[LTP] [RFC] [PATCH 2/2] tst_timer.h: Make time conversions saturated

[Jan Stancek <jstancek@redhat.com>]

----- Original Message -----
> The conversions of struct timeval and struct timespec to us and ms are
> now saturated so instead of overflowing/underflowing long long these
> return LLONG_MAX/LLONG_MIN.
> 
> This commit also adds tst_us_to_timespec(), tst_ms_to_timespec() and
> newlib_tests/tst_timer test to assert that the saturated conversion
> actually works.
> 
> Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
> ---

There's one issue I'm running into, default language std is older
than c99. So with plain configure && make, I fail on:
 ../include/tst_timer.h:86: error: ‘LLONG_MAX’ undeclared (first use in this function)
 ../include/tst_timer.h:89: error: ‘LLONG_MIN’ undeclared (first use in this function)

With CFLAGS="-std=gnu99" I run into one minor issue:
  clock_nanosleep01.c:64:17: error: initializer element is not constant
but after resolving that, all compiles.

---

What is reasoning behind these ifdefs?
 #if LONG_MAX > 0xffffffff

Regards,
Jan