Reading a file line by line in C

Question

I am trying to write some code that will open a file, read its content line by line and store each of these lines into an array.

First I open the file and count the

Answer 1

You can use stat to get the file size. Then number_of_lines = stat.st_size/LINE_LENGTH

If you don't need your character strings nul-terminated, you can read the whole file into a single buffer. Set up the array of pointers if you really want them, or just use &buf[n * LINE_LENGTH] to get the start of line n.

To print a non-nul terminated string of known length, you can use:

printf("line %d = '%.*s'\n", n, LINE_LENGTH, &buf[n * LINE_LENGTH]);

Let me know in a comment if you want to see actual code.