// exc5.c   example file  iteration, if then else

#include <stdio.h>  // needed to do input and output

int main(int argc, char *argv[]) // argc is count of command line arguments
                                 // argv is list of command line arguments
{
  double x = 2.0;             // declare test variable
  int i = 3;

  if(x < 3.0) // <  >  <=  >=  ==  !=  compare operations
  {
    printf("compare < > <= >= == != x=%e \n",x);
  }

  if(x > 3.0 || i == 3 && i > 2) //  || is or,  && is and
  {
    printf("logic || is or, && is and i=%d \n", i);
  }

  if( x > 3.0)
  {
    printf("x > 3.0 \n");
  }
  else if(i < 3)        // optional
  {
    printf("i < 3 \n");
  }
  else                  // optional, get here if none of the above true
  {
    printf("none of the above \n");
  } // end if  optional comment
  
  return 0;
} // end exc5.c   optional comment