RE: lifetime of a static variable

[Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>]

Perhaps I misunderstood the definition in the manual, which I did read
before posting my question.  I assumed the part about "even if
reinitialization occurs for global definitions as part of normal cycle
processing" referred to something other than ending the program and calling
it again.  I suspect the reference to "cycle processing" threw me off.


Apparently this means that, under the right circumstances, ending a single
module program with lr on does not make it "go away."  

The question remains, whether or not it was designed to work this way, is
this the way it ought to work?

> -----Original Message-----
> From: bmorris@ca.ibm.com [mailto:bmorris@ca.ibm.com]
> Sent: Tuesday, November 14, 2000 3:03 PM
> To: RPG400-L@midrange.com
> Subject: Re: lifetime of a static variable
> 
> 
> 
> >Date: Tue, 14 Nov 2000 13:09:02 -0800
> >From: Joel Fritz <JFritz@sharperimage.com>
> >
> >What is the lifetime of a a local static variable?
> > ...
> >.... It seems to me that
> >the lifetime of the variable is the lifetime of the 
> activation group since
> >when I sign off and call the program after signing on again, 
> the value
> goes
> >back to 1 for the first call.
> >
> >Is this the way it ought to work?  Seems like static local variables
> >shouldn't outlive the programs to which they are local when 
> the program
> ends
> >with lr on.
> 
> Joel, that's the way it's documented to work (see the entry for the
> STATIC keyword in the reference).
>   " ... it is _not_ reinitialized again, even if 
> reinitialization occurs
>    for global definitions as part of normal cycle processing."
> 
> Your best bet is either to move the static variable into global
> definitions, or set up some other static variable in globals that
> says to initialize subproc static.
> 
> D inzSubpStatic    s         n      inz(*on)
> 
> P subp             b
> D staticVar        s       10a      static inz('x')
> C          if     inzSubpStatic
> C          eval   inzSubpStatic = *off
> C          reset  staticVar
> C          endif
> P                  e
> 
> By the way, don't forget that each module has its own LR.  
> It's not the
> program that ends with LR on, it's the main procedure in the module.
> 
> Barbara Morris
> 
> 
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