C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  number of words in a line          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Gary Wessle Guest Posted: Fri Jul 21, 2006 8:52 am    Post subject: number of words in a line hi I have a data file with equal number of columns for each row. I need to get the number of rows and columns to allocate a matrix in gsl. getline (in, line) and parse the line for the number of spaces then add one to get the number of words then number_of_rows = 1; while getline (in, line) and number_of_rows++ does the number of rows I am not sure how to go about the number of words task, is there a c++ approved regex for c++? because string word while(in >> word) count++ will go through the whole file. I just want one line. thanks Back to top Gary Wessle Guest Posted: Fri Jul 21, 2006 9:10 am    Post subject: Re: number of words in a line Gary Wessle <phddas (AT) yahoo (DOT) com> writes: Quote: hi I have a data file with equal number of columns for each row. I need to get the number of rows and columns to allocate a matrix in gsl. getline (in, line) and parse the line for the number of spaces then add one to get the number of words then number_of_rows = 1; while getline (in, line) and number_of_rows++ does the number of rows I am not sure how to go about the number of words task, is there a c++ approved regex for c++? because string word while(in >> word) count++ will go through the whole file. I just want one line. thanks I tried ifstream in(file_name.c_str()); string line = getline(in, line); stringstream input( line.c_str() ); string word; nCol = 0; while(inpput >> word) nCol++; did not do it Back to top Guest Posted: Sun Jul 23, 2006 8:00 am    Post subject: Re: number of words in a line asoofi (AT) purdue (DOT) edu wrote: Quote: Theoretically, all of C can be used in C++. This is absolutely false. 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.