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/* GLIB - Library of useful routines for C programming * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ /* * Modified by the GLib Team and others 1997-2000. See the AUTHORS * file for a list of people on the GLib Team. See the ChangeLog * files for a list of changes. These files are distributed with * GLib at ftp://ftp.gtk.org/pub/gtk/. */ #ifndef __G_RAND_H__ #define __G_RAND_H__ #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) #error "Only <glib.h> can be included directly." #endif #include <glib/gtypes.h> G_BEGIN_DECLS typedef struct _GRand GRand; /* GRand - a good and fast random number generator: Mersenne Twister * see http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html for more info. * The range functions return a value in the interval [begin, end). * int -> [0..2^32-1] * int_range -> [begin..end-1] * double -> [0..1) * double_range -> [begin..end) */ GLIB_AVAILABLE_IN_ALL GRand* g_rand_new_with_seed (guint32 seed); GLIB_AVAILABLE_IN_ALL GRand* g_rand_new_with_seed_array (const guint32 *seed, guint seed_length); GLIB_AVAILABLE_IN_ALL GRand* g_rand_new (void); GLIB_AVAILABLE_IN_ALL void g_rand_free (GRand *rand_); GLIB_AVAILABLE_IN_ALL GRand* g_rand_copy (GRand *rand_); GLIB_AVAILABLE_IN_ALL void g_rand_set_seed (GRand *rand_, guint32 seed); GLIB_AVAILABLE_IN_ALL void g_rand_set_seed_array (GRand *rand_, const guint32 *seed, guint seed_length); #define g_rand_boolean(rand_) ((g_rand_int (rand_) & (1 << 15)) != 0) GLIB_AVAILABLE_IN_ALL guint32 g_rand_int (GRand *rand_); GLIB_AVAILABLE_IN_ALL gint32 g_rand_int_range (GRand *rand_, gint32 begin, gint32 end); GLIB_AVAILABLE_IN_ALL gdouble g_rand_double (GRand *rand_); GLIB_AVAILABLE_IN_ALL gdouble g_rand_double_range (GRand *rand_, gdouble begin, gdouble end); GLIB_AVAILABLE_IN_ALL void g_random_set_seed (guint32 seed); #define g_random_boolean() ((g_random_int () & (1 << 15)) != 0) GLIB_AVAILABLE_IN_ALL guint32 g_random_int (void); GLIB_AVAILABLE_IN_ALL gint32 g_random_int_range (gint32 begin, gint32 end); GLIB_AVAILABLE_IN_ALL gdouble g_random_double (void); GLIB_AVAILABLE_IN_ALL gdouble g_random_double_range (gdouble begin, gdouble end); G_END_DECLS #endif /* __G_RAND_H__ */