Defined in header
Defines a type of object to be thrown as exception. It reports errors that are a consequence of faulty logic within the program such as violating logical preconditions or class invariants and may be preventable.
No standard library components throw this exception directly, but the exception types
std::invalid_argument, std::domain_error, std::length_error, std::out_of_range, std::future_error, and std::experimental::bad_optional_access are derived from
 Member functions
| constructs the exception object |
(public member function)
explicit logic_error( const std::string& what_arg );
explicit logic_error( const char* what_arg );
Constructs the exception object with
what_arg as explanatory string that can be accessed through what().
Because copying a standard library class derived from
std::exception is not permitted to throw exceptions, this message is typically stored internally as a separately-allocated reference-counted string. This is also why there is no constructor taking
std::string&&: it would have to copy the content anyway.
May throw std::bad_alloc