At Tue, 11 Mar 2003 13:42:48 -0800,
Jeff Breidenbach wrote:
> The sample code now works in 2.3.1-14. Great!
>
> > #include <time.h>
> > #include <sched.h>
> >
> > main () {
> > return 0;
> > }
> >
> > gcc -o testcase -ansi -Werror testcase.c
>
> There still appears to be at least one bug in <time.h>.
> If I have __need_clockid_t defined, why does <time.h>
> define _TIME_H ?
>
> In other words, why is __need_clockid_t treated differently
> from __need_time_t, __need_clock_t and __need_timespec ?
I think checking __need_clockid_t (and __need_timer_t, so on)
is less meaning compared with __need_clock_t, __need_timespec.
For example, look at select.h, sys/types.h.
sys/types.h:
#ifdef __USE_XOPEN
# define __need_clock_t <-
#endif
#define __need_time_t <-
#define __need_timer_t
#define __need_clockid_t
#include <time.h> <-
select.h:
#define __need_time_t <-
#define __need_timespec <-
#include <time.h> <-
#define __need_timeval
#include <bits/time.h>
time.h:
#if (! defined __need_time_t && !defined __need_clock_t && \
! defined __need_timespec)
# define _TIME_H 1
# include <features.h>
Regards,
-- gotom
