Re: [Quantlib-dev] shared_ptr in Error class

[Luigi B. <lui...@gm...>]

On Apr 10, 2011, at 11:02 AM, Kakhkhor Abdijalilov wrote:
> I think smart pointer is not needed, since exception objects should be
> passed by reference. Following "less is more" principle the shared
> pointer to string could be replaced by a plain string.

They are caught by reference, but thrown by copy.  If you try compiling

class Foo {
   public:
     Foo() {}
   private:
     Foo(const Foo&);
};


int main() {
     try {
         throw Foo();
     catch (Foo&) {}
     return 0;
}

the compiler (well, gcc at least) will complain that the copy  
constructor is private at the "throw" line.

Luigi