1 /*
2 * Copyright (c) 2010 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "baselocl.h"
37
38 static void
number_dealloc(void * ptr)39 number_dealloc(void *ptr)
40 {
41 }
42
43 static int
number_cmp(void * a,void * b)44 number_cmp(void *a, void *b)
45 {
46 int na, nb;
47
48 if (heim_base_is_tagged_object(a))
49 na = heim_base_tagged_object_value(a);
50 else
51 na = *(int *)a;
52
53 if (heim_base_is_tagged_object(b))
54 nb = heim_base_tagged_object_value(b);
55 else
56 nb = *(int *)b;
57
58 return na - nb;
59 }
60
61 static unsigned long
number_hash(void * ptr)62 number_hash(void *ptr)
63 {
64 if (heim_base_is_tagged_object(ptr))
65 return heim_base_tagged_object_value(ptr);
66 return (unsigned long)*(int *)ptr;
67 }
68
69 struct heim_type_data _heim_number_object = {
70 HEIM_TID_NUMBER,
71 "number-object",
72 NULL,
73 number_dealloc,
74 NULL,
75 number_cmp,
76 number_hash
77 };
78
79 /**
80 * Create a number object
81 *
82 * @param the number to contain in the object
83 *
84 * @return a number object
85 */
86
87 heim_number_t
heim_number_create(int number)88 heim_number_create(int number)
89 {
90 heim_number_t n;
91
92 if (number < 0xffffff && number >= 0)
93 return heim_base_make_tagged_object(number, HEIM_TID_NUMBER);
94
95 n = _heim_alloc_object(&_heim_number_object, sizeof(int));
96 if (n)
97 *((int *)n) = number;
98 return n;
99 }
100
101 /**
102 * Return the type ID of number objects
103 *
104 * @return type id of number objects
105 */
106
107 heim_tid_t
heim_number_get_type_id(void)108 heim_number_get_type_id(void)
109 {
110 return HEIM_TID_NUMBER;
111 }
112
113 /**
114 * Get the int value of the content
115 *
116 * @param number the number object to get the value from
117 *
118 * @return an int
119 */
120
121 int
heim_number_get_int(heim_number_t number)122 heim_number_get_int(heim_number_t number)
123 {
124 if (heim_base_is_tagged_object(number))
125 return heim_base_tagged_object_value(number);
126 return *(int *)number;
127 }
128