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cpython/Modules/_decimal/libmpdec/numbertheory.h at pythoncapi · pythoncapi/cpython · GitHub
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pythoncapi
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cpython
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_decimal
/
libmpdec
/
numbertheory.h
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pythoncapi
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_decimal
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libmpdec
/
numbertheory.h
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/*
* Copyright (c) 2008-2016 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
NUMBER_THEORY_H
#define
NUMBER_THEORY_H
#include
"constants.h"
#include
"mpdecimal.h"
/* Internal header file: all symbols have local scope in the DSO */
MPD_PRAGMA
(
MPD_HIDE_SYMBOLS_START
)
/* transform parameters */
struct
fnt_params
{
int
modnum
;
mpd_uint_t
modulus
;
mpd_uint_t
kernel
;
mpd_uint_t
wtable
[];
};
mpd_uint_t
_mpd_getkernel
(
mpd_uint_t
n
,
int
sign
,
int
modnum
);
struct
fnt_params
*
_mpd_init_fnt_params
(
mpd_size_t
n
,
int
sign
,
int
modnum
);
void
_mpd_init_w3table
(
mpd_uint_t
w3table
[
3
],
int
sign
,
int
modnum
);
#ifdef
PPRO
static
inline
void
ppro_setmodulus
(
int
modnum
,
mpd_uint_t
*
umod
,
double
*
dmod
,
uint32_t
dinvmod
[
3
])
{
*
dmod
=
*
umod
=
mpd_moduli
[
modnum
];
dinvmod
[
0
]
=
mpd_invmoduli
[
modnum
][
0
];
dinvmod
[
1
]
=
mpd_invmoduli
[
modnum
][
1
];
dinvmod
[
2
]
=
mpd_invmoduli
[
modnum
][
2
];
}
#else
static
inline
void
std_setmodulus
(
int
modnum
,
mpd_uint_t
*
umod
)
{
*
umod
=
mpd_moduli
[
modnum
];
}
#endif
MPD_PRAGMA
(
MPD_HIDE_SYMBOLS_END
)
/* restore previous scope rules */
#endif
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