golden hour

/usr/include/glib-2.0/glib

File/Folder	Size	Actions
deprecated	-
galloca.h	3.82 KB
garray.h	11.12 KB
gasyncqueue.h	5.59 KB
gatomic.h	26.57 KB
gbacktrace.h	2.73 KB
gbase64.h	2.27 KB
gbitlock.h	2.83 KB
gbookmarkfile.h	12.33 KB
gbytes.h	3.26 KB
gcharset.h	1.54 KB
gchecksum.h	3.77 KB
gconvert.h	5.78 KB
gdataset.h	6.1 KB
gdate.h	12.13 KB
gdatetime.h	12.44 KB
gdir.h	1.6 KB
genviron.h	2.31 KB
gerror.h	10.88 KB
gfileutils.h	7.68 KB
ggettext.h	2.37 KB
ghash.h	7.7 KB
ghmac.h	3.39 KB
ghook.h	6.21 KB
ghostutils.h	1.42 KB
gi18n-lib.h	1.34 KB
gi18n.h	1.14 KB
giochannel.h	13.63 KB
gkeyfile.h	14.56 KB
glib-autocleanups.h	4.79 KB
glist.h	6.77 KB
gmacros.h	45.12 KB
gmain.h	27.55 KB
gmappedfile.h	1.94 KB
gmarkup.h	10.62 KB
gmem.h	14.51 KB
gmessages.h	26.56 KB
gnode.h	8.5 KB
goption.h	15.72 KB
gpattern.h	1.74 KB
gpoll.h	4.03 KB
gprimes.h	1.65 KB
gprintf.h	1.94 KB
gqsort.h	1.46 KB
gquark.h	2.63 KB
gqueue.h	7.57 KB
grand.h	3.11 KB
grcbox.h	3.9 KB
grefcount.h	3.89 KB
grefstring.h	1.82 KB
gregex.h	27.44 KB
gscanner.h	8.65 KB
gsequence.h	8.6 KB
gshell.h	1.71 KB
gslice.h	4.48 KB
gslist.h	6.4 KB
gspawn.h	12.89 KB
gstdio.h	4.99 KB
gstrfuncs.h	13.14 KB
gstring.h	8.14 KB
gstringchunk.h	2.08 KB
gstrvbuilder.h	1.58 KB
gtestutils.h	34.31 KB
gthread.h	18.32 KB
gthreadpool.h	3.73 KB
gtimer.h	2.52 KB
gtimezone.h	3.81 KB
gtrashstack.h	1.86 KB
gtree.h	6.3 KB
gtypes.h	20.04 KB
gunicode.h	40.25 KB
guri.h	16.06 KB
gutils.h	14.22 KB
guuid.h	1.26 KB
gvariant.h	28.87 KB
gvarianttype.h	12.93 KB
gversion.h	1.93 KB
gversionmacros.h	46.56 KB
gwin32.h	4.56 KB

Edit: grand.h

/* 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__ */