C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  what is the difference between these two declarations          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Guybrush Threepwood Guest Posted: Thu Feb 26, 2004 9:09 pm    Post subject: what is the difference between these two declarations Hi, I was always wondering if there is any difference between void someFunction(int,int) and void someFunction(int A, int B) is there? Back to top Rolf Magnus Guest Posted: Thu Feb 26, 2004 9:18 pm    Post subject: Re: what is the difference between these two declarations Guybrush Threepwood wrote: Quote: Hi, I was always wondering if there is any difference between void someFunction(int,int) and void someFunction(int A, int B) is there? No difference. Back to top Leor Zolman Guest Posted: Thu Feb 26, 2004 9:29 pm    Post subject: Re: what is the difference between these two declarations On Thu, 26 Feb 2004 22:18:25 +0100, Rolf Magnus <ramagnus (AT) t-online (DOT) de> wrote: Quote: Guybrush Threepwood wrote: Hi, I was always wondering if there is any difference between void someFunction(int,int) and void someFunction(int A, int B) is there? No difference. ....assuming they're declarations and the OP simply omitted the semicolons inadvertently. If they're the first line of function /definitions/, however, there would certainly be a difference (in the first case, there'd be no way to access the parameters.) -leor Leor Zolman BD Software [email]leor (AT) bdsoft (DOT) com[/email] www.bdsoft.com -- On-Site Training in C/C++, Java, Perl & Unix C++ users: Download BD Software's free STL Error Message Decryptor at www.bdsoft.com/tools/stlfilt.html Back to top Mike Wahler Guest Posted: Thu Feb 26, 2004 9:29 pm    Post subject: Re: what is the difference between these two declarations "Guybrush Threepwood" <sales (AT) sco (DOT) com> wrote Quote: Hi, I was always wondering if there is any difference between void someFunction(int,int) and void someFunction(int A, int B) is there? None from the language perspective. However, using (meaningful) parameter names in a prototype can aid clarity. -Mike Back to top E. Robert Tisdale Guest Posted: Thu Feb 26, 2004 9:31 pm    Post subject: Re: what is the difference between these two declarations Guybrush Threepwood wrote: Quote: I was always wondering if there is any difference between void someFunction(int, int) and void someFunction(int A, int B) is there? The first can only be a declaration. The second could be the beginning of a definition. Back to top Joe Gottman Guest Posted: Thu Feb 26, 2004 9:47 pm    Post subject: Re: what is the difference between these two declarations "Mike Wahler" <mkwahler (AT) mkwahler (DOT) net> wrote Quote: "Guybrush Threepwood" <sales (AT) sco (DOT) com> wrote in message news:c1lnb4$3d0$2 (AT) news8 (DOT) svr.pol.co.uk... Hi, I was always wondering if there is any difference between void someFunction(int,int) and void someFunction(int A, int B) is there? None from the language perspective. However, using (meaningful) parameter names in a prototype can aid clarity. On the other hand, with some compilers not using parameter names can suppress "unused parameter" warning messages. Joe Gottman Back to top Leor Zolman Guest Posted: Thu Feb 26, 2004 10:27 pm    Post subject: Re: what is the difference between these two declarations On Thu, 26 Feb 2004 13:31:24 -0800, "E. Robert Tisdale" <E.Robert.Tisdale (AT) jpl (DOT) nasa.gov> wrote: Quote: Guybrush Threepwood wrote: I was always wondering if there is any difference between void someFunction(int, int) and void someFunction(int A, int B) is there? The first can only be a declaration. The second could be the beginning of a definition. Both can be declarations (and that's /all/ they'd be if you added a semicolon), and both can be the beginning of function definitions. There'd just be no way to get to the parameters in the first case. -leor Leor Zolman BD Software [email]leor (AT) bdsoft (DOT) com[/email] www.bdsoft.com -- On-Site Training in C/C++, Java, Perl & Unix C++ users: Download BD Software's free STL Error Message Decryptor at www.bdsoft.com/tools/stlfilt.html Back to top Nick Hounsome Guest Posted: Thu Feb 26, 2004 11:24 pm    Post subject: Re: what is the difference between these two declarations "Leor Zolman" <leor (AT) bdsoft (DOT) com> wrote Quote: On Thu, 26 Feb 2004 13:31:24 -0800, "E. Robert Tisdale" [email]E.Robert.Tisdale (AT) jpl (DOT) nasa.gov[/email]> wrote: Guybrush Threepwood wrote: I was always wondering if there is any difference between void someFunction(int, int) and void someFunction(int A, int B) is there? The first can only be a declaration. The second could be the beginning of a definition. Both can be declarations (and that's /all/ they'd be if you added a semicolon), and both can be the beginning of function definitions. There'd just be no way to get to the parameters in the first case. -leor There's even a common and reasonable use for a declaration and definition with no parameter name: operator++(int) - the post increment operator Quote: Leor Zolman BD Software [email]leor (AT) bdsoft (DOT) com[/email] www.bdsoft.com -- On-Site Training in C/C++, Java, Perl & Unix C++ users: Download BD Software's free STL Error Message Decryptor at www.bdsoft.com/tools/stlfilt.html Back to top Leor Zolman Guest Posted: Fri Feb 27, 2004 9:46 pm    Post subject: Re: what is the difference between these two declarations On Thu, 26 Feb 2004 23:24:19 -0000, "Nick Hounsome" <nh002 (AT) blueyonder (DOT) co.uk> wrote: Quote: "Leor Zolman" <leor (AT) bdsoft (DOT) com> wrote in message news:ress30p63cshtrr96pkrnvni8idl875n14 (AT) 4ax (DOT) com... On Thu, 26 Feb 2004 13:31:24 -0800, "E. Robert Tisdale" [email]E.Robert.Tisdale (AT) jpl (DOT) nasa.gov[/email]> wrote: Guybrush Threepwood wrote: I was always wondering if there is any difference between void someFunction(int, int) and void someFunction(int A, int B) is there? The first can only be a declaration. The second could be the beginning of a definition. Both can be declarations (and that's /all/ they'd be if you added a semicolon), and both can be the beginning of function definitions. There'd just be no way to get to the parameters in the first case. -leor There's even a common and reasonable use for a declaration and definition with no parameter name: operator++(int) - the post increment operator Sure. I use the mechanism in at least three different places in each version of my InitUtil library: http://www.bdsoft.com/tools/initutil.html In those cases, template parameters are only mined for their type information. -leor Leor Zolman BD Software [email]leor (AT) bdsoft (DOT) com[/email] www.bdsoft.com -- On-Site Training in C/C++, Java, Perl & Unix C++ users: Download BD Software's free STL Error Message Decryptor at www.bdsoft.com/tools/stlfilt.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 (comp.lang.c++) 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.