| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- A D A . S T R I N G S . W I D E _ W I D E _ U N B O U N D E D . A U X -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2021, 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 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. -- |
| -- -- |
| -- 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.Wide_Wide_Unbounded provides some |
| -- specialized access functions which are intended to allow more efficient |
| -- use of the facilities of Ada.Strings.Wide_Wide_Unbounded, particularly by |
| -- other layered utilities. |
| |
| package Ada.Strings.Wide_Wide_Unbounded.Aux is |
| pragma Preelaborate; |
| |
| subtype Big_Wide_Wide_String is Wide_Wide_String (Positive); |
| type Big_Wide_Wide_String_Access is access all Big_Wide_Wide_String; |
| |
| procedure Get_Wide_Wide_String |
| (U : Unbounded_Wide_Wide_String; |
| S : out Big_Wide_Wide_String_Access; |
| L : out Natural); |
| pragma Inline (Get_Wide_Wide_String); |
| -- 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 procedure is more efficient than the use of To_Wide_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, so the actual |
| -- string data is always accessible as S (1 .. L). |
| |
| procedure Set_Wide_Wide_String |
| (UP : out Unbounded_Wide_Wide_String; |
| S : Wide_Wide_String) |
| renames Set_Unbounded_Wide_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_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_Wide_String |
| (UP : in out Unbounded_Wide_Wide_String; |
| S : Wide_Wide_String_Access); |
| pragma Inline (Set_Wide_Wide_String); |
| -- This version of Set_Wide_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_Wide_Unbounded.Aux; |
