1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
C
C Demonstrates the use of sprng and isprng
C A random number stream is initialized and a few random double precision
C numbers and a few integers are printed.
C
program sprngf_simple
implicit none
#define SIMPLE_SPRNG
#include "sprng_f.h"
SPRNG_POINTER junkPtr
real*8 rn
integer seed, irn, i, junk
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---
seed = 985456376
C initialization
junkPtr = init_sprng(gtype,seed,SPRNG_DEFAULT)
print *, 'Print information about new stream:'
junk = print_sprng()
print *, 'Printing 3 random numbers in [0,1):'
do 100 i = 1, 3
rn = sprng()
write(*,"(f8.6)") rn
100 continue
print *, 'Printing 3 random integers in [0,2^31):'
do 200 i = 1, 3
irn = isprng()
write(*,"(i16)") irn
200 continue
end
|
