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1 office 1 /**
2 * @file predicate_test.c
3 * @author Ambroz Bizjak <ambrop7@gmail.com>
4 *
5 * @section LICENSE
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29  
30 #include <stdio.h>
31 #include <string.h>
32  
33 #include <predicate/BPredicate.h>
34 #include <base/BLog.h>
35  
36 static int func_hello (void *user, void **args)
37 {
38 return 1;
39 }
40  
41 static int func_neg (void *user, void **args)
42 {
43 int arg = *((int *)args[0]);
44  
45 return !arg;
46 }
47  
48 static int func_conj (void *user, void **args)
49 {
50 int arg1 = *((int *)args[0]);
51 int arg2 = *((int *)args[1]);
52  
53 return (arg1 && arg2);
54 }
55  
56 static int func_strcmp (void *user, void **args)
57 {
58 char *arg1 = (char *)args[0];
59 char *arg2 = (char *)args[1];
60  
61 return (!strcmp(arg1, arg2));
62 }
63  
64 static int func_error (void *user, void **args)
65 {
66 return -1;
67 }
68  
69 int main (int argc, char **argv)
70 {
71 if (argc != 2) {
72 fprintf(stderr, "Usage: %s <predicate>\n", argv[0]);
73 return 1;
74 }
75  
76 // init logger
77 BLog_InitStdout();
78  
79 // init predicate
80 BPredicate pr;
81 if (!BPredicate_Init(&pr, argv[1])) {
82 fprintf(stderr, "BPredicate_Init failed\n");
83 return 1;
84 }
85  
86 // init functions
87 BPredicateFunction f_hello;
88 BPredicateFunction_Init(&f_hello, &pr, "hello", NULL, 0, func_hello, NULL);
89 int arr1[] = {PREDICATE_TYPE_BOOL};
90 BPredicateFunction f_neg;
91 BPredicateFunction_Init(&f_neg, &pr, "neg", arr1, 1, func_neg, NULL);
92 int arr2[] = {PREDICATE_TYPE_BOOL, PREDICATE_TYPE_BOOL};
93 BPredicateFunction f_conj;
94 BPredicateFunction_Init(&f_conj, &pr, "conj", arr2, 2, func_conj, NULL);
95 int arr3[] = {PREDICATE_TYPE_STRING, PREDICATE_TYPE_STRING};
96 BPredicateFunction f_strcmp;
97 BPredicateFunction_Init(&f_strcmp, &pr, "strcmp", arr3, 2, func_strcmp, NULL);
98 BPredicateFunction f_error;
99 BPredicateFunction_Init(&f_error, &pr, "error", NULL, 0, func_error, NULL);
100  
101 // evaluate
102 int result = BPredicate_Eval(&pr);
103 printf("%d\n", result);
104  
105 // free functions
106 BPredicateFunction_Free(&f_hello);
107 BPredicateFunction_Free(&f_neg);
108 BPredicateFunction_Free(&f_conj);
109 BPredicateFunction_Free(&f_strcmp);
110 BPredicateFunction_Free(&f_error);
111  
112 // free predicate
113 BPredicate_Free(&pr);
114  
115 return 0;
116 }