public inbox for libstdc++@gcc.gnu.org
 help / color / mirror / Atom feed
From: Jonny Grant <jg@jguk.org>
To: libstdc++@gcc.gnu.org
Subject: libstdc++ Chapter 28. Demangling example
Date: Fri, 31 Mar 2023 16:24:14 +0100	[thread overview]
Message-ID: <03e9c7d6-95a0-bd2e-fa31-91919ad76f3f@jguk.org> (raw)

Hello

I tried out this code. Maybe I'm doing something wrong?

https://godbolt.org/z/Y78h4f1W6

https://gcc.gnu.org/onlinedocs/gcc-12.2.0/libstdc++/manual/manual/ext_demangling.html

However only get reduced output after status -2 is returned:

std::bad_exception	=> 

Looks like std::cout gets broken by the nullptr realname (that's a frustration). So I put an if(realname) in the godbolt link above.

Maybe it's also a good time to update the example abi::__cxa_demangle call from those 0 parameters to be NULL?

Cheers, Jonny

             reply	other threads:[~2023-03-31 15:24 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-31 15:24 Jonny Grant [this message]
2023-03-31 16:18 ` Jonathan Wakely
2023-03-31 20:38   ` Jonny Grant
2023-04-04 11:26     ` Jonathan Wakely
2023-04-12 15:09       ` Jonny Grant
2023-04-12 15:36         ` Jonathan Wakely
2023-04-12 16:07           ` Jonny Grant
2023-04-18 13:00             ` Jonny Grant
2023-04-18 14:49               ` Jonathan Wakely
2023-04-18 22:50                 ` Jonny Grant
2023-04-18 23:12                   ` Jonathan Wakely

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=03e9c7d6-95a0-bd2e-fa31-91919ad76f3f@jguk.org \
    --to=jg@jguk.org \
    --cc=libstdc++@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).