Re: exception and global variable
* George2:
Bjarne mentioned in his book, that there is no way to catch exceptions
from the initialization of global variables (section 14.7). But I do
not think it is true, because we can add function try block to its
constructor, and catch appropriate types of exceptions or using
catch(...) to catch all exceptions.
Am I correct? Any comments?
Depends what you mean by "catch".
In a function try-block you can choose to throw some other exception, or
the original, but throw you must -- or else it's done automatically.
So a function try-block doesn't stop the exception: you can in one sense
"catch", but you can't safely "get rid of", because that exception has
an absolutely irresistible urge to move onward, it's a tiger that's very
set on burrowing its fangs in your neck, once it recognizes that it's in
your proximity. In order to prevent that you can use devious trickery
or absolute destruction. Trickery: fool that tiger into believing it's
not yet reached you, by way of never escaping from that catch clause,
just calling something that continues doing what the program does, in
essence riding the tiger, which is dangerous and not recommended.
Absolute destruction: terminate. But in the general sense of catching
the exception and moving on with normal business & life, no you can't.
Cheers, & hth.,
- Alf
PS: George, can you please start giving references to your quotes and
paraphrases? Bjarne has written many books. With many editions.
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