CS 456 - Systems Programming Spring 2024

Displaying ./code/apr17/rpn.h

//include statements
#include <stdio.h>
#include <stdlib.h>


//define statements
#define MAXSIZE        100      // maximum size of stack

#define MAXOPSIZE       20      // maximum size of operand, operator
#define NUMBER          '0'     // indicates number found 
#define TOOBIG          '9'     // indicates string is too big 


// function prototypes
double push(double number);  // push number onto stack, returning pushed value
double pop();                // pop top value from stack
void clear_stack();          // reset stack to be empty


int getop(char *dest, int limit); //gets operand