1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2008-2020 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#include <stdio.h>
19#include <stdlib.h>
20
21extern int marker1 (void);
22extern int marker2 (int a);
23extern void marker3 (char *a, char *b);
24extern void marker4 (long d);
25
26/*
27 *	This simple classical example of recursion is useful for
28 *	testing stack backtraces and such.
29 */
30
31int factorial(int);
32
33int
34main (int argc, char **argv, char **envp)
35{
36  if (argc == 12345)
37    {
38      /* We're used by a test that requires malloc, so make sure it is
39	 in the executable.  */
40      void *p = malloc (1);
41      free (p);
42      return 1;
43    }
44
45    factorial (atoi ("6"));  /* set breakpoint 1 here */
46    /* set breakpoint 12 here */
47    marker1 ();  /* set breakpoint 11 here */
48    marker2 (43); /* set breakpoint 20 here */
49    marker3 ("stack", "trace"); /* set breakpoint 21 here */
50    marker4 (177601976L);
51
52    argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
53    return argc;  /* set breakpoint 10 here */
54} /* set breakpoint 10a here */
55
56int factorial (int value)
57{
58  if (value > 1) {  /* set breakpoint 7 here */
59	value *= factorial (value - 1);
60    }
61    return (value); /* set breakpoint 19 here */
62}
63
64int multi_line_if_conditional (int a, int b, int c)
65{
66  if (a    /* set breakpoint 3 here */
67      && b
68      && c)
69    return 0;
70  else
71    return 1;
72}
73
74int multi_line_while_conditional (int a, int b, int c)
75{
76  while (a /* set breakpoint 4 here */
77      && b
78      && c)
79    {
80      a--, b--, c--;
81    }
82  return 0;
83}
84