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std::exception

Inherited by __gnu_cxx::__concurrence_broadcast_error, __gnu_cxx::__concurrence_lock_error, __gnu_cxx::__concurrence_unlock_error, __gnu_cxx::__concurrence_wait_error, __gnu_cxx::forced_error, __gnu_cxx::recursive_init_error, std::bad_alloc, std::bad_cast, std::bad_exception, std::bad_function_call, std::bad_typeid, std::bad_weak_ptr, std::ios_base::failure, std::logic_error, and std::runtime_error.


virtual const char * what () const noexcept

Base class for all library exceptions.

This is the base class for all exceptions thrown by the standard library, and by certain language expressions. You are free to derive your own exception classes, or use a different hierarchy, or to throw non-class data (e.g., fundamental types).

Definition at line 60 of file exception.

Returns a C-style character string describing the general cause of the current error.

Reimplemented in std::bad_function_call, std::ios_base::failure, std::bad_typeid, std::bad_cast, std::runtime_error, std::future_error, std::bad_exception, std::logic_error, std::bad_weak_ptr, and std::bad_alloc.

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