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

directory_iterator& operator++(); directory_iterator& increment( std::error_code& ec );		(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

The overload that does not take a std::error_code& parameter throws filesystem_error on underlying OS API errors, constructed with 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.

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

Language
Standard Library Headers
Freestanding and hosted implementations
Named requirements
Language support library
Concepts library (C++20)
Diagnostics library
Utilities library
Strings library
Containers library
Iterators library
Ranges library (C++20)
Algorithms 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

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)