/* Copyright 1994-2015 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/>. */ #include <stdio.h> #include <stdlib.h> /* * 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). */ 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 */ /* * This simple classical example of recursion is useful for * testing stack backtraces and such. */ int factorial(int); int main (int argc, char **argv, char **envp) { 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 */ } int factorial (int value) { if (value > 1) { /* set breakpoint 7 here */ value *= factorial (value - 1); } return (value); } int multi_line_if_conditional (int a, int b, int c) { if (a /* set breakpoint 3 here */ && b && c) return 0; else return 1; } int multi_line_while_conditional (int a, int b, int c) { while (a /* set breakpoint 4 here */ && b && c) { a--, b--, c--; } return 0; }