gdb/testsuite/gdb.base/nested-subp2.c

   1 /* This test program is part of GDB, the GNU debugger.
   2
   3    Copyright 2015-2020 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 iter_str (const char *str, void (*callback) (char c))
  20 {
  21   for (; *str != '\0'; ++str)
  22     callback (*str);
  23 }
  24
  25 int
  26 length_str (const char *str)
  27 {
  28   int count = 0;
  29
  30   void
  31   increment (char c)
  32   {
  33     /* Here with COUNT, we can test that GDB can read a non-local variable even
  34        though it's not directly in the upper stack frame.  */
  35     count += 1; /* STOP */
  36   }
  37
  38   iter_str (str, &increment);
  39   return count;
  40 }
  41
  42 int
  43 main ()
  44 {
  45   if (length_str ("foo") == 3)
  46     return 0;
  47   return 1;
  48 }