#define STACKSIZE 100
#define INT 1
#define FLOAT 2
#define STRING 3
struct stackelement {
int etype;
union{
int ival;
float fval;
char *pavl; //pointer to string
} element;
};
struct stack
{
int top;// it is the index position of the top element.
struct stackelement items[STACKSIZE];
};
int main()
{
printf("this is the main loop");
return 0;
}