std::filesystem::recursive_directory_iterator::recursive_directory_iterator

 

C++

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Standard library headers

Named requirements

Feature test macros (C++20)

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Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

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Strings library

Containers library

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Ranges library (C++20)

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Numerics library

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Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Technical specifications

Symbols index

External libraries

 

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::perm_options filesystem::copy_options filesystem::directory_options filesystem::file_time_type
Functions
filesystem::absolute filesystem::canonicalfilesystem::weakly_canonical filesystem::relativefilesystem::proximate 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::recursive_directory_iterator

Member functions

recursive_directory_iterator::recursive_directory_iterator

recursive_directory_iterator::operator*recursive_directory_iterator::operator->

recursive_directory_iterator::options

recursive_directory_iterator::depth

recursive_directory_iterator::recursion_pending

recursive_directory_iterator::operator=

recursive_directory_iterator::incrementrecursive_directory_iterator::operator++

recursive_directory_iterator::pop

recursive_directory_iterator::disable_recursion_pending

Non-member functions

begin(std::filesystem::recursive_directory_iterator)end(std::filesystem::recursive_directory_iterator)

 

recursive_directory_iterator() noexcept;	(1)	(since C++17)
recursive_directory_iterator( const recursive_directory_iterator& rhs );	(2)	(since C++17)
recursive_directory_iterator( recursive_directory_iterator&& rhs ) noexcept;	(3)	(since C++17)
explicit recursive_directory_iterator( const std::filesystem::path& p );	(4)	(since C++17)
recursive_directory_iterator(   const std::filesystem::path& p,   std::filesystem::directory_options options );	(4)	(since C++17)
recursive_directory_iterator(   const std::filesystem::path& p,   std::filesystem::directory_options options,   std::error_code& ec );	(5)	(since C++17)
recursive_directory_iterator( const std::filesystem::path& p, std::error_code& ec );	(6)	(since C++17)

Contructs new recursive directory iterator.

1) Default constructor. Constructs an end iterator.

2) Copy constructor.

3) Move constructor.

4-6) Constructs a iterator that refers to the first entry in the directory that p resolves to.

Exceptions

The overload that does not take a std::error_code& parameter throws filesystem::filesystem_error on underlying OS API errors, constructed with p as the first path argument and the OS error code as the error code argument. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. Any overload not marked noexcept may throw std::bad_alloc if memory allocation fails.

Notes

Recursive directory iterators do not follow directory symlinks by default. To enable this behavior, specify directory_options::follow_directory_symlink among the options option set.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
LWG 3013	C++17	error_code overload marked noexcept but can allocate memory	noexcept removed