ctime.h 2.4 KB

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  1. /*
  2. * Copyright (C) 2001-2003 by egnite Software GmbH. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. *
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. * 3. Neither the name of the copyright holders nor the names of
  14. * contributors may be used to endorse or promote products derived
  15. * from this software without specific prior written permission.
  16. *
  17. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18. * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  20. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  21. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  22. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  23. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  24. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  26. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  27. * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28. * SUCH DAMAGE.
  29. *
  30. * For additional information see http://www.ethernut.de/
  31. *
  32. */
  33. /*
  34. * Some constants for use in time conversion functions.
  35. *
  36. * $Log$
  37. * Revision 1.2 2003/11/24 18:05:11 drsung
  38. * first release
  39. *
  40. *
  41. */
  42. #ifndef __CTIME_H
  43. #define __CTIME_H
  44. #define _DAY_SEC (24UL * 60UL * 60UL) /* secs in a day */
  45. #define _YEAR_SEC (365L * _DAY_SEC) /* secs in a year */
  46. #define _FOUR_YEAR_SEC (1461L * _DAY_SEC) /* secs in a 4 year interval */
  47. #define _DEC_SEC 315532800UL /* secs in 1970-1979 */
  48. #define _BASE_YEAR 70L /* 1970 is the base year */
  49. #define _BASE_DOW 4 /* 01-01-70 was a Thursday */
  50. #define _LEAP_YEAR_ADJUST 17L /* Leap years 1900 - 1970 */
  51. #define _MAX_YEAR 138L /* 2038 is the max year */
  52. extern int _lpdays[];
  53. extern int _days[];
  54. extern tm _tb;
  55. int _isindst(tm * tb);
  56. #endif /* __CTIME_H */