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Diffstat (limited to 'gcc/ada/a-szunau.ads')
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1 files changed, 78 insertions, 0 deletions
diff --git a/gcc/ada/a-szunau.ads b/gcc/ada/a-szunau.ads new file mode 100644 index 000000000..6115330d9 --- /dev/null +++ b/gcc/ada/a-szunau.ads @@ -0,0 +1,78 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 1992-2009, 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 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; |