gcc/ada/libgnat/a-stunau.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                          GNAT RUN-TIME COMPONENTS                        --
   4 --                                                                          --
   5 --            A D A . S T R I N G S . U N B O U N D E D . A U X             --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2023, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 package body Ada.Strings.Unbounded.Aux is
  33
  34    ----------------
  35    -- Get_String --
  36    ----------------
  37
  38    procedure Get_String
  39      (U : Unbounded_String;
  40       S : out Big_String_Access;
  41       L : out Natural)
  42    is
  43       X : aliased Big_String;
  44       for X'Address use U.Reference.all'Address;
  45
  46    begin
  47       S := X'Unchecked_Access;
  48       L := U.Last;
  49    end Get_String;
  50
  51    ----------------
  52    -- Set_String --
  53    ----------------
  54
  55    procedure Set_String
  56      (U      : out Unbounded_String;
  57       Length : Positive;
  58       Set    : not null access procedure (S : out String))
  59    is
  60       Old : String_Access := U.Reference;
  61    begin
  62       U.Last := Length;
  63       U.Reference := new String (1 .. Length);
  64       Set (U.Reference.all);
  65       Free (Old);
  66    end Set_String;
  67
  68 end Ada.Strings.Unbounded.Aux;