1 /* $NetBSD: number.c,v 1.1.1.1 2011/04/13 18:14:32 elric Exp $ */
2
3 /*
4 * Copyright (c) 2010 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * 3. Neither the name of the Institute nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include "baselocl.h"
39
40 static void
number_dealloc(void * ptr)41 number_dealloc(void *ptr)
42 {
43 }
44
45 static int
number_cmp(void * a,void * b)46 number_cmp(void *a, void *b)
47 {
48 int na, nb;
49
50 if (heim_base_is_tagged_object(a))
51 na = heim_base_tagged_object_value(a);
52 else
53 na = *(int *)a;
54
55 if (heim_base_is_tagged_object(b))
56 nb = heim_base_tagged_object_value(b);
57 else
58 nb = *(int *)b;
59
60 return na - nb;
61 }
62
63 static unsigned long
number_hash(void * ptr)64 number_hash(void *ptr)
65 {
66 if (heim_base_is_tagged_object(ptr))
67 return heim_base_tagged_object_value(ptr);
68 return (unsigned long)*(int *)ptr;
69 }
70
71 struct heim_type_data _heim_number_object = {
72 HEIM_TID_NUMBER,
73 "number-object",
74 NULL,
75 number_dealloc,
76 NULL,
77 number_cmp,
78 number_hash
79 };
80
81 /**
82 * Create a number object
83 *
84 * @param the number to contain in the object
85 *
86 * @return a number object
87 */
88
89 heim_number_t
heim_number_create(int number)90 heim_number_create(int number)
91 {
92 heim_number_t n;
93
94 if (number < 0xffffff && number >= 0)
95 return heim_base_make_tagged_object(number, HEIM_TID_NUMBER);
96
97 n = _heim_alloc_object(&_heim_number_object, sizeof(int));
98 if (n)
99 *((int *)n) = number;
100 return n;
101 }
102
103 /**
104 * Return the type ID of number objects
105 *
106 * @return type id of number objects
107 */
108
109 heim_tid_t
heim_number_get_type_id(void)110 heim_number_get_type_id(void)
111 {
112 return HEIM_TID_NUMBER;
113 }
114
115 /**
116 * Get the int value of the content
117 *
118 * @param number the number object to get the value from
119 *
120 * @return an int
121 */
122
123 int
heim_number_get_int(heim_number_t number)124 heim_number_get_int(heim_number_t number)
125 {
126 if (heim_base_is_tagged_object(number))
127 return heim_base_tagged_object_value(number);
128 return *(int *)number;
129 }
130