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Re: Fwd: Bug#41144: incomplete or broken locale defns cause generalchaos


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> Date: Sun, 22 Aug 1999 14:28:34 -0700
> From: Joel Klecker <jk@espy.org>
> Cc: 41144-forwarded@bugs.debian.org
> 
> [ Forwarded from the Debian Bug-tracking system, please keep 
> 41144-forwarded@bugs.debian.org cc'ed so replies are recorded. ]
> 
> Is this a bug? Is it feasible to fix?
> 
> The data files are created using the install-locales makefile target.

This is a bug in 'date'.  You can work around it by writing something
like

date '+%p '

the manual says:

     _Warning:_ This convention for the return value which is prescribed
     in ISO C can lead to problems in some situations.  For certain
     format strings and certain locales the output really can be the
     empty string and this cannot be discovered by testing the return
     value only.  E.g., in most locales the AM/PM time format is not
     supported (most of the world uses the 24 hour time
     representation).  In such locales `"%p"' will return the empty
     string, i.e., the return value is zero.  To detect situations like
     this something similar to the following code should be used:

          buf[0] = '\1';
          len = strftime (buf, bufsize, format, tp);
          if (len == 0 && buf[0] != '\0')
            {
              /* Something went wrong in the strftime call.  */
              ...
            }

-- 
Geoffrey Keating <geoffk@cygnus.com>

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