implied: add a timeout in smatch_implied.c
[smatch.git] / check_array_condition.c
blob3d69f6d0ca928eed02cce7b75796d75ec3aab0dc
1 /*
2 * Copyright (C) 2013 Oracle.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
19 * struct foo { char buf[10]; };
21 * struct foo *p = something();
22 * if (p->buf) { ...
26 #include "smatch.h"
28 static int my_id;
30 static void match_condition(struct expression *expr)
32 struct symbol *type;
33 char *str;
35 if (expr->type != EXPR_DEREF)
36 return;
37 type = get_type(expr);
38 if (!type || type->type != SYM_ARRAY)
39 return;
40 if (get_macro_name(expr->pos))
41 return;
43 str = expr_to_str(expr);
44 sm_msg("warn: this array is probably non-NULL. '%s'", str);
45 free_string(str);
48 void check_array_condition(int id)
50 my_id = id;
51 add_hook(&match_condition, CONDITION_HOOK);