Hi , Have a flag kind of variable and read each character and check for new line '\n' and store alternative lines by using flag in another file.
Thanks, Dhana On Tue, Dec 8, 2009 at 1:22 PM, Rafae Ashfaq <[email protected]> wrote: > > > simple...!!!!!!!!!! > > initialize them as array elements and then in tke other function display > them using "cout". > > --- On Tue, 12/8/09, samar aseeri > <[email protected]<samaraseeri%40yahoo.com>> > wrote: > > From: samar aseeri <[email protected] <samaraseeri%40yahoo.com>> > Subject: Re: [c-prog] Re: samar > To: [email protected] <c-prog%40yahoogroups.com> > Date: Tuesday, December 8, 2009, 4:04 AM > > > > what I want is if the first file has the following data > > 1 > 2 > 3 > 4 > 5 > 6 > 7 > 8 > 9 > > I want the following data to be copied to the other program > > 2 > 4 > 6 > 8 > > i.e copy the even lines > > --- On Tue, 8/12/09, Peter Nilsson <peternilsson42@ yahoo.com> wrote: > > From: Peter Nilsson <peternilsson42@ yahoo.com> > Subject: [c-prog] Re: samar > To: c-p...@yahoogroups. com > Date: Tuesday, 8 December, 2009, 4:29 AM > > > > samar aseeri <samaraseeri@ ...> wrote: > Subject: samar > > Please make your subject line describe the nature of your > post. Your name is far from a good description of the content. > > > the below attached program uses the argument command line > > the copy a file to another file. my question is what can I > > change in the program to make only part of the first file > > be copied to the second. > > Before you change the code, you first have to decide what > part you want to return. Is it a number of characters, a > a number of words, a numbr of lines, only every third > palindrome, ... what? > > > #include<stdio. h> > > int main(int argc, char *argv[]) > > { > > FILE *inFilePtr; /*input file pointer*/ > > FILE *outFilePtr; /*output fole pointer*/ > > int c,i; > > /*check number of command-line arguments */ > > if(argc != 3){ > > printf("Usage: mycopy infile outfile\n"); } /*end if*/ > > These messages are better off directed to stderr. > > > else /*if input file can be opened*/ > > { > > if((inFilePtr= fopen(argv[ 1],"r"))! =NULL) /*if input > > file can be opened*/ > > { if((outFilePtr =fopen(argv[ 2], "w")) != NULL) > > /*if output file can be opened*/ > > {while((c = fgetc(inFilePtr) ) !=EOF) /*read and > > output characters*/ > > That's your core loop. What you need is... > > while (...keep going condition... && (c = fgetc(inFilePtr) ) !=EOF) > > > { > > fputc(c,outFilePtr) ;}/*end while*/ > > }/*end if*/ > > else /*output file could not be opened*/ > > {printf("File\ "%s\" could not be opened\n", argv[2]); > > } /*end else*/ > > }/*end if*/ > > else /*input file could not be opened*/ > > { printf("File\ "%s\" coulk not be opened\n", argv[1]);} > > /*end else*/ > > ITYM could, not coulk. > > > } /*end else*/ > > return 0; /*indicates successful termination* / > > Which would be an ironic thing to return if it couldn't open > either stream. > > > }/*end main*/ > > -- > Peter > > New Email addresses available on Yahoo! > Get the Email name you've always wanted on the new @ymail and > @rocketmail. > Hurry before someone else does! > http://mail. promotions. yahoo.com/ newdomains/ aa/ > > [Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] > > > -- with Regards, Dhanaseelan Dhayalan, [There is a better way of Doing it !!! Find it !!!] [Non-text portions of this message have been removed]
