1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (c) 2020 Stefan Krah. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef CPYTHON_DECIMAL_H_
#define CPYTHON_DECIMAL_H_
#include <Python.h>
#ifdef __cplusplus
extern "C" {
#endif
/****************************************************************************/
/* Libmpdec API */
/****************************************************************************/
#ifndef LIBMPDEC_MPDECIMAL_H_
struct mpd_t; /* ABI-stable in the libmpdec-2.x series */
/* status cases for getting a triple */
enum mpd_triple_class {
MPD_TRIPLE_NORMAL,
MPD_TRIPLE_INF,
MPD_TRIPLE_QNAN,
MPD_TRIPLE_SNAN,
MPD_TRIPLE_ERROR,
};
typedef struct {
enum mpd_triple_class tag;
uint8_t sign;
uint64_t hi;
uint64_t lo;
int64_t exp;
} mpd_uint128_triple_t;
#endif
/****************************************************************************/
/* Capsule API */
/****************************************************************************/
/* Simple API */
#define PyDec_TypeCheck_INDEX 0
#define PyDec_TypeCheck_RETURN int
#define PyDec_TypeCheck_ARGS (const PyObject *)
#define PyDec_IsSpecial_INDEX 1
#define PyDec_IsSpecial_RETURN int
#define PyDec_IsSpecial_ARGS (const PyObject *)
#define PyDec_IsNaN_INDEX 2
#define PyDec_IsNaN_RETURN int
#define PyDec_IsNaN_ARGS (const PyObject *)
#define PyDec_IsInfinite_INDEX 3
#define PyDec_IsInfinite_RETURN int
#define PyDec_IsInfinite_ARGS (const PyObject *)
#define PyDec_GetDigits_INDEX 4
#define PyDec_GetDigits_RETURN int64_t
#define PyDec_GetDigits_ARGS (const PyObject *)
#define PyDec_AsUint128Triple_INDEX 5
#define PyDec_AsUint128Triple_RETURN mpd_uint128_triple_t
#define PyDec_AsUint128Triple_ARGS (const PyObject *)
#define PyDec_FromUint128Triple_INDEX 6
#define PyDec_FromUint128Triple_RETURN PyObject *
#define PyDec_FromUint128Triple_ARGS (const mpd_uint128_triple_t *triple)
/* Advanced API */
#define PyDec_Alloc_INDEX 7
#define PyDec_Alloc_RETURN PyObject *
#define PyDec_Alloc_ARGS (void)
#define PyDec_Get_INDEX 8
#define PyDec_Get_RETURN mpd_t *
#define PyDec_Get_ARGS (PyObject *)
#define PyDec_GetConst_INDEX 9
#define PyDec_GetConst_RETURN const mpd_t *
#define PyDec_GetConst_ARGS (const PyObject *)
#define CPYTHON_DECIMAL_MAX_API 10
#ifdef CPYTHON_DECIMAL_MODULE
/* Simple API */
static PyDec_TypeCheck_RETURN PyDec_TypeCheck PyDec_TypeCheck_ARGS;
static PyDec_IsSpecial_RETURN PyDec_IsSpecial PyDec_IsSpecial_ARGS;
static PyDec_IsNaN_RETURN PyDec_IsNaN PyDec_IsNaN_ARGS;
static PyDec_IsInfinite_RETURN PyDec_IsInfinite PyDec_IsInfinite_ARGS;
static PyDec_GetDigits_RETURN PyDec_GetDigits PyDec_GetDigits_ARGS;
static PyDec_AsUint128Triple_RETURN PyDec_AsUint128Triple PyDec_AsUint128Triple_ARGS;
static PyDec_FromUint128Triple_RETURN PyDec_FromUint128Triple PyDec_FromUint128Triple_ARGS;
/* Advanced API */
static PyDec_Alloc_RETURN PyDec_Alloc PyDec_Alloc_ARGS;
static PyDec_Get_RETURN PyDec_Get PyDec_Get_ARGS;
static PyDec_GetConst_RETURN PyDec_GetConst PyDec_GetConst_ARGS;
#else
static void **_decimal_api;
/* Simple API */
#define PyDec_TypeCheck \
(*(PyDec_TypeCheck_RETURN (*)PyDec_TypeCheck_ARGS) _decimal_api[PyDec_TypeCheck_INDEX])
#define PyDec_IsSpecial \
(*(PyDec_IsSpecial_RETURN (*)PyDec_IsSpecial_ARGS) _decimal_api[PyDec_IsSpecial_INDEX])
#define PyDec_IsNaN \
(*(PyDec_IsNaN_RETURN (*)PyDec_IsNaN_ARGS) _decimal_api[PyDec_IsNaN_INDEX])
#define PyDec_IsInfinite \
(*(PyDec_IsInfinite_RETURN (*)PyDec_IsInfinite_ARGS) _decimal_api[PyDec_IsInfinite_INDEX])
#define PyDec_GetDigits \
(*(PyDec_GetDigits_RETURN (*)PyDec_GetDigits_ARGS) _decimal_api[PyDec_GetDigits_INDEX])
#define PyDec_AsUint128Triple \
(*(PyDec_AsUint128Triple_RETURN (*)PyDec_AsUint128Triple_ARGS) _decimal_api[PyDec_AsUint128Triple_INDEX])
#define PyDec_FromUint128Triple \
(*(PyDec_FromUint128Triple_RETURN (*)PyDec_FromUint128Triple_ARGS) _decimal_api[PyDec_FromUint128Triple_INDEX])
/* Advanced API */
#define PyDec_Alloc \
(*(PyDec_Alloc_RETURN (*)PyDec_Alloc_ARGS) _decimal_api[PyDec_Alloc_INDEX])
#define PyDec_Get \
(*(PyDec_Get_RETURN (*)PyDec_Get_ARGS) _decimal_api[PyDec_Get_INDEX])
#define PyDec_GetConst \
(*(PyDec_GetConst_RETURN (*)PyDec_GetConst_ARGS) _decimal_api[PyDec_GetConst_INDEX])
static int
import_decimal(void)
{
_decimal_api = (void **)PyCapsule_Import("_decimal._API", 0);
if (_decimal_api == NULL) {
return -1;
}
return 0;
}
#endif
#ifdef __cplusplus
}
#endif
#endif /* CPYTHON_DECIMAL_H_ */
|
