/usr/include/gf2x/gf2x-impl.h is in libgf2x-dev 1.1-1.
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 | /* This file is part of the gf2x library.
Copyright 2007, 2008, 2009
Richard Brent, Pierrick Gaudry, Emmanuel Thome', Paul Zimmermann
This program 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.
This program 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 this program; see the file COPYING. If not, write to the Free
Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02111-1307, USA.
*/
#ifndef GF2X_IMPL_H_
#define GF2X_IMPL_H_
#include "gf2x.h"
#include "gf2x/gf2x-config.h"
#include "gf2x/gf2x-thresholds.h"
/**********************************************************************/
/* Some support macros */
#include <assert.h>
#ifndef ASSERT
#define ASSERT(x) assert(x)
#endif
#ifndef GF2X_WORDSIZE
#define GF2X_WORDSIZE (8 * SIZEOF_UNSIGNED_LONG)
#endif
#ifndef MAYBE_UNUSED
#if defined(__GNUC__)
#define MAYBE_UNUSED __attribute__ ((unused))
#else
#define MAYBE_UNUSED
#endif
#endif
/* These flags are for internal use */
#define GF2X_SELECT_KARA 0 /* do not change ! */
#define GF2X_SELECT_TC3 1
#define GF2X_SELECT_TC3W 2
#define GF2X_SELECT_TC4 3
#define GF2X_SELECT_UNB_DFLT 0
#define GF2X_SELECT_UNB_TC3U 1 /* do not change ! */
#ifdef __cplusplus
extern "C" {
#endif
extern long gf2x_toomspace(long n);
extern long gf2x_toomuspace(long n);
extern void gf2x_mul_basecase(unsigned long * c, const unsigned long * a,
long na, const unsigned long * b, long nb);
extern void gf2x_mul_toom(unsigned long *c, const unsigned long *a,
const unsigned long *b, long n, unsigned long *stk);
extern void gf2x_mul_kara(unsigned long *c, const unsigned long *a, const unsigned long *b,
long n, unsigned long *stk);
extern void gf2x_mul_tc3(unsigned long *c, const unsigned long *a, const unsigned long *b,
long n, unsigned long *stk);
extern void gf2x_mul_tc3w(unsigned long *c, const unsigned long *a, const unsigned long *b,
long n, unsigned long *stk);
extern void gf2x_mul_tc4(unsigned long *c, const unsigned long *a, const unsigned long *b,
long n, unsigned long *stk);
extern short gf2x_best_toom(unsigned int);
extern long gf2x_toomspace(long);
extern void gf2x_mul_tc3u(unsigned long * c, const unsigned long * a, long sa,
const unsigned long * b, unsigned long * stk);
extern short gf2x_best_utoom(unsigned int);
extern long gf2x_toomuspace(long);
extern void gf2x_mul_fft(unsigned long *c, const unsigned long *a, size_t an,
const unsigned long *b, size_t bn, long K);
/* tunetoom.c need to poke into toom.c's tables ; that's very ugly. So
* please don't use for anything else.
* */
extern short best_tab[GF2X_TOOM_TUNING_LIMIT];
extern short best_utab[GF2X_TOOM_TUNING_LIMIT];
#ifdef __cplusplus
}
#endif
#endif /* GF2X_IMPL_H_ */
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