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28 lines
849 B
Plaintext
28 lines
849 B
Plaintext
@node ctime
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@section @code{ctime}
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@findex ctime
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POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ctime.html}
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Gnulib module: ---
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Portability problems fixed by Gnulib:
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@itemize
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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This function may overflow its internal buffer if an invalid year is passed.
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@item
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The @code{ctime} function need not be reentrant, and consequently is
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not required to be thread safe. Implementations of @code{ctime}
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typically write the time stamp into static buffer. If two threads
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call @code{ctime} at roughly the same time, you might end up with the
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wrong date in one of the threads, or some undefined string. There is
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a re-entrant interface @code{ctime_r}.
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@end itemize
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A more flexible function is @code{strftime}. However, note that it is
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locale dependent.
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