gprimes.h

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00001 /* GLIB - Library of useful routines for C programming
00002  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
00003  * Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Lesser General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Lesser General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public
00016  * License along with this library; if not, write to the
00017  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00018  * Boston, MA 02111-1307, USA.
00019  */
00020 
00021 /*
00022  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
00023  * file for a list of people on the GLib Team.  See the ChangeLog
00024  * files for a list of changes.  These files are distributed with
00025  * GLib at ftp://ftp.gtk.org/pub/gtk/. 
00026  */
00027 
00028 #ifndef __G_PRIMES_H__
00029 #define __G_PRIMES_H__
00030 
00031 #include <_ansi.h>
00032 #include <glib/gtypes.h>
00033 
00034 G_BEGIN_DECLS
00035 
00036 /* Prime numbers.
00037  */
00038 
00039 /* This function returns prime numbers spaced by approximately 1.5-2.0
00040  * and is for use in resizing data structures which prefer
00041  * prime-valued sizes.  The closest spaced prime function returns the
00042  * next largest prime, or the highest it knows about which is about
00043  * MAXINT/4.
00044  */
00045 IMPORT_C guint     g_spaced_primes_closest (guint num) G_GNUC_CONST;
00046 
00047 G_END_DECLS
00048 
00049 #endif /* __G_PRIMES_H__ */

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