kc3-lang/gnulib/doc/posix-functions/localtime.texi

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• Hash : dd49d2f9
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  Date : 2020-12-31T19:14:49
  

  doc: mention year-0 bugs in Solaris etc.
  
  * doc/posix-functions/gmtime.texi, doc/posix-functions/gmtime_r.texi:
  * doc/posix-functions/localtime.texi:
  * doc/posix-functions/localtime_r.texi:
  * doc/posix-functions/mktime.texi:
  Mention year-0 bugs in localtime etc.
  

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• doc/posix-functions/localtime.texi

• @node localtime
  @section @code{localtime}
  @findex localtime
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime.html}
  
  Gnulib module: localtime
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  On native Windows platforms (mingw, MSVC), this function works incorrectly
  when the environment variable @code{TZ} has been set by Cygwin.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  On some platforms, this function loops forever for values
  near extrema (such as the year @math{-2**31}):
  Mac OS X 10.6.
  You can use the @code{time_rz} module to work around the problem.
  @item
  On some platforms, this function returns nonsense values for
  unsupported arguments (like @math{2^56}), rather than failing:
  FreeBSD 10.
  @item
  On some platforms, this function yields incorrect values for
  timestamps before the year 1:
  MacOS X 10.5, Solaris 11.3.
  @item
  Native Windows platforms (mingw, MSVC) support only a subset of time
  zones supported by GNU or specified by POSIX@.  @xref{tzset}.
  @end itemize
  

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