------------------------------------------------------------------------------
-- --
--- GNAT RUNTIME COMPONENTS --
+-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . S T R I N G S . U N B O U N D E D . A U X --
-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2002, 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, 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. --
+-- 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. --
-- Get_String --
----------------
- function Get_String (U : Unbounded_String) return String_Access is
+ procedure Get_String
+ (U : Unbounded_String;
+ S : out String_Access;
+ L : out Natural)
+ is
begin
- if U.Last = U.Reference'Length then
- return U.Reference;
-
- else
- declare
- type Unbounded_String_Access is access all Unbounded_String;
-
- U_Ptr : constant Unbounded_String_Access := U'Unrestricted_Access;
- -- Unbounded_String is a controlled type which is always passed
- -- by copy it is always safe to take the pointer to such object
- -- here. This pointer is used to set the U.Reference value which
- -- would not be possible otherwise as U is read-only.
-
- Old : String_Access := U.Reference;
-
- begin
- U_Ptr.Reference := new String'(U.Reference (1 .. U.Last));
- Free (Old);
- return U.Reference;
- end;
- end if;
+ S := U.Reference;
+ L := U.Last;
end Get_String;
----------------
procedure Set_String (UP : in out Unbounded_String; S : String) is
begin
- if UP.Last = S'Length then
- UP.Reference.all := S;
-
- else
- declare
- subtype String_1 is String (1 .. S'Length);
- Tmp : String_Access;
-
- begin
- Tmp := new String'(String_1 (S));
- Finalize (UP);
- UP.Reference := Tmp;
- UP.Last := UP.Reference'Length;
- end;
+ if S'Length > UP.Last then
+ Finalize (UP);
+ UP.Reference := new String (1 .. S'Length);
end if;
+
+ UP.Reference (1 .. S'Length) := S;
+ UP.Last := S'Length;
end Set_String;
procedure Set_String (UP : in out Unbounded_String; S : String_Access) is