Re: Necessity of multi-level error propogation

From:
"Alf P. Steinbach" <alfps@start.no>
Newsgroups:
comp.lang.c++
Date:
Thu, 12 Mar 2009 13:15:50 +0100
Message-ID:
<gpaudq$cse$1@news.motzarella.org>
* Jeff Schwab:

Alf P. Steinbach wrote:

* Jeff Schwab:

Alf P. Steinbach wrote:

* Jeff Schwab:

James Kanze wrote:

On Mar 11, 7:54 pm, peter koch <peter.koch.lar...@gmail.com> wrote:

The only know alternative to exceptions is return codes


For a very liberal meaning of "return code". You can use out
parameters, global variables (ever heard of errno?)


errno isn't a global variable


errno is a global variable.


That was true in POSIX.1, but would be completely unworkable in a
multithreaded environment.


I'm sorry but that's a meaningless statement/assertion; it's contrary
to readily available fact.


http://www.unix.org/whitepapers/reentrant.html

Scroll down to the section called "Redefinition of errno."


This is a newsgroup.

It's not a place to ask people to do things you want done.

If you have some argument, thebn make it: don't ask people to do things for you.

Cheers, & hth.,

- Alf

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