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time: Improve C99 compliance

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Quote from Linux Programmer's Manual:
  "If t is non-NULL, the return value is also stored in the memory
   pointed to by t."

Change-Id: I8cb66b67e5f34c536ce2f0db76a6dc337c42ea3f
Signed-off-by: Jim Huang <jserv@0xlab.org>
This commit is contained in:
Jim Huang 2011-06-16 22:40:10 +08:00 committed by Jim Huang
parent 4d9b75a9b0
commit 21edf366ea
1 changed files with 7 additions and 4 deletions
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11
libc/unistd/time.c
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@ -34,12 +34,15 @@ time_t
time(time_t *t)
{
struct timeval tt;
time_t ret;
if (gettimeofday(&tt, (struct timezone *)0) < 0)
return (-1);
if (t)
*t = (time_t)tt.tv_sec;
return (tt.tv_sec);
ret = -1;
else
ret = tt.tv_sec;
if (t != NULL)
*t = ret;
return ret;
}