| 0,0 → 1,68 |
|---|
| /* |
| * gmtime.c |
| * Original Author: G. Haley |
| * |
| * Converts the calendar time pointed to by tim_p into a broken-down time |
| * expressed as Greenwich Mean Time (GMT). Returns a pointer to a structure |
| * containing the broken-down time, or a null pointer if GMT is not |
| * available. |
| */ |
| |
| /* |
| FUNCTION |
| <<gmtime>>---convert time to UTC traditional form |
| |
| INDEX |
| gmtime |
| INDEX |
| gmtime_r |
| |
| ANSI_SYNOPSIS |
| #include <time.h> |
| struct tm *gmtime(const time_t *<[clock]>); |
| struct tm *gmtime_r(const time_t *<[clock]>, struct tm *<[res]>); |
| |
| TRAD_SYNOPSIS |
| #include <time.h> |
| struct tm *gmtime(<[clock]>) |
| const time_t *<[clock]>; |
| struct tm *gmtime_r(<[clock]>, <[res]>) |
| const time_t *<[clock]>; |
| struct tm *<[res]>; |
| |
| DESCRIPTION |
| <<gmtime>> takes the time at <[clock]> representing the number |
| of elapsed seconds since 00:00:00 on January 1, 1970, Universal |
| Coordinated Time (UTC, also known in some countries as GMT, |
| Greenwich Mean time) and converts it to a <<struct tm>> |
| representation. |
| |
| <<gmtime>> constructs the traditional time representation in static |
| storage; each call to <<gmtime>> or <<localtime>> will overwrite the |
| information generated by previous calls to either function. |
| |
| RETURNS |
| A pointer to the traditional time representation (<<struct tm>>). |
| |
| PORTABILITY |
| ANSI C requires <<gmtime>>. |
| |
| <<gmtime>> requires no supporting OS subroutines. |
| */ |
| |
| #include <stdlib.h> |
| #include <time.h> |
| |
| #define _GMT_OFFSET 0 |
| |
| #ifndef _REENT_ONLY |
| |
| struct tm * |
| _DEFUN (gmtime, (tim_p), |
| _CONST time_t * tim_p) |
| { |
| _REENT_CHECK_TM(_REENT); |
| return gmtime_r (tim_p, (struct tm *)_REENT_TM(_REENT)); |
| } |
| |
| #endif |