DarkSide SQL Mini Version 1, The embedded database

// mydate.h
// defines a date type
// Date: 28 Aug 2003 12:04 AM
// Last Modified: 28 Aug 2003 12:04 AM
// Author: Vijay Mathew Pandyalakal

/* Copyright 2000 - 2005 Vijay Mathew Pandyalakal.  All rights reserved.
 *
 * This software may be used or modified for any purpose, personal or
 * commercial.  Open Source redistributions are permitted.  
 *
 * Redistributions qualify as "Open Source" under  one of the following terms:
 *   
 *    Redistributions are made at no charge beyond the reasonable cost of
 *    materials and delivery.
 *
 *    Redistributions are accompanied by a copy of the Source Code or by an
 *    irrevocable offer to provide a copy of the Source Code for up to three
 *    years at the cost of materials and delivery.  Such redistributions
 *    must allow further use, modification, and redistribution of the Source
 *    Code under substantially the same terms as this license.
 *
 * Redistributions of source code must retain the copyright notices as they
 * appear in each source code file, these license terms, and the
 * disclaimer/limitation of liability set forth as paragraph 6 below.
 *
 * Redistributions in binary form must reproduce this Copyright Notice,
 * these license terms, and the disclaimer/limitation of liability set
 * forth as paragraph 6 below, in the documentation and/or other materials
 * provided with the distribution.
 *
 * The Software is provided on an "AS IS" basis.  No warranty is
 * provided that the Software is free of defects, or fit for a
 * particular purpose.  
 *
 * Limitation of Liability. The Author shall not be liable
 * for any damages suffered by the Licensee or any third party resulting
 * from use of the Software.
 */



#ifndef _MYDATE_H 
#define _MYDATE_H


#define _MYDATE_VERSION 2

namespace openutils {

class MyDate {
    private:
    int m_nYear;
    int m_nMonth;
    int m_nDay; 

	int m_nOldYear;
	int m_nOldMonth;
	int m_nOldDay;

    public:
		// constrcutors
		MyDate();
		MyDate(const char* date);
		MyDate(int d,int m,int y);

		// set value functions
		void setDate(const char* date);
		void setYear(int y);
		void setMonth(int m);
		void setDay(int d);

		// get functions
		int getYear();
		int getMonth();
		int getDay();    
		string getShortMonth();
		void getFullMonth(char* ret);		
		string getDate();
		string getDate(const char* format);

		// arithmetic functions
		void addDays(int d);
		void addMonths(int m);
		void addYears(int y);		
		void lessDays(int d);
		void lessMonths(int m);
		void lessYears(int y);
		int differenceInDays(MyDate d);
		int differenceInMonths(MyDate d);
		int differenceInYears(MyDate d);
		
		// operators
		bool operator > (MyDate d);
		bool operator < (MyDate d);
		bool operator == (MyDate d);
		bool operator != (MyDate d);
		void operator = (MyDate d);
		void operator = (char* c);
		
		// overloaded comparison functions
		bool lesserThan(MyDate d) {
			return (*this < d);
		}
		bool greaterThan(MyDate d) {
			return (*this > d);
		}
		bool equals(MyDate d) {
			return (*this == d);
		}
		bool notEquals(MyDate d) {
			return (*this != d);
		}
		// utilities		
		bool isLeapYear();

    private:
		void validate();
		int getDaysInMonth();
		void correctDays();
		void restore();	
};

class MyDateException {
	private:
		string m_strErr;
	public:
		MyDateException() { m_strErr = ""; }
		MyDateException(string s) { m_strErr = s; }		
		string getMessage() { return m_strErr; }
	protected:
		void setMessage(string s) { m_strErr = s; }
	};

} // namespace myutils

#endif