Re: Anyone need a random number generator?

On 4/28/2010 5:32 PM, Ron Hudson wrote:
> If I wanted to add other subroutines or functions to the
> source code would that be ok too?
>
> or should I duplicate this whole file and change names?

Neither?  Adding something to a system library is generally 
considered undesirable; just consider what you will do when the 
latest and greatest MVS release becomes available - do you 
rename the volumes, copy all your changes from the old system, 
and then name them back?

The common way of doing this is to use your own library, and 
concatenate it either in front, or behind, the system library 
when you run. For example:

//LKED.SYSLIB DD
//	DD   DISP=SHR,DSN=rons.library

Note that doing this requires that the format of your library be 
the same as the system's. Since SYS1.FORTLIB is a load-module 
library (PDS with RECFM=U), your link-edit output will be just 
fine. But in an earlier post you mentioned object code, which is 
what the compiler produces in SYSLIN, and you fed into to LKED 
step; these two forms are not interchangeable.



Gerhard Postpischil
Bradford, VT