src/api/time.c

   1 #include <time.h>
   2 #define T(t) (t*)0;
   3 #define F(t,n) {t *y = &x.n;}
   4 #define C(n) switch(n){case n:;}
   5 static void f()
   6 {
   7 T(clock_t)
   8 T(size_t)
   9 T(time_t)
  10 #ifdef _POSIX_C_SOURCE
  11 T(clockid_t)
  12 T(timer_t)
  13 T(locale_t)
  14 T(pid_t)
  15 T(struct sigevent)
  16 {
  17 struct timespec x;
  18 F(time_t,tv_sec)
  19 F(long,tv_nsec)
  20 }
  21 {
  22 struct itimerspec x;
  23 F(struct timespec,it_interval)
  24 F(struct timespec,it_value)
  25 }
  26 C(CLOCK_MONOTONIC)
  27 C(CLOCK_PROCESS_CPUTIME_ID)
  28 C(CLOCK_REALTIME)
  29 C(CLOCK_THREAD_CPUTIME_ID)
  30 #endif
  31 {
  32 struct tm x;
  33 F(int,tm_sec)
  34 F(int,tm_min)
  35 F(int,tm_hour)
  36 F(int,tm_mday)
  37 F(int,tm_mon)
  38 F(int,tm_year)
  39 F(int,tm_wday)
  40 F(int,tm_yday)
  41 F(int,tm_isdst)
  42 }
  43 {void *x = NULL;}
  44 {int x = CLOCKS_PER_SEC;}
  45 C(TIMER_ABSTIME)
  46 {char*(*p)(const struct tm*) = asctime;}
  47 {clock_t(*p)(void) = clock;}
  48 {char*(*p)(const time_t*) = ctime;}
  49 {double(*p)(time_t,time_t) = difftime;}
  50 {struct tm*(*p)(const time_t*) = gmtime;}
  51 {struct tm*(*p)(const time_t*) = localtime;}
  52 {time_t(*p)(struct tm*) = mktime;}
  53 {size_t(*p)(char*restrict,size_t,const char*restrict,const struct tm*restrict) = strftime;}
  54 {time_t(*p)(time_t*) = time;}
  55 #ifdef _POSIX_C_SOURCE
  56 {char*(*p)(const struct tm*restrict,char*restrict) = asctime_r;}
  57 {int(*p)(pid_t,clockid_t*) = clock_getcpuclockid;}
  58 {int(*p)(clockid_t,struct timespec*) = clock_getres;}
  59 {int(*p)(clockid_t,struct timespec*) = clock_gettime;}
  60 {int(*p)(clockid_t,int,const struct timespec*,struct timespec*) = clock_nanosleep;}
  61 {int(*p)(clockid_t,const struct timespec*) = clock_settime;}
  62 {char*(*p)(const time_t*,char*) = ctime_r;}
  63 {struct tm*(*p)(const time_t*restrict,struct tm*restrict) = gmtime_r;}
  64 {struct tm*(*p)(const time_t*restrict,struct tm*restrict) = localtime_r;}
  65 {int(*p)(const struct timespec*,struct timespec*) = nanosleep;}
  66 {size_t(*p)(char*restrict,size_t,const char*restrict,const struct tm*restrict,locale_t) = strftime_l;}
  67 {int(*p)(clockid_t,struct sigevent*restrict,timer_t*restrict) = timer_create;}
  68 {int(*p)(timer_t) = timer_delete;}
  69 {int(*p)(timer_t) = timer_getoverrun;}
  70 {int(*p)(timer_t,struct itimerspec*) = timer_gettime;}
  71 {int(*p)(timer_t,int,const struct itimerspec*restrict,struct itimerspec*restrict) = timer_settime;}
  72 {char **x = tzname;}
  73 {void(*p)(void) = tzset;}
  74 #endif
  75 #ifdef _XOPEN_SOURCE
  76 {struct tm*(*p)(const char*) = getdate;}
  77 {int i = getdate_err;}
  78 {char*(*p)(const char*restrict,const char*restrict,struct tm*restrict) = strptime;}
  79 {long i = timezone;}
  80 {int i = daylight;}
  81 #endif
  82 }