mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-15 05:46:15 +01:00
d7ddf66938
glib/gprimes.c: In function ‘g_spaced_primes_closest’:
glib/gprimes.c:91:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’ [-Werror=sign-compare]
for (i = 0; i < G_N_ELEMENTS (g_primes); i++)
^
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)
|
|
{
|
|
gsize 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];
|
|
}
|