gdb/testsuite/gdb.base/recpar.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2012-2019 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 int
  19 foo (int n)
  20 {
  21   int val = n;
  22
  23   {
  24     char val = n ? 'y' : 'n'; /* Hides upper-level `val'.  */
  25
  26     if (val == 'y') /* BREAK */
  27       return n + foo (n - 1);
  28   }
  29
  30   return 0;
  31 }
  32
  33 int
  34 main (void)
  35 {
  36   int res = foo (5);
  37
  38   if (res != 15) /* Dummy use of variable res.  */
  39     return 1;
  40
  41   return 0;
  42 }