CODEWITHSUNDEEP
c++exception
Alexaaaaa
Alexaaaaa

Reputation: 57

Exception Classes in c++

So I know that an exception class can inherit from the std exception library, but what exactly does an exception class do? It throws exceptions and handles them, but why should I use a class? Can an exception class handle more than 1 type of object?

Upvotes: 0

Views: 178

Answers (1)

James Kanze
James Kanze

Reputation: 153919

There is no such thing as an "exception class" in C++; there are no constraints with regards to the type of what you can throw and catch. (throw 3.14159; is a perfectly legal C++ statement.) Good programming practice says that except in special cases, you should throw objects which inherit from std::exception, but this is not a requirement, and it's not unusual for programs to throw an int to trigger the end of program. (Calling exit doesn't invoke all of the destructors, so the program throws an int, which is caught and returned in main.)

Upvotes: 3

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