/* C demo program. Print # of arguments & argument values */
/* CSE 374 lecture, 1/24/11, HP */

#include <stdio.h>

/*
  Again we have the argc and argv parameters
  In this program we actually access them and 
  print them out.
*/

int main(int argc, char ** argv) {

  /* 
     Variable declaration, note that C does not provide default values.
     If you forget to initialize a variable before using it, you may 
     retrieve the junk that was sitting at that memory location.
  */

  int k;

  /*
    Another example of printf, the integer value of argc will replace the 
    %d before the string gets sent to printf.
  */

  printf("argc = %d\n", argc);

  /* 
     Typical for-loop, the 3 parts of ( Init ; Test ; Update )
     Without beginning and ending { } will take just the next executable 
     line as its body, even if it was not indented.
  */

  for (k = 0; k < argc; k++)
    /*
      The string here has 2 formatting commands, %d and %s, that will be 
      replaced by the values of k and argv[k] respectively before 
      the string is sent to printf.  argv[0] is the program itself, just
      like on the command line with scripts $0 is the script itself.
    */
    printf("argv[%d] = %s\n", k, argv[k]);

  return 0;
}