#include <stdint.h>

/*
 * A base date structure that can easily represent any date necessary (in the Gregorian calendar).
 */

typedef struct sCDate {
  uint16_t year;
  unsigned year_sign : 1;
  unsigned month     : 4;
  unsigned mday      : 5;
  unsigned hour      : 5;
  unsigned min       : 6;
  unsigned sec       : 6;
  signed   offset    : 5;
  unsigned _padding  : 16; // to align unexpanded date to int boundary
} CDate;

typedef struct sXCDate {
  uint32_t year;
  unsigned year_sign : 1;
  unsigned month     : 4;
  unsigned mday      : 5;
  unsigned hour      : 5;
  unsigned min       : 6;
  unsigned sec       : 6;
  signed   offset    : 5;
} XCDate;