Command line arguments activity solution

args.c

/*
 * atoi - read an integer from each argument,
 *        and print them to stdout. catch errors.
 *
 * usage: ./atoi [integer]...
 *
 * CS50, July 2017
 */

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

int main(const int argc, const char *argv[])
{
    int status = 0;

    for (int i = 1; i < argc; i++) {
        int tmp;
        printf("argument %d: ", i);
        if (sscanf(argv[i], "%d", &tmp) != 1) {
            printf("'%s' is not a valid integer\n", argv[i]);
        } else {
            printf("%d\n", tmp);
        }
    }

    return status;
}