// file: lecture_06/example.cc
//
// This file demonstrates some simple atomic types in C/C++ used
// to do engineering mathematics.
//

// local include files
//
#include "example.h"

// method: main
//
// A simple driver program to demonstrate numeric representations.
//
int main(int argc, char** argv) {

  // print the program name
  //
  fprintf(stdout, "program name: %s\n", argv[0]);

  // logical variable
  //
  bool flag = false;
  fprintf(stdout, "the value of flag is %d\n", flag);  

  // char
  //
  char a = 'J';
  fprintf(stdout, "the value of a is %c\n", a);  

  unsigned char b = 3;
  fprintf(stdout, "the value of b is %d\n", b);  

  char c = -1;
  fprintf(stdout, "the value of c is %d\n", c);  

  short int s = -32768;
  fprintf(stdout, "the value of s is %d\n", s);  

  unsigned short int t = 65535;
  fprintf(stdout, "the value of t is %u\n", t);  

  signed int i = pow(2,31) - 1;
  fprintf(stdout, "the value of i is %u\n", i);  

  float joe = JOES_NUMBER;

  //  float x = 27.2727272727;
  //
  double x = 3e-37;
  x = x / pow(10, 9);
  fprintf(stdout, "the value of x is %e\n", x);  

  double y = 27.2727272727;
  fprintf(stdout, "the value of y is %f\n", y);  

  float v = 27.2727272727;
  fprintf(stdout, "the value of v is %f\n", v);  

  float z = M_PI;
  fprintf(stdout, "the value of z is %15.4e\n", z);  

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