Bubble sorting an array

[dustatios]

Hi, I was wondering if anyone had any ideas on where I have been going wrong with my bubble sort. The aim of my code is to read a string of numbers and bubble sort the numbers into numerical order. I need this to happen with 3 lines of text read from a txt file.
I have been able to read the numbers successfully from the file and assign them to the 3 different arrays. I have then printed the line1 array to screen before the bubble sort and then after to see if it works. It hasn't I have tried two ways of bubble sorting, by using one example from the C progamming for dummies book which says that the bubble sort used is incompatible with a string obtained using fgets?!? I don't see how as its an array with values stored in it, I can't see why it would matter where they would have come from. Below is a different example of a bubble sort and it compiles but has a warning about a pointer, specifically: [Warning] passing argument 1 of 'fgets' from incompatible pointer type [enabled by default]. Below is my code if anyone could help it would be greatly appreciated.
Thanks :-)

#include <stdio.h>
#include <stdlib.h>


/* run this program using the console pauser or add your own getch, system("pause") or input loop */


int main() {
	
	int line1[64], line2[64], line3[64],  n, c, d, swap;
	
	FILE* numbers;
	numbers = fopen("list_read.txt", "r");
	
	fgets(line1, 64, numbers);
	
	fgets(line2, 64, numbers);


	fgets(line3, 64, numbers);
	
	printf("%s", line1);
	
for (c = 0; c < n; c++)
    
  for (c = 0 ; c < ( n - 1 ); c++)
  {
    for (d = 0 ; d < n - c - 1; d++)
    {
      if (strncmp(line1[d] > line1[d+1])) 
      {
        swap       = line1[d];
        line1[d]   = line1[d+1];
        line1[d+1] = swap;
      }
    }
  }
	printf("\n%s", line1);
	
	
	
	
	return 0;
}

[camel-man]

fgets is used for char arrays not Int arrays.
char *fgets(char *str, int n, FILE *stream); // prototype for fgets

That is where your warning is coming in.

EDIT: You need to look at the logic of your code on paper, for starters you have your loops going n times, and n is not even defined.

[dustatios]

Right cool thanks. Now I'm going to bin the bubble sort out for the moment. I can see where I'm going wrong from the beginning. The issue I now have is converting a char array to an int array. I tried using atoi, but the only problem is I found that I can only store the first number from the char array into a single int. Not the whole string from the char array into an int array. I've been having a look about and can't seem to find a way of doing this.

I keep trying to think if I could use fscanf to assign the first line of numbers to an int array. However surely if I had a loop it would continue reading the first line of numbers in the file and then drop down to the second line and keep reading/assigning to the array?!?

I basically have three lines of 6 numbers in a file (some multi digit). Each line I need to assign to an array and then bubble sort each line so the numbers in the array are then printed to screen in numerical order...

[vart]

use fgets to read line into some temporary buffer and then sscanf to fill your array based on values in the current line (or strtol in a loop)