// file: lecture_07/example.cc
//

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

// method: main
//
// main program starts here
//
int main(int argc, char** argv) {

  // grab the command line arguments
  //
  long i = atoi(argv[1]);
  long j = atoi(argv[2]);
  fprintf(stdout, "program name = %s\n", argv[0]);

  long k = i + j;
  fprintf(stdout, "k [%d] = i [%d] + j [%d]\n", k, i, j);

  long l = i - j;
  fprintf(stdout, "l [%d] = i [%d] - j [%d]\n", l, i, j);

  long m = i * j;
  fprintf(stdout, "m [%d] = i [%d] * j [%d]\n", m, i, j);

  long n = i / j;
  fprintf(stdout, "n [%d] = i [%d] / j [%d]\n", n, i, j);

  k = i + j - i - j + i + j + j;
  fprintf(stdout, "new value of k = %d\n", k);

  k = i * j + i;
  fprintf(stdout, "new value of k = %d\n", k);

  k = (i + j) * i;
  fprintf(stdout, "new value of k = %d\n", k);

  float x = i / (float)j + (float)i;
  fprintf(stdout, "*> x = %f\n", x);

  float nf = (float)i / (float)j;
  fprintf(stdout, "nf [%f] = i [%d] / j [%d]\n", nf, i, j);

  float arg1 = atof(argv[1]);
  float arg2 = atof(argv[2]);
  float sum = pow(arg1, arg2);
  fprintf(stdout, "pow(%f, %f) = %f\n", arg1, arg2, sum);

  fprintf(stdout, "%d %% %d = %d\n", i, j, i % j);
  fprintf(stdout, "%d %c %d = %d\n", i, '%', j, i % j);

  fprintf(stdout, "i before = %d\n", i);
  ++i;
  fprintf(stdout, "i after = %d\n", i);
  --i;
  fprintf(stdout, "i after = %d\n", i);

  long acc = 0;
  for (long alex = 0; alex < 10; alex++) {
    // acc = acc + alex;
    acc += alex;
    acc -= alex;
    fprintf(stdout, "%d\n", acc);
  }

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