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>
I int drand48_r(struct drand48_data * buffer , double * result );
I int erand48_r(unsigned short xsubi [3] ,
I struct drand48_data *buffer , double * result );
I int lrand48_r(struct drand48_data * buffer , long int * result );
I int nrand48_r(unsigned short int xsubi[3] ,
I struct drand48_data *buffer , long int * result );
I int mrand48_r(struct drand48_data * buffer ,long int * result );
I int jrand48_r(unsigned short int xsubi[3] ,
I struct drand48_data * buffer , long int * result );
I int srand48_r(long int seedval , struct drand48_data * buffer );
I int seed48_r(unsigned short int seed16v[3] ,
I struct drand48_data * buffer );
I int lcong48_r(unsigned short int param[7] ,
I struct drand48_data * buffer );
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
R buffer .
Before the first use, this struct must be initialized, for example,
by filling it with zeroes, or by calling one of the functions
R srand48_r (),
R seed48_r (),
or
R lcong48_r ().
RETURN VALUE
The return value is 0.
CONFORMING TO
These functions are GNU extensions and are not portable.
SEE ALSO
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