C++ Arithmetics

#include <cstdio>
#include <cstdlib>

int main(int argc, char* argv[]) {
  printf("Simple integral arithmetics:\n");
  printf("1 + 1 = %d\n", 1 + 1);
  printf("3 * 3 = %d\n", 3 * 3);
  printf("5 - 8 = %d\n", 5 - 8);
  printf("18 / 5 = %d\n", 18 / 5);
  printf("18 %% 5 = %d\n", 18 % 5);
  printf("-18 / 5 = %d\n", -18 / 5);
  printf("-18 %% 5 = %d\n", -18 % 5);

  printf("\n\n");
  printf("Bit operations:\n");
  printf("1 | 5 = %d\n", 1 | 5);
  printf("3 & 7 = %d\n", 3 & 7);
  printf("5 ^ 8 = %d\n", 5 ^ 8);
  printf("~18 = %d\n", ~18);
  printf("18 >> 2 = %d\n", 18 >> 2);
  printf("5 << 3 = %d\n", 5 << 3);

  printf("\n\n");
  printf("Increments and so on:\n");

  int i = 10;
  ++i;
  printf("int i = 10; ++i;\n");
  printf("i = %d\n", i);
  printf("i++ = %d\n", i++);
  printf("--i = %d\n", --i);
  printf("(i += 10) = %d\n", i += 10);

  printf("\n\n");
  printf("Type cast:\n");
  printf("3 / 2 = %d\n", 3 / 2);
  printf("(double)(3) / 2 = %lf\n", (double)(3) / 2);

  printf("\n\n");
  printf("sizeof():\n");
  printf("sizeof(3 / 2) = %u\n", sizeof(3 / 2));
  printf("sizeof(3.0 / 2.0) = %u\n", sizeof(3.0 / 2.0));

  /*Output:
  Simple integral arithmetics:
  1 + 1 = 2
  3 * 3 = 9
  5 - 8 = -3
  18 / 5 = 3
  18 % 5 = 3
  -18 / 5 = -3
  -18 % 5 = -3


  Bit operations:
  1 | 5 = 5
  3 & 7 = 3
  5 ^ 8 = 13
  ~18 = -19
  18 >> 2 = 4
  5 << 3 = 40


  Increments and so on:
  int i = 10; ++i;
  i = 11
  i++ = 11
  --i = 11
  (i += 10) = 21


  Type cast:
  3 / 2 = 1
  (double)(3) / 2 = 1.500000


  sizeof():
  sizeof(3 / 2) = 4
  sizeof(3.0 / 2.0) = 8
  */



  /* Operators priority
  -a +a ~a (type) sizeof() ++ --
  * / %
  + -
  << >>
  &
  ^
  |
  = += -= etc

  */


  system("pause");
}