C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  starnge question          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message gouqizi.lvcha@gmail.com Guest Posted: Fri Jul 29, 2005 8:35 pm    Post subject: starnge question Hi, Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files in the project that use that class or I will get all kinds of strange run-time errors. Does anyone know the reasons? Thanks a lot! Rick Back to top Victor Bazarov Guest Posted: Fri Jul 29, 2005 8:37 pm    Post subject: Re: starnge question [email]gouqizi.lvcha (AT) gmail (DOT) com[/email] wrote: Quote: Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files in the project that use that class or I will get all kinds of strange run-time errors. Does anyone know the reasons? Is this a joke? Back to top Free Bird Guest Posted: Fri Jul 29, 2005 8:59 pm    Post subject: Re: starnge question Victor Bazarov wrote: Quote: gouqizi.lvcha (AT) gmail (DOT) com wrote: Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files in the project that use that class or I will get all kinds of strange run-time errors. Does anyone know the reasons? Is this a joke? Either that, or he's just extremely ignorant. Back to top gouqizi.lvcha@gmail.com Guest Posted: Fri Jul 29, 2005 9:03 pm    Post subject: Re: starnge question No. Victor Bazarov wrote: Quote: gouqizi.lvcha (AT) gmail (DOT) com wrote: Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files in the project that use that class or I will get all kinds of strange run-time errors. Does anyone know the reasons? Is this a joke? Back to top Ken Wilson Guest Posted: Fri Jul 29, 2005 9:08 pm    Post subject: Re: starnge question On Fri, 29 Jul 2005 20:59:05 -0000, "Free Bird" <@> did courageously avow: Quote: Victor Bazarov wrote: [email]gouqizi.lvcha (AT) gmail (DOT) com[/email] wrote: Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files in the project that use that class or I will get all kinds of strange run-time errors. Does anyone know the reasons? Is this a joke? Either that, or he's just extremely ignorant. And writing classes? Looks like fish bait to me. Ken Wilson "Coding, coding, over the bounding main()" Back to top Julián Albo Guest Posted: Fri Jul 29, 2005 9:35 pm    Post subject: Re: starnge question [email]gouqizi.lvcha (AT) gmail (DOT) com[/email] wrote: Quote: Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files You change "strange" for "starnge", for example? Try changing bigger bits. -- Salu2 Back to top Phlip Guest Posted: Fri Jul 29, 2005 9:45 pm    Post subject: Re: starnge question gouqizi.lvcha wrote: Quote: Sometimes, when I change a small bit of a class defined in a common header file shared by multiple files, I need to recompile all the files in the project that use that class or I will get all kinds of strange run-time errors. Does anyone know the reasons? Thanks a lot! Sorry about the local yokels. They forget that the learning curve to compile is non-obvious. You are probably compiling without an IDE that puts together all these files into build scripts automagically. If you compile on a command line, with g++, change a header, don't recompile everything, and link, you will get weird errors. That's because each time you change a header file, every C++ file using that header must recompile. The .o or .obj files don't see the new header automatically. From here, use Google to find a newsgroup that treats your compiler, and they will recommend the best editor and/or build scripts for it. -- Phlip http://www.c2.com/cgi/wiki?ZeekLand Back to top gouqizi.lvcha@gmail.com Guest Posted: Fri Jul 29, 2005 11:10 pm    Post subject: Re: starnge question Thanks, Philip, Your answer is quite helpful. I am using gcc and I need to get a better makefile. 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