//****************************************************************** // SPECIFICATION FILE (time.h) // This file gives the specification of a Time abstract data type //****************************************************************** #ifndef TIME_H #define TIME_H class Time { public: void Set( /* in */ int hours, /* in */ int minutes, /* in */ int seconds ); // Precondition: // 0 <= hours <= 23 && 0 <= minutes <= 59 // && 0 <= seconds <= 59 // Postcondition: // Time is set according to the incoming parameters void Increment(); // Postcondition: // Time has been advanced by one second, with // 23:59:59 wrapping around to 0:0:0 void Write() const; // Postcondition: // Time has been output in the form HH:MM:SS Time( /* in */ int initHrs, /* in */ int initMins, /* in */ int initSecs ); // Precondition: // 0 <= initHrs <= 23 && 0 <= initMins <= 59 // && 0 <= initSecs <= 59 // Postcondition: // Class object is constructed // && Time is set according to the incoming parameters Time(); // Postcondition: // Class object is constructed && Time is 0:0:0 private: int hrs; int mins; int secs; }; #endif