WebIn C++, the std::exception class is the base class for all standard exceptions. It is defined in the header file and provides a consistent interface for handling exceptions in C++ programs.. The std::exception class defines a virtual function called what() that returns a null-terminated character string describing the exception. This function is typically … WebBy definition, a C++ abstract class must include at least one pure virtual function. Alternatively, put a function without a definition. Because the subclass would otherwise turn into an abstract class in and of itself, the abstract class's descendants must specify the pure virtual function.

Catching Base and Derived Classes as Exceptions in C++

WebApr 21, 2024 · They can be generated by creating a new class containing the attributes needed and throwing an instance of such a class, or by inheriting from std::exception … http://www.duoduokou.com/cplusplus/33739466036285877308.html how much sodium in salmon

Exception Handling using classes in C++ - GeeksforGeeks

WebYet there is a class member called what () which would suggest that some information can be passed. How can I (can I?) pass text to derived class of a std::exception in order to pass info with my exception class, so I can say somewhere in the code: throw … WebJan 31, 2011 · This isn't in the standard and you probably don't want to depend upon it. Your better bet is to never call std::exception::what from a derived class. Sure, do upcalls in … http://www.duoduokou.com/cplusplus/33739466036285877308.html how much sodium in school lunch chicken patty