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/*
* Copyright © 2018 Endless Mobile, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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/>.
*
* Author: Philip Withnall <withnall@endlessm.com>
*/
#ifndef __G_UTILS_PRIVATE_H__
#define __G_UTILS_PRIVATE_H__
#include "glibconfig.h"
#include "gtypes.h"
#include "gtestutils.h"
#include <math.h>
#include <time.h>
G_BEGIN_DECLS
void g_set_user_dirs (const gchar *first_dir_type,
...) G_GNUC_NULL_TERMINATED;
/* Returns the smallest power of 2 greater than or equal to n,
* or 0 if such power does not fit in a gsize
*/
static inline gsize
g_nearest_pow (gsize num)
{
gsize n = num - 1;
g_assert (num > 0 && num <= G_MAXSIZE / 2);
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
#if GLIB_SIZEOF_SIZE_T == 8
n |= n >> 32;
#endif
return n + 1;
}
void _g_unset_cached_tmp_dir (void);
gboolean _g_localtime (time_t timet, struct tm *tm);
gboolean g_set_prgname_once (const gchar *prgname);
/* Although isnan() is defined as a type-independent macro in C99, mingw32
* doesn’t seem to support that (it defines `isnan (float d)` only). Older
* MSVC toolchains don’t support C99 either. So we provide an internal
* abstraction macro.
*
* This should not be made public; toolchains will soon enough catch up with
* C99, so third party code should just use isnan(). */
static inline int
g_isnan (double d)
{
#if (defined (_MSC_VER) && (_MSC_VER < 1800)) || defined(__MINGW32__)
return _isnan (d);
#else
return isnan (d);
#endif
}
G_END_DECLS
#endif /* __G_UTILS_PRIVATE_H__ */
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