Re: Why is there no value in GH0100?

[Rob Berendt <rob@xxxxxxxxx>]

The only reason I was using the varying length variable is to 
support a nice generic prototype that I could use wherever.  
When I read from a userspace I may want a larger or smaller size 
depending on what I am reading.  For example, even within the 
same list api, I choose to use a different size for the generic 
header than I do for the list entry.  In that program, to use 
CALLP, I would have to do 1 of 2 things.  1)  Set up multiple 
prototypes.  2)  Use one variable big enough for each case and 
move from/to the real variables.

Now, if I slap that prototype in my /copy module and try to read 
from a user space in another application, and it needs a bigger 
area, then I have to change my prototype to this new size.  Still
doing the moving from/to stuff.

The other workaround is to just use the biggest size an alphanumeric 
variable can get.  You still have the moving from/to.  But, some 
string manipulation on large characters can get processor intensive.  
I wrote a generic center a character field routines with a stinking 
huge variable.  Limiting the variable improved the response time 
dramatically.  Oh well, in this case I wouldn't be doing some string 
manipulation, or would I?





boldt@ca.ibm.com on 02/02/2000 04:28:19 PM
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Subject:        Re: Why is there no value in GH0100?



Rob wrote:
>Thank you.  Guess I'll return to the old CALL,PARM interface, at least for
this one case.  I >tend to prototype on reusable stuff only.

Huh?  Using CALL/PARM instead of CALLP isn't going to change
anything.  The problem is with using a char varying field as
the 4th parm instead of a fixed length field.

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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