Date library for C++

"This library provides with various functions to work on Dates ranging in the years 1-1-1950 to 31-12-2049, and also on different formats for printing and scanning dates. Functions available through this library are mentioned below"

Installation procedure for this library is given in releases section, please take a look before trying

• Day
• WeekDay
• WeekNumber
• Month
• Year
• DateFormat
• Date

• DateFormat

  • Members
    private char* dateFormat
    private char* monthFormat
    private char* yearFormat

  • Constructors
    DateFormat(const char* dateFormat, const char* monthFormat, const char* yearFormat);

    "Constructor for DateFormat for initialization of members to preferred values.
    Eg: DateFormat dFormat("dd","mm","yyyy");"

    DateFormat(const char* format);

    "Constructor for DateFormat where members get initialized to the format provided in format parameter.
    Eg: DateFormat dFormat("dd-mm-yyyy");"

    DateFormat();

    "Constructor with default format "dd-mmm-yy""

  • Members Accessibility Functions
    char* getdateFormat();

    "Members are private and hence cannot be accessible from outside the class scope, so this function provides with dateFormat copy"

    char* getmonthFormat();

    "This functions gives a copy of monthFormat String"

    char* getyearFormat();

    "This functions gives a copy of yearFormat String"

  • Swapping Operation
    void copy(DateFormat& dFormat);

    "Copies format from dFormat to current object and dFormat"

• Date

  • Members
    private Day day
    private Month mon
    private Year year
    private static DateFormat format

  • Constructors
    Date();

    "Default Constructor initializes current date to that day"

    Date(const Date& date);

    "Copy Constructor creates a copy of date object"

    Date(Day day,Month month,Year year);

    "Initializes current object members respectively"

    Date(const char* date);

    "Parses the date string in the format as in format member"

  • Assignment operators
    Date& operator=(const Date& date);

    "Copies date member values into Current Object"

    Date& operator++();

    "Gives the date of next Day and assigns it to current object"

    'Date& operator++(int);`

    "Gives the date of Same week Day in next week and assigns to current object"

    Date& operator--();

    "Gives the date of previous day and assigns it to current date"

    Date& operator--(int);

    "Gives the date of same week day in previous week and assigns it to current date"

  • Binary Arithmatic Operators
    unsigned int operator-(const Date& date);

    "Gives absolute no of days in between date and current date"

    Date operator+(int noOfDays);

    "Changes current object by noOfDays"

  • Cast Operators
    operator WeekNumber() const;

    "Gives the WeekNumber of the current Object"

    operator Month() const;

    "Gives the Month of the current Object"

    operator WeekDay() const;

    "Gives the WeekDay of current Object"

  • Relational Operators
    bool operator==(const Date& date);

    "Returns true if dates are equal else false"

    bool operator!=(const Date& date);

    "Returns true if date are not equal else false"

    bool operator<(const Date& date);

    "Returns true if current date is older to date else false"

    bool operator<=(const Date& date);

    "Returns true if current date is older or equal to date else false"

    bool operator>(const Date& date);

    "Returns true if current date is newer to date else false"

    bool operator>=(const Date& date);

    "Returns true if current date is newer or equal to date else false"

  • Format Function
    static void setFormat(DateFormat& dFormat);

    "Changes format of the format member of this class to dFormat"

    static DateFormat& getFormat();

    "Gets format of the format member of this class"

  • Basic I/O operations
    friend ostream& operator <<(ostream&,const Date&);

    "To output the Date in format given by format class"

    friend istream& operator >>(istream&,Date&);

    "To scan the Date in format given by format class"

  • Checking Functions
    bool leapYear() const;

    "returns true if current Object is leap year else false"

• Miscellaneous Functions
  char* mstr(Month m);

  "Returns String for the corresponding Month"

  char* wstr(WeekDay w);

  "Returns String for the corresponding WeekDay"

  Month cToMon(char* m);

  "Returns Month for the corresponding m string"

Exceptions

• invalid_argument

  "When the date value is more than 31 and month value is more than 12"

• domain_error

  "Thrown when the date as a triplet is invalid"
  "Eg: 30-02-2016 is an invalid date and hence throws domain_error"

• out_of_range

  "Thrown when the year of date goes beyond 2049 or goes less than 1950"