namespace std { class overflow_error : public runtime_error { public: explicit overflow_error(const string& what_arg); explicit overflow_error(const char* what_arg); }; }
The class overflow_error defines the type of objects thrown as exceptions to report an arithmetic overflow error.
Effects: Constructs an object of class overflow_error.
Postcondition: strcmp(what(), what_arg.c_str()) == 0.
overflow_error(const char* what_arg);
Effects: Constructs an object of class overflow_error.
Postcondition: strcmp(what(), what_arg) == 0.