| /* |
| * 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_ */ |