RE: Random Numbers

After reading the CEERANO info my previous message was way off. According 
to IBM info this should return a value between 0 and 1 exclusive.

Basic Random Number Generation (CEERAN0) API
The Basic Random Number Generation (CEERAN0) API generates a sequence of 
uniform pseudorandom numbers between 0 and 1 using the multiplicative 
congruential method with a user-specified seed. 


Required Parameter Group:



1
seed
I/O
INT4
2
random_no
Output
FLOAT8


Omissible Parameter:




3
fc
Output
FEEDBACK



Required Parameter Group
seed (I/O) 
A 32-bit binary integer representing an initial value used to generate 
random numbers. It must be a variable; that is, it cannot be an input-only 
parameter. The valid range is 0 to 2 147 483 646. 
If the value of the seed parameter is 0, the seed is generated from the 
current Greenwich Mean Time. 
On return, CEERAN0 changes the value of seed so that it may be used as the 
new seed in the next call. 
random_no (output) 
A 64-bit double floating-point pseudorandom number with a value between 0 
and 1, exclusive. If seed is not valid, random_no is set to -1 and CEERAN0 
ends with a nonzero feedback code. 
Omissible Parameter
fc (output) 
A 12-byte feedback code passed by reference. If specified as an argument, 
feedback information (a condition token) is returned to the calling 
procedure. If not specified, and the requested operation was not 
successfully completed, the condition is signaled to the condition 
manager. 
Feedback Codes and Conditions

CEE0000
Severity: 00


The API completed successfully 
CEE2523
Severity: 10


UTC not available to generate random seed from system time 
CEE2524
Severity: 30


Seed value for &1 is not valid