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.


[edit] Parameters

ec - error code to store error status to

[edit] Return value


[edit] 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.

[edit] 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