gdb/testsuite/gdb.cp/cpsizeof.cc

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2014-2023 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 struct Class
  19 {
  20   int a;
  21   char b;
  22   long c;
  23
  24   Class () : a (1), b ('2'), c (3) { }
  25 };
  26
  27 union Union
  28 {
  29   Class *kp;
  30   char a;
  31   int b;
  32   long c;
  33 };
  34
  35 enum Enum { A, B, C, D };
  36
  37 typedef unsigned char a4[4];
  38 typedef unsigned char a8[8];
  39 typedef unsigned char a12[12];
  40 typedef Class c4[4];
  41 typedef Union u8[8];
  42 typedef Enum e12[12];
  43
  44 #define T(N)                                    \
  45   N N ## obj;                                   \
  46   N& N ## _ref = N ## obj;                      \
  47   N* N ## p = &(N ## obj);                      \
  48   N*& N ## p_ref = N ## p;                      \
  49   int size_ ## N = sizeof (N ## _ref);          \
  50   int size_ ## N ## p = sizeof (N ## p_ref);    \
  51
  52 int
  53 main (void)
  54 {
  55   T (char);
  56   T (int);
  57   T (long);
  58   T (float);
  59   T (double);
  60   T (a4);
  61   T (a8);
  62   T (a12);
  63   T (Class);
  64   T (Union);
  65   T (Enum);
  66   T (c4);
  67   T (u8);
  68   T (e12);
  69
  70   return 0; /* break here */
  71 }