Question

• Write a C program such that …
  • the program receives ( following argv[0] ) one or more integer values as command line arguments
  • the program prints (to standard output) …
    • the command line arguments, with each appearing on a separate line
    • the sum of the integer values that follow argv[0]
• Hints
  • http://www.cplusplus.com/reference/cstdlib/strtol

THE CORRECT OUTPUT OF THE TEST CASE :

The command line arguments are ...

argv[0] ... "./a.out"

argv[1] ... "2"

argv[2] ... "9"

argv[3] ... "-100"

argv[4] ... "6"

The sum of the integer values following argv[0] is ... -83.

Answer 1

#include <stdio.h>
#include <stdlib.h>
int main(int argc, char* argv[])
{
int sum = 0,temp;
for (int i = 1; i < argc; ++i)
{
printf("Arg %d %s\n",i,argv[i]);
temp = strtof(argv[i], NULL);
sum+=temp;
}
printf("The sum of the integer values following argv[0] is %d",sum);
return 0;
}