std::error_code::clear
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                    < cpp | error | error code
                    
                                                            
                    | void clear(); | (since C++11) | |
Replaces the error code and error category with default values.
Equivalent to *this = error_code(0, std::system_category()).
[edit] Parameters
(none)
[edit] Return value
(none)
[edit] Exceptions
noexcept specification:  
noexcept