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------------------------------------------------------------------------------

--                                                                          --

--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --

--                                                                          --

--                      S Y S T E M . C O N C A T _ 3                       --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--            Copyright (C) 2008-2009, 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.                                     --

--                                                                          --

-- As a special exception under Section 7 of GPL version 3, you are granted --

-- additional permissions described in the GCC Runtime Library Exception,   --

-- version 3.1, as published by the Free Software Foundation.               --

--                                                                          --

-- You should have received a copy of the GNU General Public License and    --

-- a copy of the GCC Runtime Library Exception along with this program;     --

-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --

-- <http://www.gnu.org/licenses/>.                                          --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

pragma Compiler_Unit;

with System.Concat_2;

package body System.Concat_3 is

   pragma Suppress (All_Checks);

   ------------------

   -- Str_Concat_3 --

   ------------------

   procedure Str_Concat_3 (R : out String; S1, S2, S3 : String) is

      F, L : Natural;

   begin

      F := R'First;

      L := F + S1'Length - 1;

      R (F .. L) := S1;

      F := L + 1;

      L := F + S2'Length - 1;

      R (F .. L) := S2;

      F := L + 1;

      L := R'Last;

      R (F .. L) := S3;

   end Str_Concat_3;

   -------------------------

   -- Str_Concat_Bounds_3 --

   -------------------------

   procedure Str_Concat_Bounds_3

     (Lo, Hi     : out Natural;

      S1, S2, S3 : String)

   is

   begin

      System.Concat_2.Str_Concat_Bounds_2 (Lo, Hi, S2, S3);

      if S1 /= "" then

         Hi := S1'Last + Hi - Lo + 1;

         Lo := S1'First;

      end if;

   end Str_Concat_Bounds_3;

end System.Concat_3;