std::filesystem::directory_iterator::operator++, std::filesystem::directory_iterator::increment

 

C++

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Freestanding and hosted

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Standard library headers

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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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Filesystem library (C++17)

Regular expressions library (C++11)

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Execution support library (C++26)

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::directory_iterator

Member functions

directory_iterator::directory_iterator

directory_iterator::operator*directory_iterator::operator->

directory_iterator::operator=

incrementoperator++

Non-member functions

begin(std::filesystem::directory_iterator)end(std::filesystem::directory_iterator)

 

directory_iterator& operator++();	(1)	(since C++17)
directory_iterator& increment( std::error_code& ec );	(2)	(since C++17)

Advances the iterator to the next entry. Invalidates all copies of the previous value of *this.

Parameters

ec

-

error code to store error status to

Return value

*this

Exceptions

Any overload not marked noexcept may throw std::bad_alloc if memory allocation fails.

1) Throws std::filesystem::filesystem_error on underlying OS API errors, constructed with the OS error code as the error code argument.

2) Sets a std::error_code& parameter to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur.

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