std::filesystem::directory_iterator::directory_iterator
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                    < cpp | filesystem | directory iterator
                    
                                                            
                    | directory_iterator(); | (1) | (since C++17) | 
| explicit directory_iterator( const std::filesystem::path& p ); | (2) | (since C++17) | 
| directory_iterator( const std::filesystem::path& p, std::error_code& ec ); | (3) | (since C++17) | 
| directory_iterator( const directory_iterator& ) = default; | (4) | (since C++17) | 
| directory_iterator( directory_iterator&& ) = default; | (5) | (since C++17) | 
Constructs a new directory iterator.
1) Constructs the end iterator.
2) Constructs a directory iterator that refers to the first directory entry of a directory identified by 
p. If p refers to an non-existing file or not a directory, returns the end iterator.[edit] Parameters
| This section is incomplete | 
[edit] Exceptions
1) 
noexcept specification:  
noexcept
  2) std::filesystem::filesystem_error if an error occurs. The exception object is constructed with 
p as an argument.3) 
noexcept specification:  
noexcept
  [edit] Notes
To iterate over the current directory, construct the iterator as directory_iterator(".") instead of directory_iterator("").


