105 lines
3.4 KiB
C++
Executable File
105 lines
3.4 KiB
C++
Executable File
#ifndef __DATE_H
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#define __DATE_H
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#ifndef __OBJECT_H
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#include <object.h>
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#endif
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// @C
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// Classe TDate : TObject
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// @END
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#define TODAY -1
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#define ANSI -1
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enum TDate_order { gma_date, mga_date, amg_date };
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class TDate : public TObject
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{
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// @DPRIV
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long _val; // Valore data in formato packed
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// @DES Operatori esterni < > <= >= == !=
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// @FPUB
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friend bool operator <(const TDate& a, const TDate& b);
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friend bool operator >(const TDate& a, const TDate& b);
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friend bool operator <=(const TDate& a, const TDate& b);
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friend bool operator >=(const TDate& a, const TDate& b);
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friend bool operator ==(const TDate& a, const TDate& b);
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friend bool operator !=(const TDate& a, const TDate& b);
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public:
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// @FPUB
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char* string(int yeardgts = 4, char sep = '-', TDate_order ord = gma_date) const ;
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// @DES Ritorna la data in formato di stringa (anche in formato ANSI)
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// @FPUB
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int day() const ; // Ritorna il giorno
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int month() const ; // Ritorna il mese
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int year() const ; // Ritorna l'anno
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void addmonth(int nmonth = 1); // Aggiunge dei mesi
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void addyear(int nyear = 1); // Aggiunge degli anni
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bool ok() const; // Vero se la data e' corretta
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static bool isdate(const char*); // Vero se la stringa passata e' una data corretta
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static int last_day(int month, int year);
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bool is_end_month();
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void set_end_month(); // setta il giorno del mese all'ultimo possibile
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// implementando la filastrocchina
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void set_day(int n);
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void set_month(int n);
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void set_year(int n);
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// @DES Ridefiniti gli operatori: += -= ++ -- >> e <<
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// @FPUB
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TDate& operator +=(const long nday) { _val += nday; return *this; }
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TDate& operator -=(const long nday) { _val -= nday; return *this; }
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TDate& operator ++() { _val++; return *this; }
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TDate& operator --() { _val--; return *this; }
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void print_on(ostream& out) const ;
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void read_from(istream& in) ;
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operator long() const { return _val; }
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operator long*() { return &_val;}
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operator const char*() const ;
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TDate& operator =(const char* s);
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TDate& operator =(long val) { _val = val; return *this;}
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TDate& operator =(const TDate& d) { _val = d._val; return *this;}
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TDate(const TDate& d);
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TDate(long l);
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TDate(const char* s);
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TDate(int day = 0, int month = 0, int year = 0);
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};
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// @FPUB
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TDate& operator +(const TDate& a, long nday) ;
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TDate& operator +(const long nday, const TDate& b) ;
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TDate& operator -(const TDate& a, long nday) ;
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inline bool operator <(const TDate& a, const TDate& b) { return a._val < b._val;}
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inline bool operator >(const TDate& a, const TDate& b) { return a._val > b._val;}
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inline bool operator <=(const TDate& a, const TDate& b) { return a._val <= b._val;}
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inline bool operator >=(const TDate& a, const TDate& b) { return a._val >= b._val;}
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inline bool operator ==(const TDate& a, const TDate& b) { return a._val == b._val;}
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inline bool operator !=(const TDate& a, const TDate& b) { return a._val != b._val;}
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void swap(TDate& a, TDate& b) ; // Scambia la data a con la data b
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const TDate& fnc_min(const TDate& a, const TDate& b) ; // Ritorna la data piu' piccola tra a e b
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const TDate& fnc_max(const TDate& a, const TDate& b) ; // Ritorna la data piu' grande tra a e b
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// @END
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const char* itom(byte month); // Ritorna il nome del mese (1-12)
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const char* itow(byte dayofweek); // Ritorna il nome del giorno (1-7)
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// @DPUB
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const TDate botime(0,0,0), eotime(31,12,2050);
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// @END
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#endif // __DATE_H
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