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| From | 88888 Dihedral <dihedral88888@googlemail.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: What about namespaces ? |
| Date | 2012-04-03 06:49 -0700 |
| Organization | http://groups.google.com |
| Message-ID | <9481328.80.1333460993743.JavaMail.geo-discussion-forums@pbcud3> (permalink) |
| References | <jleflk$kv0$1@speranza.aioe.org> |
Rui Maciel於 2012年4月3日星期二UTC+8下午5時25分10秒寫道： > When a C program grows, the odds that two identifier names will clash will > increase. So, unless the programmer has in place an effective policy to > name every identifier that is able to avoid any naming clash, including > thosed introduced by third-party code, the odds that this problem will > manifest itself will also become greater. > > This problem isn't particularly hard to avoid. A simple policy based on > adding a descriptive prefix to the identifier name tends to be enough for > most cases. Even in corner cases, such as possible name clashes between > incompatible versions of the same library, it is possible to sidestep this > by adding a reference to the library version to the prefix being used. > > Nonetheless, by relying on this method, identifier names tend to become a > bit verbose. This, in itself, isn't a major problem, but it isn't very > helpful either. After all, it tends to be preferable if it's possible to > call a function named do_stuff() instead of being forced to call another one > named package_name_version_library_task_do_stuff(), and long identifier > names tend to make some code constructs a bit hard to read. > > A possible way to cut on verbose identifier names would be to implement a > system where these prefixes could be left implied by the programmer in such > a way that, in a given context, a call to do_stuff() could unambiguously be > interpreted as a call to package_name_version_library_task_do_stuff(). This > could, hypothetically, be accomplished by letting programmers specify > exactly, both in declarations and definitions, which group of identifiers > would share a specific naming prefix, and then also specify in which block > these naming prefixes could be left implied. > > What I've described is, in essence, the concept of namespaces, which has > been a part of other programming languages, such as C++, for a long time > now. > > So, with this in mind, what are your thoughts on the idea of introducing > namespaces to the C programming language? Would it be a bad idea? > > > Rui Maciel I think one has to declare static variables in the file scope for those not to be exported and a package header for all extern variables in one's organization of c files can remedy the problem.
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What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 10:25 +0100
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-03 11:20 +0100
Re: What about namespaces ? Ian Collins <ian-news@hotmail.com> - 2012-04-03 22:29 +1200
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-03 12:38 +0100
Re: What about namespaces ? Keith Thompson <kst-u@mib.org> - 2012-04-03 12:19 -0700
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-03 20:57 +0100
Re: What about namespaces ? gordonb.9sh3w@burditt.org (Gordon Burditt) - 2012-04-03 06:23 -0500
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 19:54 +0100
Re: What about namespaces ? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-04-03 12:18 -0700
Re: What about namespaces ? jgharston <jgh@arcade.demon.co.uk> - 2012-04-03 13:09 -0700
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 19:54 +0100
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 19:54 +0100
Re: What about namespaces ? 88888 Dihedral <dihedral88888@googlemail.com> - 2012-04-03 06:49 -0700
Re: What about namespaces ? Robert Wessel <robertwessel2@yahoo.com> - 2012-04-03 11:10 -0500
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 20:12 +0100
Re: What about namespaces ? Ian Collins <ian-news@hotmail.com> - 2012-04-04 07:20 +1200
Re: What about namespaces ? Fritz Wuehler <fritz@spamexpire-201204.rodent.frell.theremailer.net> - 2012-04-03 20:58 +0200
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 21:05 +0100
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-03 21:33 +0100
Re: What about namespaces ? William Ahern <william@wilbur.25thandClement.com> - 2012-04-03 12:05 -0700
Re: What about namespaces ? James Kuyper <jameskuyper@verizon.net> - 2012-04-03 15:50 -0400
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-03 21:27 +0100
Re: What about namespaces ? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-04-03 14:40 -0700
Re: What about namespaces ? jgk@panix.com (Joe keane) - 2012-04-11 20:56 +0000
Re: What about namespaces ? Ben Pfaff <blp@cs.stanford.edu> - 2012-04-11 14:46 -0700
Re: What about namespaces ? jgk@panix.com (Joe keane) - 2012-04-11 23:03 +0000
Re: What about namespaces ? jgk@panix.com (Joe keane) - 2012-04-13 00:40 +0000
Re: What about namespaces ? Keith Thompson <kst-u@mib.org> - 2012-04-12 18:56 -0700
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-13 13:20 +0100
Re: What about namespaces ? Keith Thompson <kst-u@mib.org> - 2012-04-13 13:43 -0700
Re: What about namespaces ? jgk@panix.com (Joe keane) - 2012-04-15 16:46 +0000
Re: What about namespaces ? Martin Ambuhl <mambuhl@earthlink.net> - 2012-04-21 04:38 -0400
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-21 16:44 +0100
Re: What about namespaces ? "BartC" <bc@freeuk.com> - 2012-04-11 23:01 +0100
Re: What about namespaces ? jgk@panix.com (Joe keane) - 2012-04-13 21:04 +0000
Re: What about namespaces ? lawrence.jones@siemens.com - 2012-04-11 22:09 -0400
Re: What about namespaces ? Nomen Nescio <nobody@dizum.com> - 2012-04-12 10:55 +0200
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-04 00:17 +0100
Re: What about namespaces ? William Ahern <william@wilbur.25thandClement.com> - 2012-04-03 16:44 -0700
Re: What about namespaces ? nick_keighley_nospam@hotmail.com - 2012-04-04 00:49 -0700
Re: What about namespaces ? Ian Collins <ian-news@hotmail.com> - 2012-04-04 14:54 +1200
Re: What about namespaces ? Ian Collins <ian-news@hotmail.com> - 2012-04-04 15:43 +1200
Re: What about namespaces ? Ian Collins <ian-news@hotmail.com> - 2012-04-04 16:06 +1200
Re: What about namespaces ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-04-04 04:37 +0100
Re: What about namespaces ? Kaz Kylheku <kaz@kylheku.com> - 2012-04-04 18:43 +0000
Re: What about namespaces ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-04-05 01:43 +0100
Re: What about namespaces ? "io_x" <a@b.c.invalid> - 2012-04-04 09:32 +0200
Re: What about namespaces ? Tim Rentsch <txr@alumni.caltech.edu> - 2012-04-05 11:22 -0700
Re: What about namespaces ? Rui Maciel <rui.maciel@gmail.com> - 2012-04-05 21:04 +0100
Re: What about namespaces ? Kaz Kylheku <kaz@kylheku.com> - 2012-04-06 01:10 +0000
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