std::underflow_error::underflow_error
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                    < cpp | error | underflow error
                    
                                                            
                    |   explicit underflow_error( const std::string& what_arg );  | 
(1) | |
|   explicit underflow_error( const char* what_arg );  | 
(2) | (since C++11) | 
Constructs the exception object with what_arg as explanatory string that can be accessed through what().
[edit] Parameters
| what_arg | - | explanatory string | 
[edit] Exceptions
(none)