mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-01-06 04:46:16 +01:00
f9faac7661
All glib/*.{c,h} files have been processed, as well as gtester-report. 12 of those files are not licensed under LGPL: gbsearcharray.h gconstructor.h glibintl.h gmirroringtable.h gscripttable.h gtranslit-data.h gunibreak.h gunichartables.h gunicomp.h gunidecomp.h valgrind.h win_iconv.c Some of them are generated files, some are licensed under a BSD-style license and win_iconv.c is in the public domain. Sub-directories inside glib/: deprecated/: processed in a previous commit glib-mirroring-tab/: already LGPLv2.1+ gnulib/: not modified, the code is copied from gnulib libcharset/: a copy pcre/: a copy tests/: processed in a previous commit https://bugzilla.gnome.org/show_bug.cgi?id=776504
97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/* 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/.
|
|
*/
|
|
|
|
/*
|
|
* MT safe
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gprimes.h"
|
|
|
|
|
|
static const guint g_primes[] =
|
|
{
|
|
11,
|
|
19,
|
|
37,
|
|
73,
|
|
109,
|
|
163,
|
|
251,
|
|
367,
|
|
557,
|
|
823,
|
|
1237,
|
|
1861,
|
|
2777,
|
|
4177,
|
|
6247,
|
|
9371,
|
|
14057,
|
|
21089,
|
|
31627,
|
|
47431,
|
|
71143,
|
|
106721,
|
|
160073,
|
|
240101,
|
|
360163,
|
|
540217,
|
|
810343,
|
|
1215497,
|
|
1823231,
|
|
2734867,
|
|
4102283,
|
|
6153409,
|
|
9230113,
|
|
13845163,
|
|
};
|
|
|
|
/**
|
|
* g_spaced_primes_closest:
|
|
* @num: a #guint
|
|
*
|
|
* Gets the smallest prime number from a built-in array of primes which
|
|
* is larger than @num. This is used within GLib to calculate the optimum
|
|
* size of a #GHashTable.
|
|
*
|
|
* The built-in array of primes ranges from 11 to 13845163 such that
|
|
* each prime is approximately 1.5-2 times the previous prime.
|
|
*
|
|
* Returns: the smallest prime number from a built-in array of primes
|
|
* which is larger than @num
|
|
*/
|
|
guint
|
|
g_spaced_primes_closest (guint num)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (g_primes); i++)
|
|
if (g_primes[i] > num)
|
|
return g_primes[i];
|
|
|
|
return g_primes[G_N_ELEMENTS (g_primes) - 1];
|
|
}
|