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/* Copyright 1994-2013 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef vxworks
# include <stdio.h>
/* VxWorks does not supply atoi. */
static int
atoi (z)
char *z;
{
int i = 0;
while (*z >= '0' && *z <= '9')
i = i * 10 + (*z++ - '0');
return i;
}
/* I don't know of any way to pass an array to VxWorks. This function
can be called directly from gdb. */
vxmain (arg)
char *arg;
{
char *argv[2];
argv[0] = "";
argv[1] = arg;
main (2, argv, (char **) 0);
}
#else /* ! vxworks */
# include <stdio.h>
# include <stdlib.h>
#endif /* ! vxworks */
/*
* The following functions do nothing useful. They are included simply
* as places to try setting breakpoints at. They are explicitly
* "one-line functions" to verify that this case works (some versions
* of gcc have or have had problems with this).
*/
#ifdef PROTOTYPES
int marker1 (void) { return (0); }
int marker2 (int a) { return (1); } /* set breakpoint 8 here */
void marker3 (char *a, char *b) {}
void marker4 (long d) {} /* set breakpoint 14 here */
#else
int marker1 () { return (0); }
int marker2 (a) int a; { return (1); } /* set breakpoint 9 here */
void marker3 (a, b) char *a, *b; {}
void marker4 (d) long d; {} /* set breakpoint 13 here */
#endif
/*
* This simple classical example of recursion is useful for
* testing stack backtraces and such.
*/
#ifdef PROTOTYPES
int factorial(int);
int
main (int argc, char **argv, char **envp)
#else
int
main (argc, argv, envp)
int argc;
char *argv[], **envp;
#endif
{
if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */
fprintf (stderr, "usage: factorial <number>\n");
return 1;
}
printf ("%d\n", factorial (atoi ("6"))); /* set breakpoint 1 here */
/* set breakpoint 12 here */
marker1 (); /* set breakpoint 11 here */
marker2 (43);
marker3 ("stack", "trace");
marker4 (177601976L);
argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */
return argc; /* set breakpoint 10 here */
}
#ifdef PROTOTYPES
int factorial (int value)
#else
int factorial (value)
int value;
#endif
{
if (value > 1) { /* set breakpoint 7 here */
value *= factorial (value - 1);
}
return (value);
}
#ifdef PROTOTYPES
int multi_line_if_conditional (int a, int b, int c)
#else
int multi_line_if_conditional (a, b, c)
int a, b, c;
#endif
{
if (a /* set breakpoint 3 here */
&& b
&& c)
return 0;
else
return 1;
}
#ifdef PROTOTYPES
int multi_line_while_conditional (int a, int b, int c)
#else
int multi_line_while_conditional (a, b, c)
int a, b, c;
#endif
{
while (a /* set breakpoint 4 here */
&& b
&& c)
{
a--, b--, c--;
}
return 0;
}
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