std::filesystem::recursive_directory_iterator::pop

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void pop();
(1) (since C++17)
void pop( std::error_code & ec ) ;
(2) (since C++17)

Moves the iterator one level up in the directory hierarchy. Invalidates all copies of the previous value of *this.

If the parent directory is outside directory hierarchy that is iterated on (i.e. depth() == 0), sets *this

Parameters

ec - error code to store the error status to

Return value

(none)

Exceptions

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

2) Sets a std::error_code& parameter to the OS API error code if an OS API call fails, and executes ec. clear ()

Example