C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  fstream constructor          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Chris Theis Guest Posted: Mon Nov 28, 2005 12:57 pm    Post subject: fstream constructor Hello, as stated by the standard the fstream derivatives (ifstream & ofstream) expect a const char* parameter indicating the file name associated with the stream to be opened. I wondered why there is no constructor accepting a const string& parameter, which forces the user to convert any filename to an old C-style string before passing it to the constructor. Is this simply a historical legacy or is there some deeper problem, which I might fail to see. Probably somebody could shed some light on this issue. Thanks Chris Back to top Pete Becker Guest Posted: Mon Nov 28, 2005 1:53 pm    Post subject: Re: fstream constructor Chris Theis wrote: Quote: as stated by the standard the fstream derivatives (ifstream & ofstream) expect a const char* parameter indicating the file name associated with the stream to be opened. I wondered why there is no constructor accepting a const string& parameter, which forces the user to convert any filename to an old C-style string before passing it to the constructor. Is this simply a historical legacy or is there some deeper problem, which I might fail to see. Probably somebody could shed some light on this issue. There are seventeen functions in the C++ standard that take const char* but don't have analogs that take strings. Versions taking strings will probably be added in the next standard. -- Pete Becker Dinkumware, Ltd. (http://www.dinkumware.com) Back to top Chris Theis Guest Posted: Mon Nov 28, 2005 4:28 pm    Post subject: Re: fstream constructor "Pete Becker" <petebecker (AT) acm (DOT) org> wrote Quote: Chris Theis wrote: as stated by the standard the fstream derivatives (ifstream & ofstream) expect a const char* parameter indicating the file name associated with the stream to be opened. I wondered why there is no constructor accepting a const string& parameter, which forces the user to convert any filename to an old C-style string before passing it to the constructor. Is this simply a historical legacy or is there some deeper problem, which I might fail to see. Probably somebody could shed some light on this issue. There are seventeen functions in the C++ standard that take const char* but don't have analogs that take strings. Versions taking strings will probably be added in the next standard. Thanks Pete for confirming what I had already expected. I just had expected that the revision of the standard in 2003 would/could have introduced this, but naturally there are certainly more important things to cover. Cheers Chris 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.