gdb/testsuite/gdb.base/func-ptrs.c

   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 void
  19 sentinel (void)
  20 {
  21   return;
  22 }
  23
  24 int
  25 incr (int i)
  26 {
  27   sentinel ();
  28   return i + 1;
  29 }
  30
  31 int
  32 decr (int i)
  33 {
  34   sentinel ();
  35   return i - 1;
  36 }
  37
  38 int (*calc) (int) = incr;
  39
  40 int
  41 main (void)
  42 {
  43   int i = -1;
  44
  45   i = calc (i);
  46   i = calc (i);
  47   i = calc (i);
  48
  49   return i;
  50 }