std::filesystem::path::has_root_path, std::filesystem::path::has_root_name, std::filesystem::path::has_root_directory

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Filesystem library

Classes
filesystem::path filesystem::filesystem_error filesystem::directory_entry filesystem::directory_iterator filesystem::recursive_directory_iterator filesystem::file_status	filesystem::space_info filesystem::file_type filesystem::perms filesystem::copy_options filesystem::directory_options filesystem::file_time_type
Functions
filesystem::absolute filesystem::system_complete filesystem::canonical filesystem::copy filesystem::copy_file filesystem::copy_symlink filesystem::create_directory filesystem::create_directories filesystem::create_hard_link filesystem::create_symlink filesystem::create_directory_symlink filesystem::current_path filesystem::exists filesystem::equivalent	filesystem::file_size filesystem::hard_link_count filesystem::last_write_time filesystem::permissions filesystem::read_symlink filesystem::remove filesystem::remove_all filesystem::rename filesystem::resize_file filesystem::space filesystem::status filesystem::symlink_status filesystem::temp_directory_path
File types
filesystem::is_block_file filesystem::is_character_file filesystem::is_directory filesystem::is_empty filesystem::status_known	filesystem::is_fifo filesystem::is_other filesystem::is_regular_file filesystem::is_socket filesystem::is_symlink

 

std::filesystem::path

Member functions
path::path path::~path path::operator= path::assign path::append path::concatpath::operator += path::clear path::make_preferred path::remove_filename path::replace_filename path::replace_extension path::swap path::compare	path::c_strpath::nativepath::operator string_type path::stringpath::u8stringpath::u16stringpath::u32stringpath::wstring path::generic_stringpath::generic_u8stringpath::generic_u16stringpath::generic_u32stringpath::generic_wstring path::beginpath::end
Path decomposition
path::root_name path::root_directory path::root_path path::relative_path path::parent_path path::filename path::stem path::extension path::empty	path::has_root_pathpath::has_root_namepath::has_root_directorypath::has_relative_pathpath::has_parent_pathpath::has_filenamepath::has_stempath::has_extension path::is_absolutepath::is_relative
Non-member functions
swap(path)
hash_value
operator==operator!=operator<operator<=operator>operator>=
operator/
operator<<operator>>
u8path

 

bool has_root_path() const;	(1)	(since C++17)
bool has_root_name() const;	(2)	(since C++17)
bool has_root_directory() const;	(3)	(since C++17)
bool has_relative_path() const;	(4)	(since C++17)
bool has_parent_path() const;	(5)	(since C++17)
bool has_filename() const;	(6)	(since C++17)
bool has_stem() const;	(7)	(since C++17)
bool has_extension() const;	(8)	(since C++17)

Checks whether the path contains the corresponding path element.

1) Checks whether root_path() is empty.

2) Checks whether root_name() is empty.

3) Checks whether root_directory() is empty.

4) Checks whether relative_path() is empty.

5) Checks whether parent_path() is empty.

6) Checks whether filename() is empty.

7) Checks whether stem() is empty.

8) Checks whether extension() is empty.

Parameters

(none)

Return value

true if the corresponding path component is not empty, false otherwise.

Exceptions

(none)

See also

empty	checks if the path is empty (public member function)