VLC  3.0.15
vlc_rand.h
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1 /*****************************************************************************
2  * vlc_rand.h: RNG
3  *****************************************************************************
4  * Copyright © 2007 Rémi Denis-Courmont
5  * $Id: 3ae95ac04c55f46d116481eb89255b013f6d1c32 $
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU Lesser General Public License as published by
9  * the Free Software Foundation; either version 2.1 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with this program; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
20  *****************************************************************************/
21 
22 #ifndef VLC_RAND_H
23 # define VLC_RAND_H
24 
25 /**
26  * \file
27  * This file defined random number generator function in vlc
28  */
29 
30 VLC_API void vlc_rand_bytes(void *buf, size_t len);
31 
32 /* Interlocked (but not reproducible) functions for the POSIX PRNG */
33 VLC_API double vlc_drand48(void) VLC_USED;
34 VLC_API long vlc_lrand48(void) VLC_USED;
35 VLC_API long vlc_mrand48(void) VLC_USED;
36 
37 #endif
VLC_API
#define VLC_API
Definition: fourcc_gen.c:30
vlc_common.h
vlc_lrand48
long vlc_lrand48(void)
PRNG uniformly distributed between 0 and 2^32 - 1.
Definition: rand.c:78
vlc_mrand48
long vlc_mrand48(void)
PRNG uniformly distributed between -2^32 and 2^32 - 1.
Definition: rand.c:98
vlc_drand48
double vlc_drand48(void)
PRNG uniformly distributed between 0.0 and 1.0 with 48-bits precision.
Definition: rand.c:58
vlc_rand_bytes
void vlc_rand_bytes(void *buf, size_t len)
Definition: rand.c:27
VLC_USED
#define VLC_USED
Definition: fourcc_gen.c:31