Man page - seed48_r(3)

Packages contains this manual

Available languages:

en fr ja ru ro de

Manual

drand48_r

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
STANDARDS
SEE ALSO

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

LIBRARY

Standard C library ( libc , -lc )

SYNOPSIS

#include <stdlib.h>

int drand48_r(struct drand48_data *restrict buffer ,
double *restrict result );
int erand48_r(unsigned short xsubi [3] ,
struct drand48_data *restrict buffer ,
double *restrict result );

int lrand48_r(struct drand48_data *restrict buffer ,
long *restrict result );
int nrand48_r(unsigned short xsubi[3] ,
struct drand48_data *restrict buffer ,
long *restrict result );

int mrand48_r(struct drand48_data *restrict buffer ,
long *restrict result );
int jrand48_r(unsigned short xsubi[3] ,
struct drand48_data *restrict buffer ,
long *restrict result );

int srand48_r(long int seedval , struct drand48_data * buffer );
int seed48_r(unsigned short seed16v[3] , struct drand48_data * buffer );
int lcong48_r(unsigned short param[7] , struct drand48_data * buffer );

Feature Test Macro Requirements for glibc (see feature_test_macros (7)):

All functions shown above:
/* glibc >= 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE

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 ().

RETURN VALUE

The return value is 0.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

Image grohtml-451693-1.png

STANDARDS

GNU.

SEE ALSO

drand48 (3), rand (3), random (3)