1 | /* |
2 | * Copyright (c) 2008-2020 Stefan Krah. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND |
16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
25 | * SUCH DAMAGE. |
26 | */ |
27 | |
28 | |
29 | #ifndef LIBMPDEC_NUMBERTHEORY_H_ |
30 | #define LIBMPDEC_NUMBERTHEORY_H_ |
31 | |
32 | |
33 | #include "mpdecimal.h" |
34 | #include "constants.h" |
35 | |
36 | |
37 | /* Internal header file: all symbols have local scope in the DSO */ |
38 | MPD_PRAGMA(MPD_HIDE_SYMBOLS_START) |
39 | |
40 | |
41 | /* transform parameters */ |
42 | struct fnt_params { |
43 | int modnum; |
44 | mpd_uint_t modulus; |
45 | mpd_uint_t kernel; |
46 | mpd_uint_t wtable[]; |
47 | }; |
48 | |
49 | |
50 | mpd_uint_t _mpd_getkernel(mpd_uint_t n, int sign, int modnum); |
51 | struct fnt_params *_mpd_init_fnt_params(mpd_size_t n, int sign, int modnum); |
52 | void _mpd_init_w3table(mpd_uint_t w3table[3], int sign, int modnum); |
53 | |
54 | |
55 | #ifdef PPRO |
56 | static inline void |
57 | ppro_setmodulus(int modnum, mpd_uint_t *umod, double *dmod, uint32_t dinvmod[3]) |
58 | { |
59 | *dmod = *umod = mpd_moduli[modnum]; |
60 | dinvmod[0] = mpd_invmoduli[modnum][0]; |
61 | dinvmod[1] = mpd_invmoduli[modnum][1]; |
62 | dinvmod[2] = mpd_invmoduli[modnum][2]; |
63 | } |
64 | #else |
65 | static inline void |
66 | std_setmodulus(int modnum, mpd_uint_t *umod) |
67 | { |
68 | *umod = mpd_moduli[modnum]; |
69 | } |
70 | #endif |
71 | |
72 | |
73 | MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */ |
74 | |
75 | |
76 | #endif /* LIBMPDEC_NUMBERTHEORY_H_ */ |
77 | |