arrays - Reading a file line by line in C -

I'm trying to write some code that opens a file, read its content line from line and from among these lines Store each array with an array.

First of all I open the file and count the number of lines, each row is of a certain length, so I just do this:

  char buf2 [ line length]; Int in2 = open ("toSend2", O_RDONLY); Int number_of_lines = 0; For (;;) {char * p2 = buf2; Int count = read (in2, p2, LINE_LENGTH); If (count> <0) {printf ("ERROR"); break; } Break (calculated == 0); NUMBER_OF_LINES ++; Printf ("Count:% d \ n", Count); Printf ("file2 row:% s", p2); Printf ("\ n"); } Off (in2);  

So far, it works well, number_of_lines is actually the number of rows in the "toend2" file and each of my printf lines are contained in that file.

Now with the number of lines, I create an array of stars and then basically go back to the whole file, but at this time, I would like to store every line in the array (possibly A better way to figure out is the number of rows in a file, but whatever I tried it failed!)

  char * array [number_of_lines]; Int b = 0; Int 3 = 0; In3 = open ("toSend2", O_RDONLY); For (;;) {char * p3 = buf3; Int count = read (in2, p3, LINE_LENGTH); If (count & lt; 0) {printf ("ERRORRRR"); break; } Break (calculated == 0); Array [b] = p3; B ++; Printf ("Count:% d \ n", Count); Printf ("FILE 2 LINEEEEEE:% s", P3); Printf ("\ n"); } Off (in3);  

This, of course, does not work: the last line and last line of each of my printf files is, for example, the first printf will be:

FILE 2 LINEEEEEEE: "The first line of the file" "the last line of the file"

And for the loop after that, when I find out the contents of my array, then I think the last line of every object bus file That's because it's the same pointer in the array all the time (towards that moment) Points to a different line) I put each time, but in the end it will point to the last line, so everything will be the last row.

How would I solve my problem?

ps: I have just started, so please assume I know the basic things about it too: (

• Use stdio, i.e. fopen () , fgets () and to I / O For fclose () you are using very low-level Pausx-style I / O for any good reason.
• You are assigned dynamically each new line To do this, you can use strdup ()
• Remember that things can be wrong; files may fail to open, lines may fail, read, and fail to allocate memory. Work accordingly.