------------------------------------------------------------------------------
-- --
--- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . S T R I N G _ O P S --
-- --
-- B o d y --
-- --
--- $Revision: 1.8 $ --
--- --
--- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, 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 2, or (at your option) any later ver- --
+-- 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 COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
+-- NOTE: This package is obsolescent. It is no longer used by the compiler
+-- which now generates concatenation inline. It is retained only because
+-- it may be used during bootstrapping using old versions of the compiler.
+
+pragma Compiler_Unit;
+
package body System.String_Ops is
----------------
function Str_Concat (X, Y : String) return String is
begin
- if X'Length <= 0 then
+ if X'Length = 0 then
return Y;
else
function Str_Concat_SC (X : String; Y : Character) return String is
begin
- if X'Length <= 0 then
+ if X'Length = 0 then
return (1 => Y);
else
end if;
end Str_Concat_SC;
- ---------------
- -- Str_Equal --
- ---------------
-
- function Str_Equal (A, B : String) return Boolean is
- begin
- if A'Length /= B'Length then
- return False;
-
- else
- for J in A'Range loop
- if A (J) /= B (J + (B'First - A'First)) then
- return False;
- end if;
- end loop;
-
- return True;
- end if;
- end Str_Equal;
-
- -------------------
- -- Str_Normalize --
- -------------------
-
- procedure Str_Normalize (A : in out String) is
- begin
- for J in A'Range loop
- A (J) := Character'Last;
- end loop;
- end Str_Normalize;
-
- ------------------------
- -- Wide_Str_Normalize --
- ------------------------
-
- procedure Wide_Str_Normalize (A : in out Wide_String) is
- begin
- for J in A'Range loop
- A (J) := Wide_Character'Last;
- end loop;
- end Wide_Str_Normalize;
-
end System.String_Ops;
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