C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  remove characters from a string          C++Talk.NET Forum Index -> C++ language, library and standards View previous topic :: View next topic   Author Message seawind Guest Posted: Tue Aug 29, 2006 4:40 pm    Post subject: remove characters from a string I am a newer, and now i encounter a simple question. i want to erase all specified characters ,such as ',' , from a string. which function should i call? for example: string ls( "i ,am, a ,dog,"); thanks in advace --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ] Back to top Jens Theisen Guest Posted: Tue Aug 29, 2006 8:16 pm    Post subject: Re: remove characters from a string ===================================== MODERATOR'S COMMENT: I have allowed this message through as a reply to a previous post, but material of this form is generally off-topic; please do not continue this thread unless topical material (i.e., material related to standardization of C++) is involved. ===================================== END OF MODERATOR'S COMMENT seawind wrote: Quote: I am a newer, and now i encounter a simple question. i want to erase all specified characters ,such as ',' , from a string. which function should i call? for example: string ls( "i ,am, a ,dog,"); ls.erase(std::remove(ls.begin(), ls.end(), ','), ls.end()) This also works with other containers. It may seem weird, but it's the ususal way of doing it in the STL. You should get yourself a good book about the STL, because a reference alone isn't enough; you need to know some idioms and concepts. Jens --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ] Back to top seawind Guest Posted: Wed Aug 30, 2006 4:15 am    Post subject: Re: remove characters from a string ===================================== MODERATOR'S COMMENT: I'm approving this because it's a response to something that was already posted, but let's be careful to keep this discussion on-topic. This discussion is going in a direction that's not directly related to standardization. ------=_Part_12514_9434602.1156907695370 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline approve<br>comment<br>I'm approving this because it's a response to something that was already posted, but let's be careful to keep this discussion on-topic. This discussion is going in a direction that's not directly related to standardization. <br> ------=_Part_12514_9434602.1156907695370-- ===================================== END OF MODERATOR'S COMMENT According to what you said, i try it and it is ok, thank you for your help and your advice. and i try another algorithm remove as well. look like this, string ls(" i , am , dog"); remove(ls.begin(), ls.end(), ','); of course, i have used namespace std. and i get "i am dogog". i traced into the function,and found that in fact it calls remove_copy. --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ] Back to top Jens Theisen Guest Posted: Wed Aug 30, 2006 9:25 pm    Post subject: Re: remove characters from a string seawind wrote: Quote: of course, i have used namespace std. and i get "i am dogog". i traced into the function,and found that in fact it calls remove_copy. I'll post an answer to comp.lang.c++, as this is off topic here and the moderators are getting angry I think. :) Jens --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. 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