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61baf725 | 1 | /* Copyright 1994-2017 Free Software Foundation, Inc. |
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2 | |
3 | This program is free software; you can redistribute it and/or modify | |
4 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 5 | the Free Software Foundation; either version 3 of the License, or |
1f8a6abb | 6 | (at your option) any later version. |
a9762ec7 | 7 | |
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8 | This program is distributed in the hope that it will be useful, |
9 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | GNU General Public License for more details. | |
a9762ec7 | 12 | |
1f8a6abb | 13 | You should have received a copy of the GNU General Public License |
c7b778ff | 14 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
1f8a6abb | 15 | |
428b16bd PA |
16 | #include <stdio.h> |
17 | #include <stdlib.h> | |
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18 | |
19 | /* | |
20 | * The following functions do nothing useful. They are included simply | |
21 | * as places to try setting breakpoints at. They are explicitly | |
22 | * "one-line functions" to verify that this case works (some versions | |
23 | * of gcc have or have had problems with this). | |
24 | */ | |
25 | ||
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26 | int marker1 (void) { return (0); } |
27 | int marker2 (int a) { return (1); } /* set breakpoint 8 here */ | |
28 | void marker3 (char *a, char *b) {} | |
29 | void marker4 (long d) {} /* set breakpoint 14 here */ | |
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30 | |
31 | /* | |
32 | * This simple classical example of recursion is useful for | |
33 | * testing stack backtraces and such. | |
34 | */ | |
35 | ||
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36 | int factorial(int); |
37 | ||
38 | int | |
39 | main (int argc, char **argv, char **envp) | |
1f8a6abb | 40 | { |
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41 | if (argc == 12345) { /* an unlikely value < 2^16, in case uninited */ /* set breakpoint 6 here */ |
42 | fprintf (stderr, "usage: factorial <number>\n"); | |
43 | return 1; | |
44 | } | |
45 | printf ("%d\n", factorial (atoi ("6"))); /* set breakpoint 1 here */ | |
46 | /* set breakpoint 12 here */ | |
47 | marker1 (); /* set breakpoint 11 here */ | |
48 | marker2 (43); | |
49 | marker3 ("stack", "trace"); | |
50 | marker4 (177601976L); | |
51 | argc = (argc == 12345); /* This is silly, but we can step off of it */ /* set breakpoint 2 here */ | |
52 | return argc; /* set breakpoint 10 here */ | |
53 | } | |
54 | ||
1f8a6abb | 55 | int factorial (int value) |
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56 | { |
57 | if (value > 1) { /* set breakpoint 7 here */ | |
58 | value *= factorial (value - 1); | |
59 | } | |
60 | return (value); | |
61 | } | |
62 | ||
1f8a6abb | 63 | int multi_line_if_conditional (int a, int b, int c) |
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64 | { |
65 | if (a /* set breakpoint 3 here */ | |
66 | && b | |
67 | && c) | |
68 | return 0; | |
69 | else | |
70 | return 1; | |
71 | } | |
72 | ||
1f8a6abb | 73 | int multi_line_while_conditional (int a, int b, int c) |
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74 | { |
75 | while (a /* set breakpoint 4 here */ | |
76 | && b | |
77 | && c) | |
78 | { | |
79 | a--, b--, c--; | |
80 | } | |
81 | return 0; | |
82 | } |