QOF: qofmath128.h Source File

QOF 0.7.5

qofmath128.h
1 /********************************************************************
2 * qofmath128.h -- an 128-bit integer library *
3 * Copyright (C) 2004 Linas Vepstas <linas@linas.org> *
4 * *
5 * This program is free software; you can redistribute it and/or *
6 * modify it under the terms of the GNU General Public License as *
7 * published by the Free Software Foundation; either version 2 of *
8 * the License, or (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License*
16 * along with this program; if not, contact: *
17 * *
18 * Free Software Foundation Voice: +1-617-542-5942 *
19 * 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
20 * Boston, MA 02110-1301, USA gnu@gnu.org *
21 * *
22 *******************************************************************/
23
24 #ifndef QOF_MATH_128_H
25 #define QOF_MATH_128_H
26
27 #include <glib.h>
28
38 typedef struct
39 {
40 guint64 hi;
41 guint64 lo;
42 gshort isneg;
43 gshort isbig;
44 } QofInt128;
45
47 gboolean equal128 (QofInt128 a, QofInt128 b);
48
50 gint cmp128 (QofInt128 a, QofInt128 b);
51
53 QofInt128 shift128 (QofInt128 x);
54
56 QofInt128 shiftleft128 (QofInt128 x);
57
59 QofInt128 inc128 (QofInt128 a);
60
62 QofInt128 add128 (QofInt128 a, QofInt128 b);
63
67 QofInt128 mult128 (gint64 a, gint64 b);
68
72 QofInt128 div128 (QofInt128 n, gint64 d);
73
79 gint64 rem128 (QofInt128 n, gint64 d);
80
82 guint64 gcf64 (guint64 num, guint64 denom);
83
85 QofInt128 lcm128 (guint64 a, guint64 b);
86
89 #endif
gcf64
guint64 gcf64(guint64 num, guint64 denom)
Definition: qofmath128.c:278
QofInt128::isneg
gshort isneg
Definition: qofmath128.h:42
inc128
QofInt128 inc128(QofInt128 a)
Definition: qofmath128.c:153
cmp128
gint cmp128(QofInt128 a, QofInt128 b)
Definition: qofmath128.c:246
rem128
gint64 rem128(QofInt128 n, gint64 d)
Definition: qofmath128.c:220
shift128
QofInt128 shift128(QofInt128 x)
Definition: qofmath128.c:110
div128
QofInt128 div128(QofInt128 n, gint64 d)
Definition: qofmath128.c:180
add128
QofInt128 add128(QofInt128 a, QofInt128 b)
Definition: qofmath128.c:308
equal128
gboolean equal128(QofInt128 a, QofInt128 b)
Definition: qofmath128.c:233
shiftleft128
QofInt128 shiftleft128(QofInt128 x)
Definition: qofmath128.c:131
QofInt128::isbig
gshort isbig
Definition: qofmath128.h:43
QofInt128
Definition: qofmath128.h:38
mult128
QofInt128 mult128(gint64 a, gint64 b)
Definition: qofmath128.c:41
lcm128
QofInt128 lcm128(guint64 a, guint64 b)
Definition: qofmath128.c:299