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- <title>time</title>
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- <h2 align=center>time</h2>
- <h4 align=center>OS/161 Reference Manual</h4>
- <h3>Name</h3>
- time - get time of day
- <h3>Library</h3>
- Standard C Library (libc, -lc)
- <h3>Synopsis</h3>
- #include <time.h><br>
- <br>
- time_t<br>
- time(time_t *<em>ptr</em>);
- <h3>Description</h3>
- The current time (in seconds since midnight GMT on January 1, 1970) is
- retrieved. If <em>ptr</em> is non-null, the time is stored through
- <em>ptr</em>. The time is also returned.
- <p>
- time is a wrapper around the system call
- <A HREF=../syscall/__time.html>__time</A>, which returns nanoseconds
- as well as seconds.
- <h3>Return Values</h3>
- time returns the time. On error, -1 is returned, and errno is set to
- indicate the error.
- <h3>Errors</h3>
- The following error is the only way time should be capable of failing.
- <blockquote><table width=90%>
- <td width=10%> </td><td> </td></tr>
- <tr><td>EFAULT</td> <td><em>ptr</em> was an invalid non-NULL
- address.</td></tr>
- </table></blockquote>
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