gdb/testsuite/gdb.ada/unc_arr_ptr_in_var_rec/foo.adb

   1 --  Copyright 2012-2022 Free Software Foundation, Inc.
   2 --
   3 --  This program is free software; you can redistribute it and/or modify
   4 --  it under the terms of the GNU General Public License as published by
   5 --  the Free Software Foundation; either version 3 of the License, or
   6 --  (at your option) any later version.
   7 --
   8 --  This program is distributed in the hope that it will be useful,
   9 --  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 --  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 --  GNU General Public License for more details.
  12 --
  13 --  You should have received a copy of the GNU General Public License
  14 --  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 with Pck; use Pck;
  17
  18 procedure Foo is
  19
  20    type Table is array (Positive range <>) of Integer;
  21    type Table_Access is access Table;
  22
  23    type Object (N : Integer) is record
  24        Ptr  : Table_Access;
  25        Data : Table (1 .. N);
  26    end record;
  27
  28    My_Object : Object := (N => 3, Ptr => null, Data => (3, 5, 8));
  29
  30    --  Same as above, but with a pointer to an unconstrained packed array.
  31
  32    type Byte is range 0 .. 255;
  33
  34    type P_Table is array (Positive range <>) of Byte;
  35    pragma Pack (P_Table);
  36    type P_Table_Access is access P_Table;
  37
  38    type P_Object (N : Integer) is record
  39        Ptr  : P_Table_Access;
  40        Data : P_Table (1 .. N);
  41    end record;
  42
  43    My_P_Object : P_Object := (N => 3, Ptr => null, Data => (3, 5, 8));
  44
  45 begin
  46    My_Object.Ptr := new Table'(13, 21, 34);    -- STOP1
  47    My_P_Object.Ptr := new P_Table'(13, 21, 34);
  48    Do_Nothing (My_Object'Address);             -- STOP2
  49    Do_Nothing (My_P_Object'Address);
  50 end Foo;
  51