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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [s-sopco3.adb] - Blame information for rev 706

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1 706 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT RUN-TIME COMPONENTS                         --
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--                                                                          --
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--           S Y S T E M . S T R I N G _ O P S _ C O N C A T _ 3            --
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--                                                                          --
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--                                 B o d y                                  --
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--                                                                          --
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--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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--  NOTE: This package is obsolescent. It is no longer used by the compiler
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--  which now generates concatenation inline. It is retained only because
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--  it may be used during bootstrapping using old versions of the compiler.
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pragma Compiler_Unit;
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package body System.String_Ops_Concat_3 is
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   ------------------
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   -- Str_Concat_3 --
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   ------------------
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   function Str_Concat_3 (S1, S2, S3 : String) return String is
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   begin
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      if S1'Length = 0 then
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         return S2 & S3;
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      else
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         declare
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            L12 : constant Natural := S1'Length + S2'Length;
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            L13 : constant Natural := L12 + S3'Length;
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            R : String (S1'First .. S1'First + L13 - 1);
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         begin
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            R (S1'First       .. S1'Last)            := S1;
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            R (S1'Last + 1    .. S1'First + L12 - 1) := S2;
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            R (S1'First + L12 .. R'Last)             := S3;
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            return R;
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         end;
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      end if;
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   end Str_Concat_3;
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end System.String_Ops_Concat_3;

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