1 | /* GLIB - Library of useful routines for C programming |
2 | * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
3 | * |
4 | * SPDX-License-Identifier: LGPL-2.1-or-later |
5 | * |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2.1 of the License, or (at your option) any later version. |
10 | * |
11 | * This library is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | /* |
21 | * Modified by the GLib Team and others 1997-2000. See the AUTHORS |
22 | * file for a list of people on the GLib Team. See the ChangeLog |
23 | * files for a list of changes. These files are distributed with |
24 | * GLib at ftp://ftp.gtk.org/pub/gtk/. |
25 | */ |
26 | |
27 | #ifndef __G_RAND_H__ |
28 | #define __G_RAND_H__ |
29 | |
30 | #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) |
31 | #error "Only <glib.h> can be included directly." |
32 | #endif |
33 | |
34 | #include <glib/gtypes.h> |
35 | |
36 | G_BEGIN_DECLS |
37 | |
38 | typedef struct _GRand GRand; |
39 | |
40 | /* GRand - a good and fast random number generator: Mersenne Twister |
41 | * see http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html for more info. |
42 | * The range functions return a value in the interval [begin, end). |
43 | * int -> [0..2^32-1] |
44 | * int_range -> [begin..end-1] |
45 | * double -> [0..1) |
46 | * double_range -> [begin..end) |
47 | */ |
48 | |
49 | GLIB_AVAILABLE_IN_ALL |
50 | GRand* g_rand_new_with_seed (guint32 seed); |
51 | GLIB_AVAILABLE_IN_ALL |
52 | GRand* g_rand_new_with_seed_array (const guint32 *seed, |
53 | guint seed_length); |
54 | GLIB_AVAILABLE_IN_ALL |
55 | GRand* g_rand_new (void); |
56 | GLIB_AVAILABLE_IN_ALL |
57 | void g_rand_free (GRand *rand_); |
58 | GLIB_AVAILABLE_IN_ALL |
59 | GRand* g_rand_copy (GRand *rand_); |
60 | GLIB_AVAILABLE_IN_ALL |
61 | void g_rand_set_seed (GRand *rand_, |
62 | guint32 seed); |
63 | GLIB_AVAILABLE_IN_ALL |
64 | void g_rand_set_seed_array (GRand *rand_, |
65 | const guint32 *seed, |
66 | guint seed_length); |
67 | |
68 | #define g_rand_boolean(rand_) ((g_rand_int (rand_) & (1 << 15)) != 0) |
69 | |
70 | GLIB_AVAILABLE_IN_ALL |
71 | guint32 g_rand_int (GRand *rand_); |
72 | GLIB_AVAILABLE_IN_ALL |
73 | gint32 g_rand_int_range (GRand *rand_, |
74 | gint32 begin, |
75 | gint32 end); |
76 | GLIB_AVAILABLE_IN_ALL |
77 | gdouble g_rand_double (GRand *rand_); |
78 | GLIB_AVAILABLE_IN_ALL |
79 | gdouble g_rand_double_range (GRand *rand_, |
80 | gdouble begin, |
81 | gdouble end); |
82 | GLIB_AVAILABLE_IN_ALL |
83 | void g_random_set_seed (guint32 seed); |
84 | |
85 | #define g_random_boolean() ((g_random_int () & (1 << 15)) != 0) |
86 | |
87 | GLIB_AVAILABLE_IN_ALL |
88 | guint32 g_random_int (void); |
89 | GLIB_AVAILABLE_IN_ALL |
90 | gint32 g_random_int_range (gint32 begin, |
91 | gint32 end); |
92 | GLIB_AVAILABLE_IN_ALL |
93 | gdouble g_random_double (void); |
94 | GLIB_AVAILABLE_IN_ALL |
95 | gdouble g_random_double_range (gdouble begin, |
96 | gdouble end); |
97 | |
98 | |
99 | G_END_DECLS |
100 | |
101 | #endif /* __G_RAND_H__ */ |
102 | |