BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Passing structure to a fucntion by Reference vs by Value          BorlandTalk.com Forum Index -> C++ Builder (Native API) View previous topic :: View next topic   Author Message Renald Yazmir Guest Posted: Tue Jul 25, 2006 12:59 am    Post subject: Passing structure to a fucntion by Reference vs by Value Hello, Are there any problems passing structure by value to a function? Can it be a problem for multiple recursive calls? My structure contains 10 doubles, 1 short and char arr[6]. Any memory restrictions? Thank you in advance Rony Back to top Dennis Jones Guest Posted: Tue Jul 25, 2006 1:56 am    Post subject: Re: Passing structure to a fucntion by Reference vs by Value "Renald Yazmir" <renald (AT) partmaker (DOT) com> wrote in message news:44c5268d (AT) newsgroups (DOT) borland.com... Quote: Hello, Are there any problems passing structure by value to a function? Can it be a problem for multiple recursive calls? My structure contains 10 doubles, 1 short and char arr[6]. Any memory restrictions? I guess I'd want to know why you would prefer to avoid passing by reference in the first place. Passing by reference (or by pointer) would almost certainly be more efficient, not to mention less likely to have an impact on recursive calls. However, having said that, since you're only talking about roughly 90 bytes, you're probably not going to run into any trouble anyway. - Dennis Back to top Ed Mulroy Guest Posted: Tue Jul 25, 2006 2:35 am    Post subject: Re: Passing structure to a fucntion by Reference vs by Value The program slows down by the amount of time it takes make a copy of the structure on the stack. If recursion is used then each time you recurse it again uses one structure-sized hunk of stack and delays for however long the copy takes for each iteration. Using a reference is normally a better way, especially if recursion is involved. .. Ed Quote: Renald Yazmir wrote in message news:44c5268d (AT) newsgroups (DOT) borland.com... Are there any problems passing structure by value to a function? Can it be a problem for multiple recursive calls? My structure contains 10 doubles, 1 short and char arr[6]. Any memory restrictions? 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