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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                                B U T I L                                 --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
-- for  more details.  You should have  received  a copy of the GNU General --
-- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license.          --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------
 
with Namet; use Namet;
 
package Butil is
 
--  This package contains utility routines for the binder
 
   function Is_Predefined_Unit return Boolean;
   --  Given a unit name stored in Name_Buffer with length in Name_Len,
   --  returns True if this is the name of a predefined unit or a child of
   --  a predefined unit (including the obsolescent renamings). This is used
   --  in the preference selection (see Better_Choice in body of Binde).
 
   function Is_Internal_Unit return Boolean;
   --  Given a unit name stored in Name_Buffer with length in Name_Len,
   --  returns True if this is the name of an internal unit or a child of
   --  an internal. Similar in usage to Is_Predefined_Unit.
 
   --  Note: the following functions duplicate functionality in Uname, but
   --  we want to avoid bringing Uname into the binder since it generates
   --  to many unnecessary dependencies, and makes the binder too large.
 
   function Uname_Less (U1, U2 : Unit_Name_Type) return Boolean;
   --  Determines if the unit name U1 is alphabetically before U2
 
   procedure Write_Unit_Name (U : Unit_Name_Type);
   --  Output unit name with (body) or (spec) after as required. On return
   --  Name_Len is set to the number of characters which were output.
 
end Butil;