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Re: including files only once


From: Anuradha Ratnaweera <anuradha@gnu.org>
Subject: including files only once
Date: Wed, 2 May 2001 11:50:22 +0600 (LKT)
Message-ID: <Pine.LNX.4.21.0105021148340.342-100000@presario>

> Is there a way to include a file only once with a method similar to C
> header files so that I can
> if not defined _include_file_flag_
> define _include_file_flag_
> contents of the file
> endif

  I don't know such a macro,
but '#use' includes a file only once.
Next 2 lines are equivalent,
except for this feature.

   #use type::category::file
   #include <category/file.type>

See 'man wml_p1_ipp' for detail.

-- Regards,
Nobuyuki Tsuchimura
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