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