/*
  Name:    ex13-5.c
  Purpose: finds the sum of all command line arguments
  Author:  Bill Slough

  Notes:
    1.  The atoi() function has been deprecated and should not be used for
        new code.  Use of strtol() is the preferred approach.

    2.  No error checking is performed; arguments are assumed to be integers!

    3.  Although not required, this program displays the value of the
        argc/argv data structure.
*/

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

int main(int argc, char *argv[ ]) {
    int i;
    int sum;

    /* how many arguments appear on the command line? */
    printf("argc = %d\n", argc);

    /* process each command line argument, skipping the 0th argument */
    i = 1;
    sum = 0;
    while (argv[i] != NULL) {
        printf("argv[%d] = \"%s\"\n", i, argv[i]);
        sum += atoi(argv[i]);
        i++;
    }
    printf("sum = %d\n", sum);
    
    return 0;
}