Reading csv file in C, strtok not returning what I am expecting?

Question

I am trying to write a C program to read a CSV file and calculate something and printing a line to the screen. However, the values I am storing in my array do not seem to match up with my input file.

For 1,2,2,3

I get an average of 50.0000000 printed to the screen. Can anyone offer some advice? Thank you.

#include <stdio.h>
#include <string.h>

int main (void) {
...
fclose(input);
}

Answer 1

*p is a character, so you are putting ASCII codes into data. You want the values these represent, or you can (which your later use of atof suggests) declare data to be an array of strings.