------------------------------------------------------------------------------ -- -- -- GNAT RUNTIME COMPONENTS -- -- -- -- A D A . S T R I N G S . W I D E _ U N B O U N D E D . A U X -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2005, 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- -- -- 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. -- -- -- -- 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. -- -- -- -- 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.Wide_Unbounded provides some specialized -- access functions which are intended to allow more efficient use of the -- facilities of Ada.Strings.Wide_Unbounded, particularly by other layered -- utilities. package Ada.Strings.Wide_Unbounded.Aux is pragma Preelaborate (Aux); function Get_Wide_String (U : Unbounded_Wide_String) return Wide_String_Access; pragma Inline (Get_Wide_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 function is much more efficient than the use of To_Wide_String -- since it avoids the need to copy the string. The lower bound of the -- referenced string returned by this call is always one. procedure Set_Wide_String (UP : in out Unbounded_Wide_String; S : Wide_String); pragma Inline (Set_Wide_String); -- This function sets the string contents of the referenced unbounded -- string to the given string value. It is significantly more efficient -- than the use of To_Unbounded_Wide_String with an assignment, since it -- avoids the necessity of messing with finalization chains. The lower -- bound of the string S is not required to be one. procedure Set_Wide_String (UP : in out Unbounded_Wide_String; S : Wide_String_Access); pragma Inline (Set_Wide_String); -- This version of Set_Wide_String takes a string access value, rather -- than string. The lower bound of the string value is required to be one, -- and this requirement is not checked. end Ada.Strings.Wide_Unbounded.Aux;