utilities.hpp

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#pragma once
 
#include <string>
 
#define Yes "Yes"
 
#define No "No"
 
 
#define INVALID_STATUS "Invalid Status"
 
using namespace std;
 
enum BookAvailability
{
    YES, 
    NO 
};
 
class utilities
{
private:
    /* data */
public:
    static const string status_tostring(BookAvailability status)
    {
        if (status == YES)
        {
            return Yes;
        }
        else if (status == NO)
        {
            return No;
        }
        else
        {
            throw INVALID_STATUS;
        }
    }
 
    static const BookAvailability status_toenum(string status)
    {
        if (status == Yes)
        {
            return YES;
        }
        else if (status == No)
        {
            return NO;
        }
        else
        {
            throw INVALID_STATUS;
        }
    }
};