Re: Throwing Errors

From:
"Fred Zwarts" <F.Zwarts@KVI.nl>
Newsgroups:
comp.lang.c++
Date:
Wed, 17 Sep 2008 12:00:23 +0200
Message-ID:
<gaqkfo$jh6$1@aioe.org>
"Ruben" <ruben@www2.mrbrklyn.com> wrote in message =
news:pan.2008.09.16.23.44.24.196854@www2.mrbrklyn.com...

On Tue, 16 Sep 2008 12:50:26 -0700, Andrey Tarasevich wrote:
 

 
Same thing. The search for the matching handler is not in any way =

tied to

the data structures. It has nothing to do with inheritance or any =

other

relationships, like 'has-a'. As stated above, it is defined by the
run-time sequence of function call contexts.

 
but if one object is calling anoother object why is it not in the =

stack

An object does not call. An object cannot be called.

main calls a construstor which instantates an object which calls =

another

constructor which instantates another object which causes an error.


The constructor is a function. One function can call another function.
A constructor can call another constructor. In that case the first
constructor can "catch" exceptions "thrown" by the second constructor.
E.g.:

class FirstClass {
  AnotherClass AnotherObject;
  FirstClass (); // Constructor
};

FirstClass::FirstClass () try
   : AnotherObject () // Call construcor of another class
  {
   } catch (...) {
     // Handle exceptions in the construction of AnotherObject.
   }
}

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