public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/51459] [4.7 Regression] 'double free or corruption' involving std::function and lambdas Date: Thu, 08 Dec 2011 11:40:00 -0000 [thread overview] Message-ID: <bug-51459-4-d3lExrpKbm@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-51459-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51459 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-12-08 11:26:55 UTC --- sans library: struct func { virtual ~func() { } virtual void operator()() const = 0; virtual func* clone() const = 0; }; template<typename T> struct funcimpl : func { explicit funcimpl(T t) : t(t) { } void operator()() const { t(); } func* clone() const { return new funcimpl(*this); } T t; }; struct function { func* p; template<typename T> function(T t) : p(new funcimpl<T>(t)) { } ~function() { delete p; } function(const function& f) : p(f.p->clone()) { } function& operator=(const function& ) = delete; void operator()() const { (*p)(); } }; template <typename F> function animate(F f) { return [=]{ f(); }; } int main() { function linear1 = []{}; function av(animate(linear1)); av(); }
next prev parent reply other threads:[~2011-12-08 11:27 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-12-07 22:46 [Bug c++/51459] New: [4.6 Regression] 'double free or corruption' involving std::function, std::vector " kennytm at gmail dot com 2011-12-07 22:48 ` [Bug c++/51459] " kennytm at gmail dot com 2011-12-07 23:09 ` [Bug c++/51459] [4.7 Regression] 'double free or corruption' involving std::function " paolo.carlini at oracle dot com 2011-12-08 10:10 ` rguenth at gcc dot gnu.org 2011-12-08 11:40 ` redi at gcc dot gnu.org [this message] 2011-12-08 11:56 ` paolo.carlini at oracle dot com 2011-12-08 12:09 ` jakub at gcc dot gnu.org 2011-12-08 18:34 ` jason at gcc dot gnu.org 2011-12-08 22:32 ` jason at gcc dot gnu.org 2011-12-08 22:33 ` jason at gcc dot gnu.org
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=bug-51459-4-d3lExrpKbm@http.gcc.gnu.org/bugzilla/ \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@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: linkBe 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).