| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1992-2021, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| package body Ada.Strings.Unbounded.Aux is |
| |
| ---------------- |
| -- Get_String -- |
| ---------------- |
| |
| procedure Get_String |
| (U : Unbounded_String; |
| S : out Big_String_Access; |
| L : out Natural) |
| is |
| X : aliased Big_String; |
| for X'Address use U.Reference.Data'Address; |
| begin |
| S := X'Unchecked_Access; |
| L := U.Reference.Last; |
| end Get_String; |
| |
| ---------------- |
| -- Set_String -- |
| ---------------- |
| |
| procedure Set_String |
| (U : out Unbounded_String; |
| Length : Positive; |
| Set : not null access procedure (S : out String)) |
| is |
| TR : constant Shared_String_Access := U.Reference; |
| DR : Shared_String_Access; |
| begin |
| -- Try to reuse existing shared string |
| |
| if Can_Be_Reused (TR, Length) then |
| Reference (TR); |
| DR := TR; |
| |
| -- Otherwise allocate new shared string |
| |
| else |
| DR := Allocate (Length); |
| U.Reference := DR; |
| end if; |
| |
| Set (DR.Data (1 .. Length)); |
| DR.Last := Length; |
| Unreference (TR); |
| end Set_String; |
| |
| end Ada.Strings.Unbounded.Aux; |
