replace a line of a file

Hello,

we know that we can read the lines of a file by using fgetl or fgets. But i need a function that will replace the lines of a file by a string, just the opposite thing of fgetl. is there such a function? doing this work manually is tedious, so i need such a function. please help

-OBLI

Answer 1

[per isakson]

It might be possible to do it inplace with memmapfile. If the lines are the same length, etc. I would not try. Try

    loop over all lines
      fgetl
      if 
          fprintf
      else
          fprintf  
      end
    end

to a new file

[oblivious]

thanks a lot