Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.c++ > #6209
| From | Edek <edek.pienkowski@gmail.com> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: unions |
| Date | 2011-06-04 19:59 +0200 |
| Organization | ATMAN - ATM S.A. |
| Message-ID | <isdrr3$urc$1@node2.news.atman.pl> (permalink) |
| References | <iscfn1$keo$8@reader1.panix.com> |
Am I missing something about them? I > started to have deep doubts about what I thought I knew. > Other things aside, by the standard unions are the only possibility to alias two non-char types without breaking optimisations. Maybe void* is another and a couple of other strange cases. Don't ask me about where it is in the standard; I just know that it is a pain to find bugs caused by wrong casting coupled with unpredictable optimisation results (UB caused by casts really, unions are safe). Edek
Back to comp.lang.c++ | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
unions Ruben Safir <ruben@mrbrklyn.com> - 2011-06-04 05:26 +0000
Re: unions Ian Collins <ian-news@hotmail.com> - 2011-06-04 17:38 +1200
Re: unions Ruben Safir <ruben@mrbrklyn.com> - 2011-06-04 05:45 +0000
Re: unions Ian Collins <ian-news@hotmail.com> - 2011-06-04 18:04 +1200
Re: unions Ruben Safir <ruben@mrbrklyn.com> - 2011-06-04 06:13 +0000
Re: unions Öö Tiib <ootiib@hot.ee> - 2011-06-04 04:54 -0700
Re: unions Edek <edek.pienkowski@gmail.com> - 2011-06-04 19:59 +0200
Re: unions Vaclav Haisman <v.haisman@sh.cvut.cz> - 2011-06-04 20:13 +0200
Re: unions Edek <edek.pienkowski@gmail.com> - 2011-06-04 22:34 +0200
Re: unions Vaclav Haisman <v.haisman@sh.cvut.cz> - 2011-06-05 07:29 +0200
Re: unions Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-06-09 09:19 +0000
Re: unions Keith <kbelder@gmail.com> - 2011-06-09 11:17 -0700
Re: unions Victor Bazarov <v.bazarov@comcast.invalid> - 2011-06-09 14:29 -0400
Re: unions Edek <edek.pienkowski@gmail.com> - 2011-06-10 13:16 +0200
csiph-web