Name
drand48_r, erand48_r, lrand48_r, nrand48_r, mrand48_r, jrand48_r, srand48_r, seed48_r, lcong48_r — generate uniformly distributed pseudo-random numbers reentrantly
Synopsis
#include <stdlib.h>
int
drand48_r( |
struct drand48_data *buffer, |
double *result); |
int
erand48_r( |
unsigned short xsubi[3], |
| struct drand48_data *buffer, | |
double *result); |
int
lrand48_r( |
struct drand48_data *buffer, |
long int *result); |
int
nrand48_r( |
unsigned short int xsubi[3], |
| struct drand48_data *buffer, | |
long int *result); |
int
mrand48_r( |
struct drand48_data *buffer, |
long int *result); |
int
jrand48_r( |
unsigned short int xsubi[3], |
| struct drand48_data *buffer, | |
long int *result); |
int
srand48_r( |
long int seedval, |
struct drand48_data *buffer); |
int
seed48_r( |
unsigned short int seed16v[3], |
struct drand48_data *buffer); |
int
lcong48_r( |
unsigned short int param[7], |
struct drand48_data *buffer); |
![[Note]](../stylesheet/note.png) |
Note | ||||
|---|---|---|---|---|---|
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DESCRIPTION
These functions are the reentrant analogs of the functions
described in drand48(3). Instead of
modifying the global random generator state, they use the
supplied data buffer.
Before the first use, this struct must be initialized, for
example, by filling it with zeros, or by calling one of the
functions srand48_r(),
seed48_r(), or lcong48_r().
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
drand48_r(), erand48_r(), lrand48_r(), nrand48_r(), mrand48_r(), jrand48_r(), srand48_r(), seed48_r(), lcong48_r() |
Thread safety | MT-Safe race:buffer |
COLOPHON
This page is part of release 4.07 of the Linux man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man−pages/.
|
Copyright 2003 Walter Harms, 2004 Andries Brouwer <aebcwi.nl>. %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. %%%LICENSE_END Created 2004-10-31. Text taken from a page by Walter Harms, 2003-09-08 |