------------------------------------------------------------------------------
-- --
--- 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 --
-- --
-- S p e c --
-- --
--- 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, 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. --
-- This child package of Ada.Strings.Unbounded provides some specialized
-- access functions which are intended to allow more efficient use of the
-- facilities of Ada.Strings.Unbounded, particularly by other layered
--- utilities (such as GNAT.Patterns).
+-- utilities (such as GNAT.SPITBOL.Patterns).
package Ada.Strings.Unbounded.Aux is
-pragma Preelaborate (Aux);
+ pragma Preelaborate;
- function Get_String (U : Unbounded_String) return String_Access;
+ procedure Get_String
+ (U : Unbounded_String;
+ S : out String_Access;
+ L : out Natural);
pragma Inline (Get_String);
- -- This function returns the internal string pointer used in the
- -- representation of an unbounded string. There is no copy involved,
- -- so the value obtained references the same string as the original
- -- unbounded string. The characters of this string may not be modified
- -- via the returned pointer, and are valid only as long as the original
- -- unbounded string is not modified. Violating either of these two
- -- rules results in erroneous execution.
+ -- This procedure returns the internal string pointer used in the
+ -- representation of an unbounded string as well as the actual current
+ -- length (which may be less than S.all'Length because in general there
+ -- can be extra space assigned). The characters of this string may be
+ -- not be modified via the returned pointer, and are valid only as
+ -- long as the original unbounded string is not accessed or modified.
--
- -- This function is much more efficient than the use of To_String
+ -- This procedure is much more efficient than the use of To_String
-- since it avoids the need to copy the string. The lower bound of the
- -- referenced string returned by this call is always one.
+ -- referenced string returned by this call is always one, so the actual
+ -- string data is always accessible as S (1 .. L).
procedure Set_String (UP : in out Unbounded_String; S : String);
pragma Inline (Set_String);
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