C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Which Memory Models to Support?          C++Talk.NET Forum Index -> C++ language, library and standards View previous topic :: View next topic   Author Message Glenn G. Chappell Guest Posted: Mon Mar 07, 2005 4:49 pm    Post subject: Which Memory Models to Support? I am wondering what the current thinking is on what memory models C++ will support in the future. In particular, last fall, on Artima, Chuck Allison asked for suggested updates for C++. I wrote the following, and I would like to know what people are thinking about these issues. --- Glenn G. Chappell wrote (on Artima): Quote: (1) Consider making a statement about what kinds of memory models C++ will support. Example: I have been involved a number of projects in which multiple processes had their own static spaces, but all had access to a shared arena. It seems the world is moving away from this, toward the multi-threaded model, in which every thread has the same static space. I don't have a problem with this move. But consider: I could make an STL container accessible to all processes by putting it in the shared arena and giving it a shared-memory allocator. However, I cannot use the Boost shared_ptr in this context, since it does dynamic allocation, but does not allow me to specify an allocator. I am not saying the Boost shared_ptr is "bad" (on the contrary, I think it is very much needed). I am saying that we need to think about things like this. Do we intend to support every memory model under the sun? If so, then any shared_ptr that gets added to the Standard Library needs to allow specification of an allocator. If not, then we should make a explicit statement about what memory models the Standard Library is intended to support. -- Glenn G. Chappell <>< Dept. of Mathematical Sciences University of Alaska Fairbanks --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.jamesd.demon.co.uk/csc/faq.html ] Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ language, library and standards All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.