author | hgs |
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/* GLIB - Library of useful routines for C programming |
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
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* Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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/* |
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS |
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* file for a list of people on the GLib Team. See the ChangeLog |
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* files for a list of changes. These files are distributed with |
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* GLib at ftp://ftp.gtk.org/pub/gtk/. |
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*/ |
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#ifndef __G_RAND_H__ |
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#define __G_RAND_H__ |
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#include <_ansi.h> |
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#include <glib/gtypes.h> |
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G_BEGIN_DECLS |
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typedef struct _GRand GRand; |
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/* GRand - a good and fast random number generator: Mersenne Twister |
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* see http://www.math.keio.ac.jp/~matumoto/emt.html for more info. |
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* The range functions return a value in the intervall [begin, end). |
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* int -> [0..2^32-1] |
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* int_range -> [begin..end-1] |
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* double -> [0..1) |
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* double_range -> [begin..end) |
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*/ |
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IMPORT_C GRand* g_rand_new_with_seed (guint32 seed); |
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IMPORT_C GRand* g_rand_new_with_seed_array (const guint32 *seed, |
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guint seed_length); |
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IMPORT_C GRand* g_rand_new (void); |
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IMPORT_C void g_rand_free (GRand *rand_); |
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IMPORT_C GRand* g_rand_copy (GRand *rand_); |
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IMPORT_C void g_rand_set_seed (GRand *rand_, |
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guint32 seed); |
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IMPORT_C void g_rand_set_seed_array (GRand *rand_, |
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const guint32 *seed, |
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guint seed_length); |
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#define g_rand_boolean(rand_) ((g_rand_int (rand_) & (1 << 15)) != 0) |
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IMPORT_C guint32 g_rand_int (GRand *rand_); |
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IMPORT_C gint32 g_rand_int_range (GRand *rand_, |
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gint32 begin, |
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gint32 end); |
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IMPORT_C gdouble g_rand_double (GRand *rand_); |
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IMPORT_C gdouble g_rand_double_range (GRand *rand_, |
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gdouble begin, |
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gdouble end); |
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IMPORT_C void g_random_set_seed (guint32 seed); |
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#define g_random_boolean() ((g_random_int () & (1 << 15)) != 0) |
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IMPORT_C guint32 g_random_int (void); |
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IMPORT_C gint32 g_random_int_range (gint32 begin, |
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gint32 end); |
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IMPORT_C gdouble g_random_double (void); |
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IMPORT_C gdouble g_random_double_range (gdouble begin, |
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gdouble end); |
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G_END_DECLS |
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#endif /* __G_RAND_H__ */ |
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