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C
C Demonstrates invalid ID handling in inteface with pointer checking
C This prorgam prints a few random numbers, frees the stream, and then
C tries to use the stream again.
C
C do not uncomment the following line
#ifndef CHECK_POINTERS
#define CHECK_POINTERS
#endif
program invalid_IDf
implicit none
#include "sprng_f.h"
integer streamnum, nstreams, seed, i, junk
SPRNG_POINTER stream
real*8 rn
C--- reading in a generator type
integer gtype
#include "genf_types_menu.h"
print *,'Type in a generator type (integers: 0,1,2,3,4,5): '
read *, gtype
C---
streamnum = 0
nstreams = 1
seed = 985456376
C initialize stream
stream = init_sprng(gtype,streamnum,nstreams,seed,SPRNG_DEFAULT)
print *, 'Printing information about new stream'
junk = print_sprng(stream)
print *, 'Printing 3 double precision numbers [0,1): '
do 100 i = 1, 3
rn = sprng(stream)
print *, rn
100 continue
junk = free_sprng(stream)
print *, ' Expect a SPRNG error message on the use'
print *, ' of an invalid stream ID '
rn = sprng(stream)
print *, ' sprng returns ', rn,
& ' on being given an invalid stream ID'
end
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