G++ Exception Handling

[komyg]

Hi, I am rather new to C++ programming, but I have worked with Java for sometime.

The thing is that Java has a parent exception class from witch all other exceptions should derive from, therefore when you write a try/catch block you can basically catch any exceptions using the parent exception class.

Does g++ has something similar to this?

Also I've looked around the web seeking the answer to this problem and I found several people saying that Exception Handling on g++ was still under development. Is this still true? Is it safe to use exceptions in g++ or I should wait a while until they are more stable?

Thanks,
Komyg

 

[uolj]

Assuming you're using a recent version of g++, then you can use exceptions just fine.

g++ doesn't have a parent exception class, it is just a compiler. But C++ has one called std::exception. You don't have to use that, but it often makes sense to derive from it or other standard exception classes in <exception>. You should take a look.

 

[ArkM]

The problem is that no "predefined" exceptions parent in C++ (as uolj said), so third-party code (possibly) included in your project can throws any class (moreover, any type) exceptions.

Probably the only safe approach is:

try {
  // processing
} catch (MyExParentClass& e) {
  // your exceptions handler
} catch (...) {
  // unknown exception catched.
}

As far as I know no specific problems with exceptions in g++ implementation...