C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  types with names ending in _t          C++Talk.NET Forum Index -> C++ Language (Moderated) View previous topic :: View next topic   Author Message Michel Guest Posted: Sun Apr 17, 2005 3:39 pm    Post subject: types with names ending in _t Are typenames ending with _t eg Foo_t reserved? Are there any general advice of when they should or shouldn't be used? I tend to use it for typedefs and enums in my own namespaces. /Michel [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Maxim Yegorushkin Guest Posted: Mon Apr 18, 2005 9:07 am    Post subject: Re: types with names ending in _t On 17 Apr 2005 11:39:45 -0400, Michel <michel.andre (AT) swipnet (DOT) se> wrote: Quote: Are typenames ending with _t eg Foo_t reserved? Are there any general advice of when they should or shouldn't be used? I tend to use it for typedefs and enums in my own namespaces. They are reserved by POSIX. Please see http://www.gnu.org/software/libc/manual/html_node/Reserved-Names.html -- Maxim Yegorushkin [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Jack Klein Guest Posted: Mon Apr 18, 2005 9:10 am    Post subject: Re: types with names ending in _t On 17 Apr 2005 11:39:45 -0400, Michel <michel.andre (AT) swipnet (DOT) se> wrote in comp.lang.c++.moderated: Quote: Are typenames ending with _t eg Foo_t reserved? Are there any general advice of when they should or shouldn't be used? I tend to use it for typedefs and enums in my own namespaces. /Michel Only names actually defined by the C and C++ standards ending in _t are reserved. Note that the current C standard defines a lot of integer types, some required and some optional, in the C header <stdint.h>, ending in _t. This is not yet a part of C++ but almost certainly will be in the future. Even then, they would not be reserved unless you actually included <cstdint> as it would presumably be named in C++. The POSIX standard, IIRC, reserves all identifiers ending in _t, but that shouldn't be a problem as long is you keep them in their own namespaces and don't hoist them into the global namespace with overly broad using directives. -- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html comp.lang.c++ http://www.parashift.com/c++-faq-lite/ alt.comp.lang.learn.c-c++ http://www.contrib.andrew.cmu.edu/~ajo/docs/FAQ-acllc.html [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Gino van den Bergen Guest Posted: Mon Apr 18, 2005 11:04 am    Post subject: Re: types with names ending in _t Would it be fair to say that (future) reserved words ending with "_t" all start with a lower case character? It has been up until now. So, if you define your own types starting with an upper case character, you're cleared of potential future name clashes with reserved words? Gino Jack Klein wrote: Quote: On 17 Apr 2005 11:39:45 -0400, Michel <michel.andre (AT) swipnet (DOT) se> wrote in comp.lang.c++.moderated: Are typenames ending with _t eg Foo_t reserved? Are there any general advice of when they should or shouldn't be used? I tend to use it for typedefs and enums in my own namespaces. /Michel Only names actually defined by the C and C++ standards ending in _t are reserved. Note that the current C standard defines a lot of integer types, some required and some optional, in the C header stdint.h>, ending in _t. This is not yet a part of C++ but almost certainly will be in the future. Even then, they would not be reserved unless you actually included <cstdint> as it would presumably be named in C++. The POSIX standard, IIRC, reserves all identifiers ending in _t, but that shouldn't be a problem as long is you keep them in their own namespaces and don't hoist them into the global namespace with overly broad using directives. [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] 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 (Moderated) 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.