/usr/include/flint/mpn_extras.h is in libflint-dev 2.4.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 | /*============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===============================================================================*/
/******************************************************************************
Copyright (C) 2010 Fredrik Johansson
******************************************************************************/
#ifndef MPN_EXTRAS_H
#define MPN_EXTRAS_H
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_poly.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MPN_NORM(a, an) \
do { \
while ((an) != 0 && (a)[(an) - 1] == 0) \
(an)--; \
} while (0)
#define MPN_SWAP(a, an, b, bn) \
do { \
mp_ptr __t; \
mp_size_t __tn; \
__t = (a); \
(a) = (b); \
(b) = __t; \
__tn = (an); \
(an) = (bn); \
(bn) = __tn; \
} while (0)
#define BITS_TO_LIMBS(b) (((b) + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS)
/* Not defined in gmp.h
mp_limb_t __gmpn_modexact_1_odd(mp_srcptr src, mp_size_t size,
mp_limb_t divisor);
#define mpn_modexact_1_odd __gmpn_modexact_1_odd
*/
#ifdef mpn_modexact_1_odd
#define flint_mpn_divisible_1_p(x, xsize, d) (mpn_modexact_1_odd(x, xsize, d) == 0)
#else
static __inline__ int
flint_mpn_divisible_1_p(mp_srcptr x, mp_size_t xsize, mp_limb_t d)
{
__mpz_struct s;
s._mp_size = xsize;
s._mp_d = (mp_ptr) x;
return flint_mpz_divisible_ui_p(&s, d);
}
#endif
static __inline__
int flint_mpn_zero_p(mp_srcptr x, mp_size_t xsize)
{
slong i;
for (i = 0; i < xsize; i++)
{
if (x[i])
return 0;
}
return 1;
}
static __inline__
mp_size_t flint_mpn_divexact_1(mp_ptr x, mp_size_t xsize, mp_limb_t d)
{
mpn_divrem_1(x, 0, x, xsize, d);
if (x[xsize - 1] == UWORD(0))
xsize -= 1;
return xsize;
}
void flint_mpn_debug(mp_srcptr x, mp_size_t xsize);
mp_size_t flint_mpn_remove_2exp(mp_ptr x, mp_size_t xsize, mp_bitcnt_t *bits);
mp_size_t flint_mpn_remove_power_ascending(mp_ptr x, mp_size_t xsize,
mp_ptr p, mp_size_t psize, ulong *exp);
int flint_mpn_factor_trial(mp_srcptr x, mp_size_t xsize, slong start, slong stop);
int flint_mpn_divides(mp_ptr q, mp_srcptr array1,
mp_size_t limbs1, mp_srcptr arrayg, mp_size_t limbsg, mp_ptr temp);
mp_size_t flint_mpn_gcd_full(mp_ptr arrayg,
mp_ptr array1, mp_size_t limbs1, mp_ptr array2, mp_size_t limbs2);
/*
Macros for common operations with carry management.
Also automatically order the large operand first in mpn_mul
and mpn_add.
*/
#define MPN_SET(xx, xs, yy, ys) \
do { \
xs = ys; \
flint_mpn_copyi(xx, yy, ys); \
} while (0)
#define CARRY(cy,xx,xs) if (cy) { xx[xs++] = cy; }
#define MPN_MUL_1(xx, xs, yy, ys, dd) \
do { \
mp_limb_t __cy; \
__cy = mpn_mul_1(xx, yy, ys, dd); \
xs = ys; \
CARRY(__cy, xx, xs); \
} while (0)
#define MPN_MUL(xx, xs, yy, ys, zz, zs) \
do { \
mp_limb_t __top; \
xs = ys + zs; \
if (ys >= zs) \
__top = mpn_mul(xx, yy, ys, zz, zs); \
else \
__top = mpn_mul(xx, zz, zs, yy, ys); \
if (!__top) \
xs--; \
} while (0)
#define MPN_ADD(xx, xs, yy, ys, zz, zs) \
do { \
mp_limb_t __cy; \
if (ys >= zs) \
{ \
xs = ys; \
__cy = mpn_add(xx, yy, ys, zz, zs); \
} \
else \
{ \
xs = zs; \
__cy = mpn_add(xx, zz, zs, yy, ys); \
} \
CARRY(__cy, xx, xs); \
} while (0)
/*
Note: still assumes xs >= ys
*/
#define MPN_ADDMUL_1(xx, xs, yy, ys, dd) \
do { \
mp_limb_t __cy; \
__cy = mpn_addmul_1(xx, yy, ys, dd); \
if (__cy) \
{ \
if (xs == ys) \
xx[xs++] = __cy; \
else \
{ \
__cy = mpn_add_1(xx+ys, xx+ys, xs-ys, __cy); \
CARRY(__cy, xx, xs); \
} \
} \
} while (0)
void
flint_mpn_harmonic_odd_balanced(mp_ptr t, mp_size_t * tsize,
mp_ptr v, mp_size_t * vsize,
slong a, slong b, slong n, int d);
mp_limb_t flint_mpn_preinv1(mp_limb_t d, mp_limb_t d2);
mp_limb_t flint_mpn_divrem_preinv1(mp_ptr q, mp_ptr a,
mp_size_t m, mp_srcptr b, mp_size_t n, mp_limb_t dinv);
#define flint_mpn_divrem21_preinv(q, a_hi, a_lo, dinv) \
do { \
mp_limb_t __q2, __q3, __q4; \
umul_ppmm((q), __q2, (a_hi), (dinv)); \
umul_ppmm(__q3, __q4, (a_lo), (dinv)); \
add_ssaaaa((q), __q2, (q), __q2, 0, __q3); \
add_ssaaaa((q), __q2, (q), __q2, (a_hi), (a_lo)); \
} while (0)
void flint_mpn_mulmod_preinv1(mp_ptr r,
mp_srcptr a, mp_srcptr b, mp_size_t n,
mp_srcptr d, mp_limb_t dinv, ulong norm);
void flint_mpn_preinvn(mp_ptr dinv, mp_srcptr d, mp_size_t n);
void flint_mpn_mod_preinvn(mp_ptr r, mp_srcptr a, mp_size_t m,
mp_srcptr d, mp_size_t n, mp_srcptr dinv);
mp_limb_t flint_mpn_divrem_preinvn(mp_ptr q, mp_ptr r, mp_srcptr a, mp_size_t m,
mp_srcptr d, mp_size_t n, mp_srcptr dinv);
void flint_mpn_mulmod_preinvn(mp_ptr r,
mp_srcptr a, mp_srcptr b, mp_size_t n,
mp_srcptr d, mp_srcptr dinv, ulong norm);
int flint_mpn_mulmod_2expp1_basecase(mp_ptr xp, mp_srcptr yp, mp_srcptr zp,
int c, mp_bitcnt_t b, mp_ptr tp);
static __inline__
void flint_mpn_rrandom(mp_limb_t *rp, gmp_randstate_t state, mp_size_t n)
{
__mpz_struct str;
str._mp_d = rp;
str._mp_alloc = n;
str._mp_size =n;
mpz_rrandomb(&str,state,FLINT_BITS*n);
}
static __inline__
void flint_mpn_urandomb(mp_limb_t *rp, gmp_randstate_t state, mp_bitcnt_t n)
{
__mpz_struct str;
str._mp_d = rp;
str._mp_alloc = (n + FLINT_BITS - 1)/FLINT_BITS;
str._mp_size = (n + FLINT_BITS - 1)/FLINT_BITS;
mpz_rrandomb(&str,state,n);
}
#ifdef __cplusplus
}
#endif
#endif
|