C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Promotion converts long int to int implicitly ?          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Timothy Madden Guest Posted: Mon Sep 27, 2004 9:39 am    Post subject: Promotion converts long int to int implicitly ? Hello I have an overloaded function like this: BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, long); BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, int); And then I call the function like this: SetFieldValue(pRecordset, _T("Order"), long(i)+1); and the debugger shows that the int overload of my fuction is called. Is long( i ) + 1 not of type long ? Why is the int overload selected ? Thank you Timothy Madden Romania ----------------------------------------- And I don't wanna miss a thing Back to top Jacques Labuschagne Guest Posted: Mon Sep 27, 2004 9:53 am    Post subject: Re: Promotion converts long int to int implicitly ? Timothy Madden wrote: Quote: Hello I have an overloaded function like this: BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, long); BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, int); And then I call the function like this: SetFieldValue(pRecordset, _T("Order"), long(i)+1); and the debugger shows that the int overload of my fuction is called. Is long( i ) + 1 not of type long ? Why is the int overload selected ? This seems contrary to the standard, which says in section 5, point 9, item 7: "Otherwise, if either operand is long, the other shall be converted to long." Jacques. Back to top Victor Bazarov Guest Posted: Mon Sep 27, 2004 5:12 pm    Post subject: Re: Promotion converts long int to int implicitly ? Jacques Labuschagne wrote: Quote: Timothy Madden wrote: Hello I have an overloaded function like this: BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, long); BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, int); And then I call the function like this: SetFieldValue(pRecordset, _T("Order"), long(i)+1); and the debugger shows that the int overload of my fuction is called. Is long( i ) + 1 not of type long ? Why is the int overload selected ? This seems contrary to the standard, which says in section 5, point 9, item 7: "Otherwise, if either operand is long, the other shall be converted to long." It is contrary to the Standard, but it is also a bug in VC++ v 6. It was apparently fixed in v 7[.1] V Back to top Old Wolf Guest Posted: Mon Sep 27, 2004 9:10 pm    Post subject: Re: Promotion converts long int to int implicitly ? "Timothy Madden" <batman (AT) rmv (DOT) spam.home.ro> wrote: Quote: Hello I have an overloaded function like this: BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, long); BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, int); And then I call the function like this: SetFieldValue(pRecordset, _T("Order"), long(i)+1); and the debugger shows that the int overload of my fuction is called. Possibly your compiler has optimised away the 'long' overload, try turning off all optimisation and then tracking it again. Back to top Timothy Madden Guest Posted: Tue Sep 28, 2004 6:31 am    Post subject: Re: Promotion converts long int to int implicitly ? "Victor Bazarov" <v.Abazarov (AT) comAcast (DOT) net> wrote Quote: Jacques Labuschagne wrote: Timothy Madden wrote: Hello I have an overloaded function like this: BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, long); BOOL SetFieldValue(_RecordsetPtr, LPCTSTR, int); And then I call the function like this: SetFieldValue(pRecordset, _T("Order"), long(i)+1); and the debugger shows that the int overload of my fuction is called. Is long( i ) + 1 not of type long ? Why is the int overload selected ? This seems contrary to the standard, which says in section 5, point 9, item 7: "Otherwise, if either operand is long, the other shall be converted to long." It is contrary to the Standard, but it is also a bug in VC++ v 6. It was apparently fixed in v 7[.1] Oh, thank you very much !! I'm happy someone else knows about this problem. Can you tell me exactly what the bug is and where can I find a list with VC 6 bugs if it exists ? I did encounter other problems like this in my app Thank you Timothy Madden Romania ------------------------------------------------------------- And I don't wanna miss a thing 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.