Re: RPG File Input/Output Specs

[Barbara Morris <bmorris@xxxxxxxxxx>]

Kurt Anderson wrote:
> In 6.1, if you specify that you don't want unused variables, would it
> then remove those variables at compile time (before checking for
> conflicting field definitions)?  I'm guessing no, otherwise you would
> have mentioned it, but it seems like it should fall into that
> category.

If a variable appears on an O spec, the compiler assumes that the 
variable is used.  It _could_ remember that it had only generated that 
particular =O spec just in case it was needed later, and only keep that 
field if the record actually got output or updated, but it doesn't ...

The 6.1 change to eliminate unused variables from the program didn't 
involve any changes in how the compiler actually determines that a 
variable is unused.