1 /*
2 * Copyright (c) 2008-2016 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 NUMBER_THEORY_H
30 #define NUMBER_THEORY_H
31
32
33 #include "constants.h"
34 #include "mpdecimal.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
ppro_setmodulus(int modnum,mpd_uint_t * umod,double * dmod,uint32_t dinvmod[3])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
std_setmodulus(int modnum,mpd_uint_t * umod)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
77
78
79