1 /* $NetBSD: number.c,v 1.2 2017/01/28 21:31:45 christos 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 NULL
80 };
81
82 /**
83 * Create a number object
84 *
85 * @param the number to contain in the object
86 *
87 * @return a number object
88 */
89
90 heim_number_t
heim_number_create(int number)91 heim_number_create(int number)
92 {
93 heim_number_t n;
94
95 if (number < 0xffffff && number >= 0)
96 return heim_base_make_tagged_object(number, HEIM_TID_NUMBER);
97
98 n = _heim_alloc_object(&_heim_number_object, sizeof(int));
99 if (n)
100 *((int *)n) = number;
101 return n;
102 }
103
104 /**
105 * Return the type ID of number objects
106 *
107 * @return type id of number objects
108 */
109
110 heim_tid_t
heim_number_get_type_id(void)111 heim_number_get_type_id(void)
112 {
113 return HEIM_TID_NUMBER;
114 }
115
116 /**
117 * Get the int value of the content
118 *
119 * @param number the number object to get the value from
120 *
121 * @return an int
122 */
123
124 int
heim_number_get_int(heim_number_t number)125 heim_number_get_int(heim_number_t number)
126 {
127 if (heim_base_is_tagged_object(number))
128 return heim_base_tagged_object_value(number);
129 return *(int *)number;
130 }
131