#include <stdio.h>                                 // argvS.c
int main(int argc, char *argv[]) {
  char ** argp;
  argp = argv;
  while ( *argp != NULL ) {
    printf("argv[%d] = %p\t: ``%s''\n", argp - argv, *argp, *argp);
    argp++;
  }
  return 0;
}