// file: lecture_20/myprog.cc
//
// local include files
//
#include <stdio.h>
#include <string.h>

#include "myprog.h"

// main: myprog
//
// This is a driver program that does some very simple things.
//
int main(int argc, const char** argv) {

  // declare an instance of a the structure "joe"
  //
  struct joe my_joe;
  JOE my_joe2;

  // assigning data
  //
  my_joe.x = 27.0;
  my_joe.a = 19;
  my_joe.c = 'a';
  my_joe.y = 99.0;
  my_joe.z = -1.0;
  my_joe.c2 = 'b';
  my_joe2.x = -99.0;
  my_joe2.y = -27.0;
  fprintf(stdout, "the value of my_joe.x is %f (%f)\n", my_joe.x, my_joe.y);

  // do something similar with shoe
  //
  struct shoe shoe1;
  MYSH shoe2;
  shoe1.foo = 'a';
  shoe1.y.x = 27.0;

  fprintf(stdout, "memory analysis:");
  fprintf(stdout, "the struct (my_joe) is at %u\n", &my_joe);
  fprintf(stdout, "the struct (my_joe2) is at %u\n", &my_joe2);
  fprintf(stdout, "x is at %u\n", &my_joe.x);
  fprintf(stdout, "a is at %u\n", &my_joe.a);
  fprintf(stdout, "c is at %u\n", &my_joe.c);
  fprintf(stdout, "y is at %u\n", &my_joe.y);
  fprintf(stdout, "z is at %u\n", &my_joe.z);
  fprintf(stdout, "c2 is at %u\n", &my_joe.c2);

  /*

  fprintf(stdout, "x is at %u\n", &my_joe2.x);

  fprintf(stdout, "the sizeof the struct is at %u\n", sizeof(my_joe));
  */

  // assign data as a pointer
  //
  JOE* foo = new JOE;
  JOE* mary = new JOE;

  foo->x = 99.0;
  foo->y = 27.0;
  fprintf(stdout, "the values are (my_joe: %f) (foo: %f)\n", my_joe.x, foo->x);

  // let's shoe shop
  //
  MYSH myshoe;
  myshoe.brand = (char*)"Nike";
  myshoe.size = (float)9.5;
  setsize(&myshoe);

  fprintf(stdout, "brand: %s\n", myshoe.brand);
  fprintf(stdout, "size: %f\n", myshoe.size);

  /*

  // memory packing
  //
  //fprintf(stdout, "my shoe is located at %u\n", &myshoe);
  //fprintf(stdout, "my shoe.size is located at %u\n", &myshoe.size);
  //fprintf(stdout, "my shoe.width is located at %u\n", &myshoe.width);

  // create an array of shoes
  //
  MYSH lots_of_shoes[99];
  lots_of_shoes[3].size = -2727.0;
  fprintf(stdout, "shoe no. 3: size = %f\n", lots_of_shoes[3].size);
  
  MYSH* jordan = new MYSH;
  jordan->size = -9999.0;
  jordan->brand = new char[99];
  strcpy(jordan->brand, (char*)"this is a test");
  fprintf(stdout, "jordan->.size = %f\n", jordan->size);
  fprintf(stdout, "jordan->brand = %s\n", jordan->brand);  

  MYSH* alex[3];
  alex[0] = new MYSH;
  alex[1] = new MYSH;
  alex[2] = new MYSH;
  alex[3] = new MYSH;
  

*/

  // exit gracefully
  //
  return(0);
}

// implement the print function
//
void setsize(shoe* shoe_a) {
  shoe_a->size = -2727.0;
  return;
}