>(__lhs) & static_cast<unsigned char>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr directory_options operator|(directory_options __lhs, directory_options __rhs) {
+ return static_cast<directory_options>(static_cast<unsigned char>(__lhs) | static_cast<unsigned char>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr directory_options operator^(directory_options __lhs, directory_options __rhs) {
+ return static_cast<directory_options>(static_cast<unsigned char>(__lhs) ^ static_cast<unsigned char>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr directory_options operator~(directory_options __lhs) {
+ return static_cast<directory_options>(~static_cast<unsigned char>(__lhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline directory_options& operator&=(directory_options& __lhs, directory_options __rhs) {
+ return __lhs = __lhs & __rhs;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline directory_options& operator|=(directory_options& __lhs, directory_options __rhs) {
+ return __lhs = __lhs | __rhs;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline directory_options& operator^=(directory_options& __lhs, directory_options __rhs) {
+ return __lhs = __lhs ^ __rhs;
+}
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_DIRECTORY_OPTIONS_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/file_status.h b/contrib/llvm-project/libcxx/include/__filesystem/file_status.h
new file mode 100644
index 000000000000..da316c8b0274
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/file_status.h
@@ -0,0 +1,67 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_FILE_STATUS_H
+#define _LIBCPP___FILESYSTEM_FILE_STATUS_H
+
+#include <__config>
+#include <__filesystem/file_type.h>
+#include <__filesystem/perms.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+class _LIBCPP_EXPORTED_FROM_ABI file_status {
+public:
+ // constructors
+ _LIBCPP_HIDE_FROM_ABI file_status() noexcept : file_status(file_type::none) {}
+ _LIBCPP_HIDE_FROM_ABI explicit file_status(file_type __ft, perms __prms = perms::unknown) noexcept
+ : __ft_(__ft), __prms_(__prms) {}
+
+ _LIBCPP_HIDE_FROM_ABI file_status(const file_status&) noexcept = default;
+ _LIBCPP_HIDE_FROM_ABI file_status(file_status&&) noexcept = default;
+
+ _LIBCPP_HIDE_FROM_ABI ~file_status() {}
+
+ _LIBCPP_HIDE_FROM_ABI file_status& operator=(const file_status&) noexcept = default;
+ _LIBCPP_HIDE_FROM_ABI file_status& operator=(file_status&&) noexcept = default;
+
+ // observers
+ _LIBCPP_HIDE_FROM_ABI file_type type() const noexcept { return __ft_; }
+
+ _LIBCPP_HIDE_FROM_ABI perms permissions() const noexcept { return __prms_; }
+
+ // modifiers
+ _LIBCPP_HIDE_FROM_ABI void type(file_type __ft) noexcept { __ft_ = __ft; }
+
+ _LIBCPP_HIDE_FROM_ABI void permissions(perms __p) noexcept { __prms_ = __p; }
+
+# if _LIBCPP_STD_VER >= 20
+
+ _LIBCPP_HIDE_FROM_ABI friend bool operator==(const file_status& __lhs, const file_status& __rhs) noexcept {
+ return __lhs.type() == __rhs.type() && __lhs.permissions() == __rhs.permissions();
+ }
+
+# endif
+
+private:
+ file_type __ft_;
+ perms __prms_;
+};
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_FILE_STATUS_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/file_time_type.h b/contrib/llvm-project/libcxx/include/__filesystem/file_time_type.h
new file mode 100644
index 000000000000..63e4ae1578cf
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/file_time_type.h
@@ -0,0 +1,31 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_FILE_TIME_TYPE_H
+#define _LIBCPP___FILESYSTEM_FILE_TIME_TYPE_H
+
+#include <__chrono/file_clock.h>
+#include <__chrono/time_point.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+typedef chrono::time_point<_FilesystemClock> file_time_type;
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_FILE_TIME_TYPE_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/file_type.h b/contrib/llvm-project/libcxx/include/__filesystem/file_type.h
new file mode 100644
index 000000000000..e4ac1dfee9ed
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/file_type.h
@@ -0,0 +1,42 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_FILE_TYPE_H
+#define _LIBCPP___FILESYSTEM_FILE_TYPE_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+// On Windows, the library never identifies files as block, character, fifo
+// or socket.
+enum class file_type : signed char {
+ none = 0,
+ not_found = -1,
+ regular = 1,
+ directory = 2,
+ symlink = 3,
+ block = 4,
+ character = 5,
+ fifo = 6,
+ socket = 7,
+ unknown = 8
+};
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_FILE_TYPE_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/filesystem_error.h b/contrib/llvm-project/libcxx/include/__filesystem/filesystem_error.h
new file mode 100644
index 000000000000..80a11e3b1932
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/filesystem_error.h
@@ -0,0 +1,88 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
+#define _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
+
+#include <__config>
+#include <__filesystem/path.h>
+#include <__memory/shared_ptr.h>
+#include <__system_error/error_code.h>
+#include <__system_error/system_error.h>
+#include <__utility/forward.h>
+#include <__verbose_abort>
+#include <string>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+class _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY _LIBCPP_EXPORTED_FROM_ABI filesystem_error : public system_error {
+public:
+ _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, error_code __ec)
+ : system_error(__ec, __what), __storage_(make_shared<_Storage>(path(), path())) {
+ __create_what(0);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, const path& __p1, error_code __ec)
+ : system_error(__ec, __what), __storage_(make_shared<_Storage>(__p1, path())) {
+ __create_what(1);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, const path& __p1, const path& __p2, error_code __ec)
+ : system_error(__ec, __what), __storage_(make_shared<_Storage>(__p1, __p2)) {
+ __create_what(2);
+ }
+
+ _LIBCPP_HIDE_FROM_ABI const path& path1() const noexcept { return __storage_->__p1_; }
+
+ _LIBCPP_HIDE_FROM_ABI const path& path2() const noexcept { return __storage_->__p2_; }
+
+ _LIBCPP_HIDE_FROM_ABI filesystem_error(const filesystem_error&) = default;
+ ~filesystem_error() override; // key function
+
+ _LIBCPP_HIDE_FROM_ABI_VIRTUAL
+ const char* what() const noexcept override { return __storage_->__what_.c_str(); }
+
+ void __create_what(int __num_paths);
+
+private:
+ struct _LIBCPP_HIDDEN _Storage {
+ _LIBCPP_HIDE_FROM_ABI _Storage(const path& __p1, const path& __p2) : __p1_(__p1), __p2_(__p2) {}
+
+ path __p1_;
+ path __p2_;
+ string __what_;
+ };
+ shared_ptr<_Storage> __storage_;
+};
+
+# ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+template <class... _Args>
+_LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY void
+__throw_filesystem_error(_Args&&... __args) {
+ throw filesystem_error(std::forward<_Args>(__args)...);
+}
+# else
+template <class... _Args>
+_LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY void
+__throw_filesystem_error(_Args&&...) {
+ _LIBCPP_VERBOSE_ABORT("filesystem_error was thrown in -fno-exceptions mode");
+}
+# endif
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/operations.h b/contrib/llvm-project/libcxx/include/__filesystem/operations.h
new file mode 100644
index 000000000000..f588189ed1d9
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/operations.h
@@ -0,0 +1,310 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_OPERATIONS_H
+#define _LIBCPP___FILESYSTEM_OPERATIONS_H
+
+#include <__chrono/time_point.h>
+#include <__config>
+#include <__filesystem/copy_options.h>
+#include <__filesystem/file_status.h>
+#include <__filesystem/file_time_type.h>
+#include <__filesystem/file_type.h>
+#include <__filesystem/path.h>
+#include <__filesystem/perm_options.h>
+#include <__filesystem/perms.h>
+#include <__filesystem/space_info.h>
+#include <__system_error/error_code.h>
+#include <cstdint>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_PUSH
+
+_LIBCPP_EXPORTED_FROM_ABI path __absolute(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI path __canonical(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI bool
+__copy_file(const path& __from, const path& __to, copy_options __opt, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void
+__copy_symlink(const path& __existing_symlink, const path& __new_symlink, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void
+__copy(const path& __from, const path& __to, copy_options __opt, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI bool __create_directories(const path&, error_code* = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void
+__create_directory_symlink(const path& __to, const path& __new_symlink, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI bool __create_directory(const path&, error_code* = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI bool __create_directory(const path&, const path& __attributes, error_code* = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void
+__create_hard_link(const path& __to, const path& __new_hard_link, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void
+__create_symlink(const path& __to, const path& __new_symlink, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI path __current_path(error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void __current_path(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI bool __equivalent(const path&, const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI file_status __status(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI uintmax_t __file_size(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI uintmax_t __hard_link_count(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI file_status __symlink_status(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI file_time_type __last_write_time(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void __last_write_time(const path&, file_time_type __new_time, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI path __weakly_canonical(path const& __p, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI path __read_symlink(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI uintmax_t __remove_all(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI bool __remove(const path&, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void __rename(const path& __from, const path& __to, error_code* __ec = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI void __resize_file(const path&, uintmax_t __size, error_code* = nullptr);
+_LIBCPP_EXPORTED_FROM_ABI path __temp_directory_path(error_code* __ec = nullptr);
+
+inline _LIBCPP_HIDE_FROM_ABI path absolute(const path& __p) { return __absolute(__p); }
+inline _LIBCPP_HIDE_FROM_ABI path absolute(const path& __p, error_code& __ec) { return __absolute(__p, &__ec); }
+inline _LIBCPP_HIDE_FROM_ABI path canonical(const path& __p) { return __canonical(__p); }
+inline _LIBCPP_HIDE_FROM_ABI path canonical(const path& __p, error_code& __ec) { return __canonical(__p, &__ec); }
+inline _LIBCPP_HIDE_FROM_ABI bool copy_file(const path& __from, const path& __to) {
+ return __copy_file(__from, __to, copy_options::none);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool copy_file(const path& __from, const path& __to, error_code& __ec) {
+ return __copy_file(__from, __to, copy_options::none, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool copy_file(const path& __from, const path& __to, copy_options __opt) {
+ return __copy_file(__from, __to, __opt);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool
+copy_file(const path& __from, const path& __to, copy_options __opt, error_code& __ec) {
+ return __copy_file(__from, __to, __opt, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void copy_symlink(const path& __from, const path& __to) { __copy_symlink(__from, __to); }
+inline _LIBCPP_HIDE_FROM_ABI void copy_symlink(const path& __from, const path& __to, error_code& __ec) noexcept {
+ __copy_symlink(__from, __to, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void copy(const path& __from, const path& __to) {
+ __copy(__from, __to, copy_options::none);
+}
+inline _LIBCPP_HIDE_FROM_ABI void copy(const path& __from, const path& __to, error_code& __ec) {
+ __copy(__from, __to, copy_options::none, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void copy(const path& __from, const path& __to, copy_options __opt) {
+ __copy(__from, __to, __opt);
+}
+inline _LIBCPP_HIDE_FROM_ABI void copy(const path& __from, const path& __to, copy_options __opt, error_code& __ec) {
+ __copy(__from, __to, __opt, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool create_directories(const path& __p) { return __create_directories(__p); }
+inline _LIBCPP_HIDE_FROM_ABI bool create_directories(const path& __p, error_code& __ec) {
+ return __create_directories(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void create_directory_symlink(const path& __target, const path& __link) {
+ __create_directory_symlink(__target, __link);
+}
+inline _LIBCPP_HIDE_FROM_ABI void
+create_directory_symlink(const path& __target, const path& __link, error_code& __ec) noexcept {
+ __create_directory_symlink(__target, __link, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool create_directory(const path& __p) { return __create_directory(__p); }
+inline _LIBCPP_HIDE_FROM_ABI bool create_directory(const path& __p, error_code& __ec) noexcept {
+ return __create_directory(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool create_directory(const path& __p, const path& __attrs) {
+ return __create_directory(__p, __attrs);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool create_directory(const path& __p, const path& __attrs, error_code& __ec) noexcept {
+ return __create_directory(__p, __attrs, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void create_hard_link(const path& __target, const path& __link) {
+ __create_hard_link(__target, __link);
+}
+inline _LIBCPP_HIDE_FROM_ABI void
+create_hard_link(const path& __target, const path& __link, error_code& __ec) noexcept {
+ __create_hard_link(__target, __link, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void create_symlink(const path& __target, const path& __link) {
+ __create_symlink(__target, __link);
+}
+inline _LIBCPP_HIDE_FROM_ABI void create_symlink(const path& __target, const path& __link, error_code& __ec) noexcept {
+ return __create_symlink(__target, __link, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI path current_path() { return __current_path(); }
+inline _LIBCPP_HIDE_FROM_ABI path current_path(error_code& __ec) { return __current_path(&__ec); }
+inline _LIBCPP_HIDE_FROM_ABI void current_path(const path& __p) { __current_path(__p); }
+inline _LIBCPP_HIDE_FROM_ABI void current_path(const path& __p, error_code& __ec) noexcept {
+ __current_path(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool equivalent(const path& __p1, const path& __p2) { return __equivalent(__p1, __p2); }
+inline _LIBCPP_HIDE_FROM_ABI bool equivalent(const path& __p1, const path& __p2, error_code& __ec) noexcept {
+ return __equivalent(__p1, __p2, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool status_known(file_status __s) noexcept { return __s.type() != file_type::none; }
+inline _LIBCPP_HIDE_FROM_ABI bool exists(file_status __s) noexcept {
+ return status_known(__s) && __s.type() != file_type::not_found;
+}
+inline _LIBCPP_HIDE_FROM_ABI bool exists(const path& __p) { return exists(__status(__p)); }
+
+inline _LIBCPP_HIDE_FROM_ABI bool exists(const path& __p, error_code& __ec) noexcept {
+ auto __s = __status(__p, &__ec);
+ if (status_known(__s))
+ __ec.clear();
+ return exists(__s);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI uintmax_t file_size(const path& __p) { return __file_size(__p); }
+inline _LIBCPP_HIDE_FROM_ABI uintmax_t file_size(const path& __p, error_code& __ec) noexcept {
+ return __file_size(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI uintmax_t hard_link_count(const path& __p) { return __hard_link_count(__p); }
+inline _LIBCPP_HIDE_FROM_ABI uintmax_t hard_link_count(const path& __p, error_code& __ec) noexcept {
+ return __hard_link_count(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_block_file(file_status __s) noexcept { return __s.type() == file_type::block; }
+inline _LIBCPP_HIDE_FROM_ABI bool is_block_file(const path& __p) { return is_block_file(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_block_file(const path& __p, error_code& __ec) noexcept {
+ return is_block_file(__status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_character_file(file_status __s) noexcept {
+ return __s.type() == file_type::character;
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_character_file(const path& __p) { return is_character_file(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_character_file(const path& __p, error_code& __ec) noexcept {
+ return is_character_file(__status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_directory(file_status __s) noexcept { return __s.type() == file_type::directory; }
+inline _LIBCPP_HIDE_FROM_ABI bool is_directory(const path& __p) { return is_directory(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_directory(const path& __p, error_code& __ec) noexcept {
+ return is_directory(__status(__p, &__ec));
+}
+_LIBCPP_EXPORTED_FROM_ABI bool __fs_is_empty(const path& __p, error_code* __ec = nullptr);
+inline _LIBCPP_HIDE_FROM_ABI bool is_empty(const path& __p) { return __fs_is_empty(__p); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_empty(const path& __p, error_code& __ec) { return __fs_is_empty(__p, &__ec); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_fifo(file_status __s) noexcept { return __s.type() == file_type::fifo; }
+inline _LIBCPP_HIDE_FROM_ABI bool is_fifo(const path& __p) { return is_fifo(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_fifo(const path& __p, error_code& __ec) noexcept {
+ return is_fifo(__status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_regular_file(file_status __s) noexcept { return __s.type() == file_type::regular; }
+inline _LIBCPP_HIDE_FROM_ABI bool is_regular_file(const path& __p) { return is_regular_file(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_regular_file(const path& __p, error_code& __ec) noexcept {
+ return is_regular_file(__status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_symlink(file_status __s) noexcept { return __s.type() == file_type::symlink; }
+inline _LIBCPP_HIDE_FROM_ABI bool is_symlink(const path& __p) { return is_symlink(__symlink_status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_symlink(const path& __p, error_code& __ec) noexcept {
+ return is_symlink(__symlink_status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_other(file_status __s) noexcept {
+ return exists(__s) && !is_regular_file(__s) && !is_directory(__s) && !is_symlink(__s);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_other(const path& __p) { return is_other(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_other(const path& __p, error_code& __ec) noexcept {
+ return is_other(__status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI bool is_socket(file_status __s) noexcept { return __s.type() == file_type::socket; }
+inline _LIBCPP_HIDE_FROM_ABI bool is_socket(const path& __p) { return is_socket(__status(__p)); }
+inline _LIBCPP_HIDE_FROM_ABI bool is_socket(const path& __p, error_code& __ec) noexcept {
+ return is_socket(__status(__p, &__ec));
+}
+inline _LIBCPP_HIDE_FROM_ABI file_time_type last_write_time(const path& __p) { return __last_write_time(__p); }
+inline _LIBCPP_HIDE_FROM_ABI file_time_type last_write_time(const path& __p, error_code& __ec) noexcept {
+ return __last_write_time(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void last_write_time(const path& __p, file_time_type __t) { __last_write_time(__p, __t); }
+inline _LIBCPP_HIDE_FROM_ABI void last_write_time(const path& __p, file_time_type __t, error_code& __ec) noexcept {
+ __last_write_time(__p, __t, &__ec);
+}
+_LIBCPP_EXPORTED_FROM_ABI void __permissions(const path&, perms, perm_options, error_code* = nullptr);
+inline _LIBCPP_HIDE_FROM_ABI void
+permissions(const path& __p, perms __prms, perm_options __opts = perm_options::replace) {
+ __permissions(__p, __prms, __opts);
+}
+inline _LIBCPP_HIDE_FROM_ABI void permissions(const path& __p, perms __prms, error_code& __ec) noexcept {
+ __permissions(__p, __prms, perm_options::replace, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void permissions(const path& __p, perms __prms, perm_options __opts, error_code& __ec) {
+ __permissions(__p, __prms, __opts, &__ec);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI path proximate(const path& __p, const path& __base, error_code& __ec) {
+ path __tmp = __weakly_canonical(__p, &__ec);
+ if (__ec)
+ return {};
+ path __tmp_base = __weakly_canonical(__base, &__ec);
+ if (__ec)
+ return {};
+ return __tmp.lexically_proximate(__tmp_base);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI path proximate(const path& __p, error_code& __ec) {
+ return proximate(__p, current_path(), __ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI path proximate(const path& __p, const path& __base = current_path()) {
+ return __weakly_canonical(__p).lexically_proximate(__weakly_canonical(__base));
+}
+inline _LIBCPP_HIDE_FROM_ABI path read_symlink(const path& __p) { return __read_symlink(__p); }
+inline _LIBCPP_HIDE_FROM_ABI path read_symlink(const path& __p, error_code& __ec) { return __read_symlink(__p, &__ec); }
+
+inline _LIBCPP_HIDE_FROM_ABI path relative(const path& __p, const path& __base, error_code& __ec) {
+ path __tmp = __weakly_canonical(__p, &__ec);
+ if (__ec)
+ return path();
+ path __tmpbase = __weakly_canonical(__base, &__ec);
+ if (__ec)
+ return path();
+ return __tmp.lexically_relative(__tmpbase);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI path relative(const path& __p, error_code& __ec) {
+ return relative(__p, current_path(), __ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI path relative(const path& __p, const path& __base = current_path()) {
+ return __weakly_canonical(__p).lexically_relative(__weakly_canonical(__base));
+}
+inline _LIBCPP_HIDE_FROM_ABI uintmax_t remove_all(const path& __p) { return __remove_all(__p); }
+inline _LIBCPP_HIDE_FROM_ABI uintmax_t remove_all(const path& __p, error_code& __ec) {
+ return __remove_all(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI bool remove(const path& __p) { return __remove(__p); }
+inline _LIBCPP_HIDE_FROM_ABI bool remove(const path& __p, error_code& __ec) noexcept { return __remove(__p, &__ec); }
+inline _LIBCPP_HIDE_FROM_ABI void rename(const path& __from, const path& __to) { return __rename(__from, __to); }
+inline _LIBCPP_HIDE_FROM_ABI void rename(const path& __from, const path& __to, error_code& __ec) noexcept {
+ return __rename(__from, __to, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI void resize_file(const path& __p, uintmax_t __ns) { return __resize_file(__p, __ns); }
+inline _LIBCPP_HIDE_FROM_ABI void resize_file(const path& __p, uintmax_t __ns, error_code& __ec) noexcept {
+ return __resize_file(__p, __ns, &__ec);
+}
+_LIBCPP_EXPORTED_FROM_ABI space_info __space(const path&, error_code* __ec = nullptr);
+inline _LIBCPP_HIDE_FROM_ABI space_info space(const path& __p) { return __space(__p); }
+inline _LIBCPP_HIDE_FROM_ABI space_info space(const path& __p, error_code& __ec) noexcept {
+ return __space(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI file_status status(const path& __p) { return __status(__p); }
+inline _LIBCPP_HIDE_FROM_ABI file_status status(const path& __p, error_code& __ec) noexcept {
+ return __status(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI file_status symlink_status(const path& __p) { return __symlink_status(__p); }
+inline _LIBCPP_HIDE_FROM_ABI file_status symlink_status(const path& __p, error_code& __ec) noexcept {
+ return __symlink_status(__p, &__ec);
+}
+inline _LIBCPP_HIDE_FROM_ABI path temp_directory_path() { return __temp_directory_path(); }
+inline _LIBCPP_HIDE_FROM_ABI path temp_directory_path(error_code& __ec) { return __temp_directory_path(&__ec); }
+inline _LIBCPP_HIDE_FROM_ABI path weakly_canonical(path const& __p) { return __weakly_canonical(__p); }
+inline _LIBCPP_HIDE_FROM_ABI path weakly_canonical(path const& __p, error_code& __ec) {
+ return __weakly_canonical(__p, &__ec);
+}
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_POP
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+#endif // _LIBCPP___FILESYSTEM_OPERATIONS_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/path.h b/contrib/llvm-project/libcxx/include/__filesystem/path.h
new file mode 100644
index 000000000000..ff468d517722
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/path.h
@@ -0,0 +1,931 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_PATH_H
+#define _LIBCPP___FILESYSTEM_PATH_H
+
+#include <__algorithm/replace.h>
+#include <__algorithm/replace_copy.h>
+#include <__config>
+#include <__functional/unary_function.h>
+#include <__fwd/functional.h>
+#include <__iterator/back_insert_iterator.h>
+#include <__iterator/iterator_traits.h>
+#include <__type_traits/decay.h>
+#include <__type_traits/is_pointer.h>
+#include <__type_traits/remove_const.h>
+#include <__type_traits/remove_pointer.h>
+#include <cstddef>
+#include <string>
+#include <string_view>
+
+#if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+# include <iomanip> // for quoted
+# include <locale>
+#endif
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_PUSH
+
+template <class _Tp>
+struct __can_convert_char {
+ static const bool value = false;
+};
+template <class _Tp>
+struct __can_convert_char<const _Tp> : public __can_convert_char<_Tp> {};
+template <>
+struct __can_convert_char<char> {
+ static const bool value = true;
+ using __char_type = char;
+};
+template <>
+struct __can_convert_char<wchar_t> {
+ static const bool value = true;
+ using __char_type = wchar_t;
+};
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+template <>
+struct __can_convert_char<char8_t> {
+ static const bool value = true;
+ using __char_type = char8_t;
+};
+# endif
+template <>
+struct __can_convert_char<char16_t> {
+ static const bool value = true;
+ using __char_type = char16_t;
+};
+template <>
+struct __can_convert_char<char32_t> {
+ static const bool value = true;
+ using __char_type = char32_t;
+};
+
+template <class _ECharT, __enable_if_t<__can_convert_char<_ECharT>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI bool __is_separator(_ECharT __e) {
+# if defined(_LIBCPP_WIN32API)
+ return __e == _ECharT('/') || __e == _ECharT('\\');
+# else
+ return __e == _ECharT('/');
+# endif
+}
+
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+typedef u8string __u8_string;
+# else
+typedef string __u8_string;
+# endif
+
+struct _NullSentinel {};
+
+template <class _Tp>
+using _Void = void;
+
+template <class _Tp, class = void>
+struct __is_pathable_string : public false_type {};
+
+template <class _ECharT, class _Traits, class _Alloc>
+struct __is_pathable_string< basic_string<_ECharT, _Traits, _Alloc>,
+ _Void<typename __can_convert_char<_ECharT>::__char_type> >
+ : public __can_convert_char<_ECharT> {
+ using _Str = basic_string<_ECharT, _Traits, _Alloc>;
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT const* __range_begin(_Str const& __s) { return __s.data(); }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT const* __range_end(_Str const& __s) { return __s.data() + __s.length(); }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT __first_or_null(_Str const& __s) { return __s.empty() ? _ECharT{} : __s[0]; }
+};
+
+template <class _ECharT, class _Traits>
+struct __is_pathable_string< basic_string_view<_ECharT, _Traits>,
+ _Void<typename __can_convert_char<_ECharT>::__char_type> >
+ : public __can_convert_char<_ECharT> {
+ using _Str = basic_string_view<_ECharT, _Traits>;
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT const* __range_begin(_Str const& __s) { return __s.data(); }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT const* __range_end(_Str const& __s) { return __s.data() + __s.length(); }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT __first_or_null(_Str const& __s) { return __s.empty() ? _ECharT{} : __s[0]; }
+};
+
+template <class _Source,
+ class _DS = __decay_t<_Source>,
+ class _UnqualPtrType = __remove_const_t<__remove_pointer_t<_DS> >,
+ bool _IsCharPtr = is_pointer<_DS>::value && __can_convert_char<_UnqualPtrType>::value>
+struct __is_pathable_char_array : false_type {};
+
+template <class _Source, class _ECharT, class _UPtr>
+struct __is_pathable_char_array<_Source, _ECharT*, _UPtr, true> : __can_convert_char<__remove_const_t<_ECharT> > {
+ _LIBCPP_HIDE_FROM_ABI static _ECharT const* __range_begin(const _ECharT* __b) { return __b; }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT const* __range_end(const _ECharT* __b) {
+ using _Iter = const _ECharT*;
+ const _ECharT __sentinel = _ECharT{};
+ _Iter __e = __b;
+ for (; *__e != __sentinel; ++__e)
+ ;
+ return __e;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT __first_or_null(const _ECharT* __b) { return *__b; }
+};
+
+template <class _Iter, bool _IsIt = __has_input_iterator_category<_Iter>::value, class = void>
+struct __is_pathable_iter : false_type {};
+
+template <class _Iter>
+struct __is_pathable_iter<
+ _Iter,
+ true,
+ _Void<typename __can_convert_char< typename iterator_traits<_Iter>::value_type>::__char_type> >
+ : __can_convert_char<typename iterator_traits<_Iter>::value_type> {
+ using _ECharT = typename iterator_traits<_Iter>::value_type;
+
+ _LIBCPP_HIDE_FROM_ABI static _Iter __range_begin(_Iter __b) { return __b; }
+
+ _LIBCPP_HIDE_FROM_ABI static _NullSentinel __range_end(_Iter) { return _NullSentinel{}; }
+
+ _LIBCPP_HIDE_FROM_ABI static _ECharT __first_or_null(_Iter __b) { return *__b; }
+};
+
+template <class _Tp,
+ bool _IsStringT = __is_pathable_string<_Tp>::value,
+ bool _IsCharIterT = __is_pathable_char_array<_Tp>::value,
+ bool _IsIterT = !_IsCharIterT && __is_pathable_iter<_Tp>::value>
+struct __is_pathable : false_type {
+ static_assert(!_IsStringT && !_IsCharIterT && !_IsIterT, "Must all be false");
+};
+
+template <class _Tp>
+struct __is_pathable<_Tp, true, false, false> : __is_pathable_string<_Tp> {};
+
+template <class _Tp>
+struct __is_pathable<_Tp, false, true, false> : __is_pathable_char_array<_Tp> {};
+
+template <class _Tp>
+struct __is_pathable<_Tp, false, false, true> : __is_pathable_iter<_Tp> {};
+
+# if defined(_LIBCPP_WIN32API)
+typedef wstring __path_string;
+typedef wchar_t __path_value;
+# else
+typedef string __path_string;
+typedef char __path_value;
+# endif
+
+# if defined(_LIBCPP_WIN32API)
+_LIBCPP_EXPORTED_FROM_ABI size_t __wide_to_char(const wstring&, char*, size_t);
+_LIBCPP_EXPORTED_FROM_ABI size_t __char_to_wide(const string&, wchar_t*, size_t);
+# endif
+
+template <class _ECharT>
+struct _PathCVT;
+
+# if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+template <class _ECharT>
+struct _PathCVT {
+ static_assert(__can_convert_char<_ECharT>::value, "Char type not convertible");
+
+ typedef __narrow_to_utf8<sizeof(_ECharT) * __CHAR_BIT__> _Narrower;
+# if defined(_LIBCPP_WIN32API)
+ typedef __widen_from_utf8<sizeof(wchar_t) * __CHAR_BIT__> _Widener;
+# endif
+
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _ECharT const* __b, _ECharT const* __e) {
+# if defined(_LIBCPP_WIN32API)
+ string __utf8;
+ _Narrower()(back_inserter(__utf8), __b, __e);
+ _Widener()(back_inserter(__dest), __utf8.data(), __utf8.data() + __utf8.size());
+# else
+ _Narrower()(back_inserter(__dest), __b, __e);
+# endif
+ }
+
+ template <class _Iter>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _Iter __e) {
+ static_assert(!is_same<_Iter, _ECharT*>::value, "Call const overload");
+ if (__b == __e)
+ return;
+ basic_string<_ECharT> __tmp(__b, __e);
+# if defined(_LIBCPP_WIN32API)
+ string __utf8;
+ _Narrower()(back_inserter(__utf8), __tmp.data(), __tmp.data() + __tmp.length());
+ _Widener()(back_inserter(__dest), __utf8.data(), __utf8.data() + __utf8.size());
+# else
+ _Narrower()(back_inserter(__dest), __tmp.data(), __tmp.data() + __tmp.length());
+# endif
+ }
+
+ template <class _Iter>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _NullSentinel) {
+ static_assert(!is_same<_Iter, _ECharT*>::value, "Call const overload");
+ const _ECharT __sentinel = _ECharT{};
+ if (*__b == __sentinel)
+ return;
+ basic_string<_ECharT> __tmp;
+ for (; *__b != __sentinel; ++__b)
+ __tmp.push_back(*__b);
+# if defined(_LIBCPP_WIN32API)
+ string __utf8;
+ _Narrower()(back_inserter(__utf8), __tmp.data(), __tmp.data() + __tmp.length());
+ _Widener()(back_inserter(__dest), __utf8.data(), __utf8.data() + __utf8.size());
+# else
+ _Narrower()(back_inserter(__dest), __tmp.data(), __tmp.data() + __tmp.length());
+# endif
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI static void __append_source(__path_string& __dest, _Source const& __s) {
+ using _Traits = __is_pathable<_Source>;
+ __append_range(__dest, _Traits::__range_begin(__s), _Traits::__range_end(__s));
+ }
+};
+# endif // !_LIBCPP_HAS_NO_LOCALIZATION
+
+template <>
+struct _PathCVT<__path_value> {
+ template <class _Iter, __enable_if_t<__has_exactly_input_iterator_category<_Iter>::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _Iter __e) {
+ for (; __b != __e; ++__b)
+ __dest.push_back(*__b);
+ }
+
+ template <class _Iter, __enable_if_t<__has_forward_iterator_category<_Iter>::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _Iter __e) {
+ __dest.append(__b, __e);
+ }
+
+ template <class _Iter>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _NullSentinel) {
+ const char __sentinel = char{};
+ for (; *__b != __sentinel; ++__b)
+ __dest.push_back(*__b);
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI static void __append_source(__path_string& __dest, _Source const& __s) {
+ using _Traits = __is_pathable<_Source>;
+ __append_range(__dest, _Traits::__range_begin(__s), _Traits::__range_end(__s));
+ }
+};
+
+# if defined(_LIBCPP_WIN32API)
+template <>
+struct _PathCVT<char> {
+ _LIBCPP_HIDE_FROM_ABI static void __append_string(__path_string& __dest, const basic_string<char>& __str) {
+ size_t __size = __char_to_wide(__str, nullptr, 0);
+ size_t __pos = __dest.size();
+ __dest.resize(__pos + __size);
+ __char_to_wide(__str, const_cast<__path_value*>(__dest.data()) + __pos, __size);
+ }
+
+ template <class _Iter, __enable_if_t<__has_exactly_input_iterator_category<_Iter>::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _Iter __e) {
+ basic_string<char> __tmp(__b, __e);
+ __append_string(__dest, __tmp);
+ }
+
+ template <class _Iter, __enable_if_t<__has_forward_iterator_category<_Iter>::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _Iter __e) {
+ basic_string<char> __tmp(__b, __e);
+ __append_string(__dest, __tmp);
+ }
+
+ template <class _Iter>
+ _LIBCPP_HIDE_FROM_ABI static void __append_range(__path_string& __dest, _Iter __b, _NullSentinel) {
+ const char __sentinel = char{};
+ basic_string<char> __tmp;
+ for (; *__b != __sentinel; ++__b)
+ __tmp.push_back(*__b);
+ __append_string(__dest, __tmp);
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI static void __append_source(__path_string& __dest, _Source const& __s) {
+ using _Traits = __is_pathable<_Source>;
+ __append_range(__dest, _Traits::__range_begin(__s), _Traits::__range_end(__s));
+ }
+};
+
+template <class _ECharT>
+struct _PathExport {
+ typedef __narrow_to_utf8<sizeof(wchar_t) * __CHAR_BIT__> _Narrower;
+ typedef __widen_from_utf8<sizeof(_ECharT) * __CHAR_BIT__> _Widener;
+
+ template <class _Str>
+ _LIBCPP_HIDE_FROM_ABI static void __append(_Str& __dest, const __path_string& __src) {
+ string __utf8;
+ _Narrower()(back_inserter(__utf8), __src.data(), __src.data() + __src.size());
+ _Widener()(back_inserter(__dest), __utf8.data(), __utf8.data() + __utf8.size());
+ }
+};
+
+template <>
+struct _PathExport<char> {
+ template <class _Str>
+ _LIBCPP_HIDE_FROM_ABI static void __append(_Str& __dest, const __path_string& __src) {
+ size_t __size = __wide_to_char(__src, nullptr, 0);
+ size_t __pos = __dest.size();
+ __dest.resize(__size);
+ __wide_to_char(__src, const_cast<char*>(__dest.data()) + __pos, __size);
+ }
+};
+
+template <>
+struct _PathExport<wchar_t> {
+ template <class _Str>
+ _LIBCPP_HIDE_FROM_ABI static void __append(_Str& __dest, const __path_string& __src) {
+ __dest.append(__src.begin(), __src.end());
+ }
+};
+
+template <>
+struct _PathExport<char16_t> {
+ template <class _Str>
+ _LIBCPP_HIDE_FROM_ABI static void __append(_Str& __dest, const __path_string& __src) {
+ __dest.append(__src.begin(), __src.end());
+ }
+};
+
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+template <>
+struct _PathExport<char8_t> {
+ typedef __narrow_to_utf8<sizeof(wchar_t) * __CHAR_BIT__> _Narrower;
+
+ template <class _Str>
+ _LIBCPP_HIDE_FROM_ABI static void __append(_Str& __dest, const __path_string& __src) {
+ _Narrower()(back_inserter(__dest), __src.data(), __src.data() + __src.size());
+ }
+};
+# endif /* !_LIBCPP_HAS_NO_CHAR8_T */
+# endif /* _LIBCPP_WIN32API */
+
+class _LIBCPP_EXPORTED_FROM_ABI path {
+ template <class _SourceOrIter, class _Tp = path&>
+ using _EnableIfPathable = __enable_if_t<__is_pathable<_SourceOrIter>::value, _Tp>;
+
+ template <class _Tp>
+ using _SourceChar = typename __is_pathable<_Tp>::__char_type;
+
+ template <class _Tp>
+ using _SourceCVT = _PathCVT<_SourceChar<_Tp> >;
+
+public:
+# if defined(_LIBCPP_WIN32API)
+ typedef wchar_t value_type;
+ static constexpr value_type preferred_separator = L'\\';
+# else
+ typedef char value_type;
+ static constexpr value_type preferred_separator = '/';
+# endif
+ typedef basic_string<value_type> string_type;
+ typedef basic_string_view<value_type> __string_view;
+
+ enum format : unsigned char { auto_format, native_format, generic_format };
+
+ // constructors and destructor
+ _LIBCPP_HIDE_FROM_ABI path() noexcept {}
+ _LIBCPP_HIDE_FROM_ABI path(const path& __p) : __pn_(__p.__pn_) {}
+ _LIBCPP_HIDE_FROM_ABI path(path&& __p) noexcept : __pn_(std::move(__p.__pn_)) {}
+
+ _LIBCPP_HIDE_FROM_ABI path(string_type&& __s, format = format::auto_format) noexcept : __pn_(std::move(__s)) {}
+
+ template <class _Source, class = _EnableIfPathable<_Source, void> >
+ _LIBCPP_HIDE_FROM_ABI path(const _Source& __src, format = format::auto_format) {
+ _SourceCVT<_Source>::__append_source(__pn_, __src);
+ }
+
+ template <class _InputIt>
+ _LIBCPP_HIDE_FROM_ABI path(_InputIt __first, _InputIt __last, format = format::auto_format) {
+ typedef typename iterator_traits<_InputIt>::value_type _ItVal;
+ _PathCVT<_ItVal>::__append_range(__pn_, __first, __last);
+ }
+
+ /*
+ #if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+ // TODO Implement locale conversions.
+ template <class _Source, class = _EnableIfPathable<_Source, void> >
+ path(const _Source& __src, const locale& __loc, format = format::auto_format);
+ template <class _InputIt>
+ path(_InputIt __first, _InputIt _last, const locale& __loc,
+ format = format::auto_format);
+ #endif
+ */
+
+ _LIBCPP_HIDE_FROM_ABI ~path() = default;
+
+ // assignments
+ _LIBCPP_HIDE_FROM_ABI path& operator=(const path& __p) {
+ __pn_ = __p.__pn_;
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& operator=(path&& __p) noexcept {
+ __pn_ = std::move(__p.__pn_);
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& operator=(string_type&& __s) noexcept {
+ __pn_ = std::move(__s);
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& assign(string_type&& __s) noexcept {
+ __pn_ = std::move(__s);
+ return *this;
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> operator=(const _Source& __src) {
+ return this->assign(__src);
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> assign(const _Source& __src) {
+ __pn_.clear();
+ _SourceCVT<_Source>::__append_source(__pn_, __src);
+ return *this;
+ }
+
+ template <class _InputIt>
+ _LIBCPP_HIDE_FROM_ABI path& assign(_InputIt __first, _InputIt __last) {
+ typedef typename iterator_traits<_InputIt>::value_type _ItVal;
+ __pn_.clear();
+ _PathCVT<_ItVal>::__append_range(__pn_, __first, __last);
+ return *this;
+ }
+
+public:
+ // appends
+# if defined(_LIBCPP_WIN32API)
+ _LIBCPP_HIDE_FROM_ABI path& operator/=(const path& __p) {
+ auto __p_root_name = __p.__root_name();
+ auto __p_root_name_size = __p_root_name.size();
+ if (__p.is_absolute() || (!__p_root_name.empty() && __p_root_name != __string_view(root_name().__pn_))) {
+ __pn_ = __p.__pn_;
+ return *this;
+ }
+ if (__p.has_root_directory()) {
+ path __root_name_str = root_name();
+ __pn_ = __root_name_str.native();
+ __pn_ += __string_view(__p.__pn_).substr(__p_root_name_size);
+ return *this;
+ }
+ if (has_filename() || (!has_root_directory() && is_absolute()))
+ __pn_ += preferred_separator;
+ __pn_ += __string_view(__p.__pn_).substr(__p_root_name_size);
+ return *this;
+ }
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> operator/=(const _Source& __src) {
+ return operator/=(path(__src));
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> append(const _Source& __src) {
+ return operator/=(path(__src));
+ }
+
+ template <class _InputIt>
+ _LIBCPP_HIDE_FROM_ABI path& append(_InputIt __first, _InputIt __last) {
+ return operator/=(path(__first, __last));
+ }
+# else
+ _LIBCPP_HIDE_FROM_ABI path& operator/=(const path& __p) {
+ if (__p.is_absolute()) {
+ __pn_ = __p.__pn_;
+ return *this;
+ }
+ if (has_filename())
+ __pn_ += preferred_separator;
+ __pn_ += __p.native();
+ return *this;
+ }
+
+ // FIXME: Use _LIBCPP_DIAGNOSE_WARNING to produce a diagnostic when __src
+ // is known at compile time to be "/' since the user almost certainly intended
+ // to append a separator instead of overwriting the path with "/"
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> operator/=(const _Source& __src) {
+ return this->append(__src);
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> append(const _Source& __src) {
+ using _Traits = __is_pathable<_Source>;
+ using _CVT = _PathCVT<_SourceChar<_Source> >;
+ bool __source_is_absolute = filesystem::__is_separator(_Traits::__first_or_null(__src));
+ if (__source_is_absolute)
+ __pn_.clear();
+ else if (has_filename())
+ __pn_ += preferred_separator;
+ _CVT::__append_source(__pn_, __src);
+ return *this;
+ }
+
+ template <class _InputIt>
+ _LIBCPP_HIDE_FROM_ABI path& append(_InputIt __first, _InputIt __last) {
+ typedef typename iterator_traits<_InputIt>::value_type _ItVal;
+ static_assert(__can_convert_char<_ItVal>::value, "Must convertible");
+ using _CVT = _PathCVT<_ItVal>;
+ if (__first != __last && filesystem::__is_separator(*__first))
+ __pn_.clear();
+ else if (has_filename())
+ __pn_ += preferred_separator;
+ _CVT::__append_range(__pn_, __first, __last);
+ return *this;
+ }
+# endif
+
+ // concatenation
+ _LIBCPP_HIDE_FROM_ABI path& operator+=(const path& __x) {
+ __pn_ += __x.__pn_;
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& operator+=(const string_type& __x) {
+ __pn_ += __x;
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& operator+=(__string_view __x) {
+ __pn_ += __x;
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& operator+=(const value_type* __x) {
+ __pn_ += __x;
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& operator+=(value_type __x) {
+ __pn_ += __x;
+ return *this;
+ }
+
+ template <class _ECharT, __enable_if_t<__can_convert_char<_ECharT>::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI path& operator+=(_ECharT __x) {
+ _PathCVT<_ECharT>::__append_source(__pn_, basic_string_view<_ECharT>(&__x, 1));
+ return *this;
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> operator+=(const _Source& __x) {
+ return this->concat(__x);
+ }
+
+ template <class _Source>
+ _LIBCPP_HIDE_FROM_ABI _EnableIfPathable<_Source> concat(const _Source& __x) {
+ _SourceCVT<_Source>::__append_source(__pn_, __x);
+ return *this;
+ }
+
+ template <class _InputIt>
+ _LIBCPP_HIDE_FROM_ABI path& concat(_InputIt __first, _InputIt __last) {
+ typedef typename iterator_traits<_InputIt>::value_type _ItVal;
+ _PathCVT<_ItVal>::__append_range(__pn_, __first, __last);
+ return *this;
+ }
+
+ // modifiers
+ _LIBCPP_HIDE_FROM_ABI void clear() noexcept { __pn_.clear(); }
+
+ _LIBCPP_HIDE_FROM_ABI path& make_preferred() {
+# if defined(_LIBCPP_WIN32API)
+ std::replace(__pn_.begin(), __pn_.end(), L'/', L'\\');
+# endif
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& remove_filename() {
+ auto __fname = __filename();
+ if (!__fname.empty())
+ __pn_.erase(__fname.data() - __pn_.data());
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI path& replace_filename(const path& __replacement) {
+ remove_filename();
+ return (*this /= __replacement);
+ }
+
+ path& replace_extension(const path& __replacement = path());
+
+ friend _LIBCPP_HIDE_FROM_ABI bool operator==(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) == 0;
+ }
+# if _LIBCPP_STD_VER <= 17
+ friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) != 0;
+ }
+ friend _LIBCPP_HIDE_FROM_ABI bool operator<(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) < 0;
+ }
+ friend _LIBCPP_HIDE_FROM_ABI bool operator<=(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) <= 0;
+ }
+ friend _LIBCPP_HIDE_FROM_ABI bool operator>(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) > 0;
+ }
+ friend _LIBCPP_HIDE_FROM_ABI bool operator>=(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) >= 0;
+ }
+# else // _LIBCPP_STD_VER <= 17
+ friend _LIBCPP_HIDE_FROM_ABI strong_ordering operator<=>(const path& __lhs, const path& __rhs) noexcept {
+ return __lhs.__compare(__rhs.__pn_) <=> 0;
+ }
+# endif // _LIBCPP_STD_VER <= 17
+
+ friend _LIBCPP_HIDE_FROM_ABI path operator/(const path& __lhs, const path& __rhs) {
+ path __result(__lhs);
+ __result /= __rhs;
+ return __result;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI void swap(path& __rhs) noexcept { __pn_.swap(__rhs.__pn_); }
+
+ // private helper to allow reserving memory in the path
+ _LIBCPP_HIDE_FROM_ABI void __reserve(size_t __s) { __pn_.reserve(__s); }
+
+ // native format observers
+ _LIBCPP_HIDE_FROM_ABI const string_type& native() const noexcept { return __pn_; }
+
+ _LIBCPP_HIDE_FROM_ABI const value_type* c_str() const noexcept { return __pn_.c_str(); }
+
+ _LIBCPP_HIDE_FROM_ABI operator string_type() const { return __pn_; }
+
+# if defined(_LIBCPP_WIN32API)
+ _LIBCPP_HIDE_FROM_ABI std::wstring wstring() const { return __pn_; }
+
+ _LIBCPP_HIDE_FROM_ABI std::wstring generic_wstring() const {
+ std::wstring __s;
+ __s.resize(__pn_.size());
+ std::replace_copy(__pn_.begin(), __pn_.end(), __s.begin(), '\\', '/');
+ return __s;
+ }
+
+# if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+ template <class _ECharT, class _Traits = char_traits<_ECharT>, class _Allocator = allocator<_ECharT> >
+ _LIBCPP_HIDE_FROM_ABI basic_string<_ECharT, _Traits, _Allocator> string(const _Allocator& __a = _Allocator()) const {
+ using _Str = basic_string<_ECharT, _Traits, _Allocator>;
+ _Str __s(__a);
+ __s.reserve(__pn_.size());
+ _PathExport<_ECharT>::__append(__s, __pn_);
+ return __s;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI std::string string() const { return string<char>(); }
+ _LIBCPP_HIDE_FROM_ABI __u8_string u8string() const {
+ using _CVT = __narrow_to_utf8<sizeof(wchar_t) * __CHAR_BIT__>;
+ __u8_string __s;
+ __s.reserve(__pn_.size());
+ _CVT()(back_inserter(__s), __pn_.data(), __pn_.data() + __pn_.size());
+ return __s;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI std::u16string u16string() const { return string<char16_t>(); }
+ _LIBCPP_HIDE_FROM_ABI std::u32string u32string() const { return string<char32_t>(); }
+
+ // generic format observers
+ template <class _ECharT, class _Traits = char_traits<_ECharT>, class _Allocator = allocator<_ECharT> >
+ _LIBCPP_HIDE_FROM_ABI basic_string<_ECharT, _Traits, _Allocator>
+ generic_string(const _Allocator& __a = _Allocator()) const {
+ using _Str = basic_string<_ECharT, _Traits, _Allocator>;
+ _Str __s = string<_ECharT, _Traits, _Allocator>(__a);
+ // Note: This (and generic_u8string below) is slightly suboptimal as
+ // it iterates twice over the string; once to convert it to the right
+ // character type, and once to replace path delimiters.
+ std::replace(__s.begin(), __s.end(), static_cast<_ECharT>('\\'), static_cast<_ECharT>('/'));
+ return __s;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI std::string generic_string() const { return generic_string<char>(); }
+ _LIBCPP_HIDE_FROM_ABI std::u16string generic_u16string() const { return generic_string<char16_t>(); }
+ _LIBCPP_HIDE_FROM_ABI std::u32string generic_u32string() const { return generic_string<char32_t>(); }
+ _LIBCPP_HIDE_FROM_ABI __u8_string generic_u8string() const {
+ __u8_string __s = u8string();
+ std::replace(__s.begin(), __s.end(), '\\', '/');
+ return __s;
+ }
+# endif /* !_LIBCPP_HAS_NO_LOCALIZATION */
+# else /* _LIBCPP_WIN32API */
+
+ _LIBCPP_HIDE_FROM_ABI std::string string() const { return __pn_; }
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+ _LIBCPP_HIDE_FROM_ABI std::u8string u8string() const { return std::u8string(__pn_.begin(), __pn_.end()); }
+# else
+ _LIBCPP_HIDE_FROM_ABI std::string u8string() const { return __pn_; }
+# endif
+
+# if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+ template <class _ECharT, class _Traits = char_traits<_ECharT>, class _Allocator = allocator<_ECharT> >
+ _LIBCPP_HIDE_FROM_ABI basic_string<_ECharT, _Traits, _Allocator> string(const _Allocator& __a = _Allocator()) const {
+ using _CVT = __widen_from_utf8<sizeof(_ECharT) * __CHAR_BIT__>;
+ using _Str = basic_string<_ECharT, _Traits, _Allocator>;
+ _Str __s(__a);
+ __s.reserve(__pn_.size());
+ _CVT()(std::back_inserter(__s), __pn_.data(), __pn_.data() + __pn_.size());
+ return __s;
+ }
+
+# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
+ _LIBCPP_HIDE_FROM_ABI std::wstring wstring() const { return string<wchar_t>(); }
+# endif
+ _LIBCPP_HIDE_FROM_ABI std::u16string u16string() const { return string<char16_t>(); }
+ _LIBCPP_HIDE_FROM_ABI std::u32string u32string() const { return string<char32_t>(); }
+# endif /* !_LIBCPP_HAS_NO_LOCALIZATION */
+
+ // generic format observers
+ _LIBCPP_HIDE_FROM_ABI std::string generic_string() const { return __pn_; }
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+ _LIBCPP_HIDE_FROM_ABI std::u8string generic_u8string() const { return std::u8string(__pn_.begin(), __pn_.end()); }
+# else
+ _LIBCPP_HIDE_FROM_ABI std::string generic_u8string() const { return __pn_; }
+# endif
+
+# if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+ template <class _ECharT, class _Traits = char_traits<_ECharT>, class _Allocator = allocator<_ECharT> >
+ _LIBCPP_HIDE_FROM_ABI basic_string<_ECharT, _Traits, _Allocator>
+ generic_string(const _Allocator& __a = _Allocator()) const {
+ return string<_ECharT, _Traits, _Allocator>(__a);
+ }
+
+# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
+ _LIBCPP_HIDE_FROM_ABI std::wstring generic_wstring() const { return string<wchar_t>(); }
+# endif
+ _LIBCPP_HIDE_FROM_ABI std::u16string generic_u16string() const { return string<char16_t>(); }
+ _LIBCPP_HIDE_FROM_ABI std::u32string generic_u32string() const { return string<char32_t>(); }
+# endif /* !_LIBCPP_HAS_NO_LOCALIZATION */
+# endif /* !_LIBCPP_WIN32API */
+
+private:
+ int __compare(__string_view) const;
+ __string_view __root_name() const;
+ __string_view __root_directory() const;
+ __string_view __root_path_raw() const;
+ __string_view __relative_path() const;
+ __string_view __parent_path() const;
+ __string_view __filename() const;
+ __string_view __stem() const;
+ __string_view __extension() const;
+
+public:
+ // compare
+ _LIBCPP_HIDE_FROM_ABI int compare(const path& __p) const noexcept { return __compare(__p.__pn_); }
+ _LIBCPP_HIDE_FROM_ABI int compare(const string_type& __s) const { return __compare(__s); }
+ _LIBCPP_HIDE_FROM_ABI int compare(__string_view __s) const { return __compare(__s); }
+ _LIBCPP_HIDE_FROM_ABI int compare(const value_type* __s) const { return __compare(__s); }
+
+ // decomposition
+ _LIBCPP_HIDE_FROM_ABI path root_name() const { return string_type(__root_name()); }
+ _LIBCPP_HIDE_FROM_ABI path root_directory() const { return string_type(__root_directory()); }
+ _LIBCPP_HIDE_FROM_ABI path root_path() const {
+# if defined(_LIBCPP_WIN32API)
+ return string_type(__root_path_raw());
+# else
+ return root_name().append(string_type(__root_directory()));
+# endif
+ }
+ _LIBCPP_HIDE_FROM_ABI path relative_path() const { return string_type(__relative_path()); }
+ _LIBCPP_HIDE_FROM_ABI path parent_path() const { return string_type(__parent_path()); }
+ _LIBCPP_HIDE_FROM_ABI path filename() const { return string_type(__filename()); }
+ _LIBCPP_HIDE_FROM_ABI path stem() const { return string_type(__stem()); }
+ _LIBCPP_HIDE_FROM_ABI path extension() const { return string_type(__extension()); }
+
+ // query
+ _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool empty() const noexcept { return __pn_.empty(); }
+
+ _LIBCPP_HIDE_FROM_ABI bool has_root_name() const { return !__root_name().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_root_directory() const { return !__root_directory().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_root_path() const { return !__root_path_raw().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_relative_path() const { return !__relative_path().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_parent_path() const { return !__parent_path().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_filename() const { return !__filename().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_stem() const { return !__stem().empty(); }
+ _LIBCPP_HIDE_FROM_ABI bool has_extension() const { return !__extension().empty(); }
+
+ _LIBCPP_HIDE_FROM_ABI bool is_absolute() const {
+# if defined(_LIBCPP_WIN32API)
+ __string_view __root_name_str = __root_name();
+ __string_view __root_dir = __root_directory();
+ if (__root_name_str.size() == 2 && __root_name_str[1] == ':') {
+ // A drive letter with no root directory is relative, e.g. x:example.
+ return !__root_dir.empty();
+ }
+ // If no root name, it's relative, e.g. \example is relative to the current drive
+ if (__root_name_str.empty())
+ return false;
+ if (__root_name_str.size() < 3)
+ return false;
+ // A server root name, like \\server, is always absolute
+ if (__root_name_str[0] != '/' && __root_name_str[0] != '\\')
+ return false;
+ if (__root_name_str[1] != '/' && __root_name_str[1] != '\\')
+ return false;
+ // Seems to be a server root name
+ return true;
+# else
+ return has_root_directory();
+# endif
+ }
+ _LIBCPP_HIDE_FROM_ABI bool is_relative() const { return !is_absolute(); }
+
+ // relative paths
+ path lexically_normal() const;
+ path lexically_relative(const path& __base) const;
+
+ _LIBCPP_HIDE_FROM_ABI path lexically_proximate(const path& __base) const {
+ path __result = this->lexically_relative(__base);
+ if (__result.native().empty())
+ return *this;
+ return __result;
+ }
+
+ // iterators
+ class _LIBCPP_EXPORTED_FROM_ABI iterator;
+ typedef iterator const_iterator;
+
+ iterator begin() const;
+ iterator end() const;
+
+# if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
+ template <
+ class _CharT,
+ class _Traits,
+ __enable_if_t<is_same<_CharT, value_type>::value && is_same<_Traits, char_traits<value_type> >::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI friend basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __os, const path& __p) {
+ __os << std::__quoted(__p.native());
+ return __os;
+ }
+
+ template <
+ class _CharT,
+ class _Traits,
+ __enable_if_t<!is_same<_CharT, value_type>::value || !is_same<_Traits, char_traits<value_type> >::value, int> = 0>
+ _LIBCPP_HIDE_FROM_ABI friend basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __os, const path& __p) {
+ __os << std::__quoted(__p.string<_CharT, _Traits>());
+ return __os;
+ }
+
+ template <class _CharT, class _Traits>
+ _LIBCPP_HIDE_FROM_ABI friend basic_istream<_CharT, _Traits>&
+ operator>>(basic_istream<_CharT, _Traits>& __is, path& __p) {
+ basic_string<_CharT, _Traits> __tmp;
+ __is >> std::__quoted(__tmp);
+ __p = __tmp;
+ return __is;
+ }
+# endif // !_LIBCPP_HAS_NO_LOCALIZATION
+
+private:
+ inline _LIBCPP_HIDE_FROM_ABI path& __assign_view(__string_view const& __s) {
+ __pn_ = string_type(__s);
+ return *this;
+ }
+ string_type __pn_;
+};
+
+inline _LIBCPP_HIDE_FROM_ABI void swap(path& __lhs, path& __rhs) noexcept { __lhs.swap(__rhs); }
+
+_LIBCPP_EXPORTED_FROM_ABI size_t hash_value(const path& __p) noexcept;
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_POP
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <>
+struct _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY hash<filesystem::path> : __unary_function<filesystem::path, size_t> {
+ _LIBCPP_HIDE_FROM_ABI size_t operator()(filesystem::path const& __p) const noexcept {
+ return filesystem::hash_value(__p);
+ }
+};
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER >= 17
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___FILESYSTEM_PATH_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/path_iterator.h b/contrib/llvm-project/libcxx/include/__filesystem/path_iterator.h
new file mode 100644
index 000000000000..f4d486d86cf3
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/path_iterator.h
@@ -0,0 +1,115 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_PATH_ITERATOR_H
+#define _LIBCPP___FILESYSTEM_PATH_ITERATOR_H
+
+#include <__assert>
+#include <__config>
+#include <__filesystem/path.h>
+#include <__iterator/iterator_traits.h>
+#include <cstddef>
+#include <string>
+#include <string_view>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+class _LIBCPP_EXPORTED_FROM_ABI path::iterator {
+public:
+ enum _ParserState : unsigned char {
+ _Singular,
+ _BeforeBegin,
+ _InRootName,
+ _InRootDir,
+ _InFilenames,
+ _InTrailingSep,
+ _AtEnd
+ };
+
+public:
+ typedef input_iterator_tag iterator_category;
+ typedef bidirectional_iterator_tag iterator_concept;
+
+ typedef path value_type;
+ typedef ptrdiff_t difference_type;
+ typedef const path* pointer;
+ typedef path reference;
+
+public:
+ _LIBCPP_HIDE_FROM_ABI iterator() : __stashed_elem_(), __path_ptr_(nullptr), __entry_(), __state_(_Singular) {}
+
+ _LIBCPP_HIDE_FROM_ABI iterator(const iterator&) = default;
+ _LIBCPP_HIDE_FROM_ABI ~iterator() = default;
+
+ _LIBCPP_HIDE_FROM_ABI iterator& operator=(const iterator&) = default;
+
+ _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __stashed_elem_; }
+
+ _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return &__stashed_elem_; }
+
+ _LIBCPP_HIDE_FROM_ABI iterator& operator++() {
+ _LIBCPP_ASSERT_NON_NULL(__state_ != _Singular, "attempting to increment a singular iterator");
+ _LIBCPP_ASSERT_UNCATEGORIZED(__state_ != _AtEnd, "attempting to increment the end iterator");
+ return __increment();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI iterator operator++(int) {
+ iterator __it(*this);
+ this->operator++();
+ return __it;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI iterator& operator--() {
+ _LIBCPP_ASSERT_NON_NULL(__state_ != _Singular, "attempting to decrement a singular iterator");
+ _LIBCPP_ASSERT_UNCATEGORIZED(
+ __entry_.data() != __path_ptr_->native().data(), "attempting to decrement the begin iterator");
+ return __decrement();
+ }
+
+ _LIBCPP_HIDE_FROM_ABI iterator operator--(int) {
+ iterator __it(*this);
+ this->operator--();
+ return __it;
+ }
+
+private:
+ friend class path;
+
+ inline _LIBCPP_HIDE_FROM_ABI friend bool operator==(const iterator&, const iterator&);
+
+ iterator& __increment();
+ iterator& __decrement();
+
+ path __stashed_elem_;
+ const path* __path_ptr_;
+ path::__string_view __entry_;
+ _ParserState __state_;
+};
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY
+inline _LIBCPP_HIDE_FROM_ABI bool operator==(const path::iterator& __lhs, const path::iterator& __rhs) {
+ return __lhs.__path_ptr_ == __rhs.__path_ptr_ && __lhs.__entry_.data() == __rhs.__entry_.data();
+}
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY
+inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const path::iterator& __lhs, const path::iterator& __rhs) {
+ return !(__lhs == __rhs);
+}
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_PATH_ITERATOR_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/perm_options.h b/contrib/llvm-project/libcxx/include/__filesystem/perm_options.h
new file mode 100644
index 000000000000..64c16ee60a17
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/perm_options.h
@@ -0,0 +1,57 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_PERM_OPTIONS_H
+#define _LIBCPP___FILESYSTEM_PERM_OPTIONS_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+enum class perm_options : unsigned char { replace = 1, add = 2, remove = 4, nofollow = 8 };
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perm_options operator&(perm_options __lhs, perm_options __rhs) {
+ return static_cast<perm_options>(static_cast<unsigned>(__lhs) & static_cast<unsigned>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perm_options operator|(perm_options __lhs, perm_options __rhs) {
+ return static_cast<perm_options>(static_cast<unsigned>(__lhs) | static_cast<unsigned>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perm_options operator^(perm_options __lhs, perm_options __rhs) {
+ return static_cast<perm_options>(static_cast<unsigned>(__lhs) ^ static_cast<unsigned>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perm_options operator~(perm_options __lhs) {
+ return static_cast<perm_options>(~static_cast<unsigned>(__lhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline perm_options& operator&=(perm_options& __lhs, perm_options __rhs) {
+ return __lhs = __lhs & __rhs;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline perm_options& operator|=(perm_options& __lhs, perm_options __rhs) {
+ return __lhs = __lhs | __rhs;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline perm_options& operator^=(perm_options& __lhs, perm_options __rhs) {
+ return __lhs = __lhs ^ __rhs;
+}
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_PERM_OPTIONS_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/perms.h b/contrib/llvm-project/libcxx/include/__filesystem/perms.h
new file mode 100644
index 000000000000..458f1e6e5348
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/perms.h
@@ -0,0 +1,80 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_PERMS_H
+#define _LIBCPP___FILESYSTEM_PERMS_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+// On Windows, these permission bits map to one single readonly flag per
+// file, and the executable bit is always returned as set. When setting
+// permissions, as long as the write bit is set for either owner, group or
+// others, the readonly flag is cleared.
+enum class perms : unsigned {
+ none = 0,
+
+ owner_read = 0400,
+ owner_write = 0200,
+ owner_exec = 0100,
+ owner_all = 0700,
+
+ group_read = 040,
+ group_write = 020,
+ group_exec = 010,
+ group_all = 070,
+
+ others_read = 04,
+ others_write = 02,
+ others_exec = 01,
+ others_all = 07,
+
+ all = 0777,
+
+ set_uid = 04000,
+ set_gid = 02000,
+ sticky_bit = 01000,
+ mask = 07777,
+ unknown = 0xFFFF,
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perms operator&(perms __lhs, perms __rhs) {
+ return static_cast<perms>(static_cast<unsigned>(__lhs) & static_cast<unsigned>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perms operator|(perms __lhs, perms __rhs) {
+ return static_cast<perms>(static_cast<unsigned>(__lhs) | static_cast<unsigned>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perms operator^(perms __lhs, perms __rhs) {
+ return static_cast<perms>(static_cast<unsigned>(__lhs) ^ static_cast<unsigned>(__rhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr perms operator~(perms __lhs) {
+ return static_cast<perms>(~static_cast<unsigned>(__lhs));
+}
+
+_LIBCPP_HIDE_FROM_ABI inline perms& operator&=(perms& __lhs, perms __rhs) { return __lhs = __lhs & __rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline perms& operator|=(perms& __lhs, perms __rhs) { return __lhs = __lhs | __rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline perms& operator^=(perms& __lhs, perms __rhs) { return __lhs = __lhs ^ __rhs; }
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_PERMS_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/recursive_directory_iterator.h b/contrib/llvm-project/libcxx/include/__filesystem/recursive_directory_iterator.h
new file mode 100644
index 000000000000..caa1396eb301
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/recursive_directory_iterator.h
@@ -0,0 +1,164 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_RECURSIVE_DIRECTORY_ITERATOR_H
+#define _LIBCPP___FILESYSTEM_RECURSIVE_DIRECTORY_ITERATOR_H
+
+#include <__config>
+#include <__filesystem/directory_entry.h>
+#include <__filesystem/directory_options.h>
+#include <__filesystem/path.h>
+#include <__iterator/default_sentinel.h>
+#include <__iterator/iterator_traits.h>
+#include <__memory/shared_ptr.h>
+#include <__ranges/enable_borrowed_range.h>
+#include <__ranges/enable_view.h>
+#include <__system_error/error_code.h>
+#include <__utility/move.h>
+#include <cstddef>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#if _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_PUSH
+
+class recursive_directory_iterator {
+public:
+ using value_type = directory_entry;
+ using difference_type = ptrdiff_t;
+ using pointer = directory_entry const*;
+ using reference = directory_entry const&;
+ using iterator_category = input_iterator_tag;
+
+public:
+ // constructors and destructor
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator() noexcept : __rec_(false) {}
+
+ _LIBCPP_HIDE_FROM_ABI explicit recursive_directory_iterator(
+ const path& __p, directory_options __xoptions = directory_options::none)
+ : recursive_directory_iterator(__p, __xoptions, nullptr) {}
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator(const path& __p, directory_options __xoptions, error_code& __ec)
+ : recursive_directory_iterator(__p, __xoptions, &__ec) {}
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator(const path& __p, error_code& __ec)
+ : recursive_directory_iterator(__p, directory_options::none, &__ec) {}
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator(const recursive_directory_iterator&) = default;
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator(recursive_directory_iterator&&) = default;
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator& operator=(const recursive_directory_iterator&) = default;
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator& operator=(recursive_directory_iterator&& __o) noexcept {
+ // non-default implementation provided to support self-move assign.
+ if (this != &__o) {
+ __imp_ = std::move(__o.__imp_);
+ __rec_ = __o.__rec_;
+ }
+ return *this;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI ~recursive_directory_iterator() = default;
+
+ _LIBCPP_HIDE_FROM_ABI const directory_entry& operator*() const { return __dereference(); }
+
+ _LIBCPP_HIDE_FROM_ABI const directory_entry* operator->() const { return &__dereference(); }
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator& operator++() { return __increment(); }
+
+ _LIBCPP_HIDE_FROM_ABI __dir_element_proxy operator++(int) {
+ __dir_element_proxy __p(**this);
+ __increment();
+ return __p;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator& increment(error_code& __ec) { return __increment(&__ec); }
+
+ _LIBCPP_EXPORTED_FROM_ABI directory_options options() const;
+ _LIBCPP_EXPORTED_FROM_ABI int depth() const;
+
+ _LIBCPP_HIDE_FROM_ABI void pop() { __pop(); }
+
+ _LIBCPP_HIDE_FROM_ABI void pop(error_code& __ec) { __pop(&__ec); }
+
+ _LIBCPP_HIDE_FROM_ABI bool recursion_pending() const { return __rec_; }
+
+ _LIBCPP_HIDE_FROM_ABI void disable_recursion_pending() { __rec_ = false; }
+
+# if _LIBCPP_STD_VER >= 20
+
+ _LIBCPP_HIDE_FROM_ABI bool operator==(default_sentinel_t) const noexcept {
+ return *this == recursive_directory_iterator();
+ }
+
+# endif
+
+private:
+ _LIBCPP_EXPORTED_FROM_ABI recursive_directory_iterator(const path& __p, directory_options __opt, error_code* __ec);
+ _LIBCPP_EXPORTED_FROM_ABI const directory_entry& __dereference() const;
+ _LIBCPP_EXPORTED_FROM_ABI bool __try_recursion(error_code* __ec);
+ _LIBCPP_EXPORTED_FROM_ABI void __advance(error_code* __ec = nullptr);
+ _LIBCPP_EXPORTED_FROM_ABI recursive_directory_iterator& __increment(error_code* __ec = nullptr);
+ _LIBCPP_EXPORTED_FROM_ABI void __pop(error_code* __ec = nullptr);
+
+ inline _LIBCPP_HIDE_FROM_ABI friend bool
+ operator==(const recursive_directory_iterator&, const recursive_directory_iterator&) noexcept;
+
+ struct _LIBCPP_HIDDEN __shared_imp;
+ shared_ptr<__shared_imp> __imp_;
+ bool __rec_;
+}; // class recursive_directory_iterator
+
+inline _LIBCPP_HIDE_FROM_ABI bool
+operator==(const recursive_directory_iterator& __lhs, const recursive_directory_iterator& __rhs) noexcept {
+ return __lhs.__imp_ == __rhs.__imp_;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline bool
+operator!=(const recursive_directory_iterator& __lhs, const recursive_directory_iterator& __rhs) noexcept {
+ return !(__lhs == __rhs);
+}
+// enable recursive_directory_iterator range-based for statements
+inline _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator begin(recursive_directory_iterator __iter) noexcept {
+ return __iter;
+}
+
+inline _LIBCPP_HIDE_FROM_ABI recursive_directory_iterator end(recursive_directory_iterator) noexcept {
+ return recursive_directory_iterator();
+}
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_POP
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+# if _LIBCPP_STD_VER >= 20
+
+template <>
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY inline constexpr bool
+ std::ranges::enable_borrowed_range<std::filesystem::recursive_directory_iterator> = true;
+
+template <>
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY inline constexpr bool
+ std::ranges::enable_view<std::filesystem::recursive_directory_iterator> = true;
+
+# endif // _LIBCPP_STD_VER >= 20
+
+#endif // _LIBCPP_STD_VER >= 17 && !defined(_LIBCPP_HAS_NO_FILESYSTEM)
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___FILESYSTEM_RECURSIVE_DIRECTORY_ITERATOR_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/space_info.h b/contrib/llvm-project/libcxx/include/__filesystem/space_info.h
new file mode 100644
index 000000000000..3fa57d33096f
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/space_info.h
@@ -0,0 +1,38 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_SPACE_INFO_H
+#define _LIBCPP___FILESYSTEM_SPACE_INFO_H
+
+#include <__config>
+#include <cstdint>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+struct _LIBCPP_EXPORTED_FROM_ABI space_info {
+ uintmax_t capacity;
+ uintmax_t free;
+ uintmax_t available;
+
+# if _LIBCPP_STD_VER >= 20
+ friend _LIBCPP_HIDE_FROM_ABI bool operator==(const space_info&, const space_info&) = default;
+# endif
+};
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_SPACE_INFO_H
diff --git a/contrib/llvm-project/libcxx/include/__filesystem/u8path.h b/contrib/llvm-project/libcxx/include/__filesystem/u8path.h
new file mode 100644
index 000000000000..dae5823128f0
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__filesystem/u8path.h
@@ -0,0 +1,100 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FILESYSTEM_U8PATH_H
+#define _LIBCPP___FILESYSTEM_U8PATH_H
+
+#include <__algorithm/unwrap_iter.h>
+#include <__config>
+#include <__filesystem/path.h>
+#include <string>
+
+// Only required on Windows for __widen_from_utf8, and included conservatively
+// because it requires support for localization.
+#if defined(_LIBCPP_WIN32API)
+# include <locale>
+#endif
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_PUSH
+
+template <class _InputIt, __enable_if_t<__is_pathable<_InputIt>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_DEPRECATED_WITH_CHAR8_T path u8path(_InputIt __f, _InputIt __l) {
+ static_assert(
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+ is_same<typename __is_pathable<_InputIt>::__char_type, char8_t>::value ||
+# endif
+ is_same<typename __is_pathable<_InputIt>::__char_type, char>::value,
+ "u8path(Iter, Iter) requires Iter have a value_type of type 'char'"
+ " or 'char8_t'");
+# if defined(_LIBCPP_WIN32API)
+ string __tmp(__f, __l);
+ using _CVT = __widen_from_utf8<sizeof(wchar_t) * __CHAR_BIT__>;
+ std::wstring __w;
+ __w.reserve(__tmp.size());
+ _CVT()(back_inserter(__w), __tmp.data(), __tmp.data() + __tmp.size());
+ return path(__w);
+# else
+ return path(__f, __l);
+# endif /* !_LIBCPP_WIN32API */
+}
+
+# if defined(_LIBCPP_WIN32API)
+template <class _InputIt, __enable_if_t<__is_pathable<_InputIt>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_DEPRECATED_WITH_CHAR8_T path u8path(_InputIt __f, _NullSentinel) {
+ static_assert(
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+ is_same<typename __is_pathable<_InputIt>::__char_type, char8_t>::value ||
+# endif
+ is_same<typename __is_pathable<_InputIt>::__char_type, char>::value,
+ "u8path(Iter, Iter) requires Iter have a value_type of type 'char'"
+ " or 'char8_t'");
+ string __tmp;
+ const char __sentinel = char{};
+ for (; *__f != __sentinel; ++__f)
+ __tmp.push_back(*__f);
+ using _CVT = __widen_from_utf8<sizeof(wchar_t) * __CHAR_BIT__>;
+ std::wstring __w;
+ __w.reserve(__tmp.size());
+ _CVT()(back_inserter(__w), __tmp.data(), __tmp.data() + __tmp.size());
+ return path(__w);
+}
+# endif /* _LIBCPP_WIN32API */
+
+template <class _Source, __enable_if_t<__is_pathable<_Source>::value, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_DEPRECATED_WITH_CHAR8_T path u8path(const _Source& __s) {
+ static_assert(
+# ifndef _LIBCPP_HAS_NO_CHAR8_T
+ is_same<typename __is_pathable<_Source>::__char_type, char8_t>::value ||
+# endif
+ is_same<typename __is_pathable<_Source>::__char_type, char>::value,
+ "u8path(Source const&) requires Source have a character type of type "
+ "'char' or 'char8_t'");
+# if defined(_LIBCPP_WIN32API)
+ using _Traits = __is_pathable<_Source>;
+ return u8path(std::__unwrap_iter(_Traits::__range_begin(__s)), std::__unwrap_iter(_Traits::__range_end(__s)));
+# else
+ return path(__s);
+# endif
+}
+
+_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY_POP
+
+_LIBCPP_END_NAMESPACE_FILESYSTEM
+
+#endif // _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___FILESYSTEM_U8PATH_H