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>> That's not true, I use this method all the time and have never
encountered a time when all the fields didn't get populated after a
read.
And I had always believed that until recently when trying to resolve
an issue that came up on another forum - see
http://www.code400.com/forum/showthread.php/9364-Hi
for the details.
But I must explore further because you have got me wondering whether
there is a difference between a DS where you simply list the field
names and an externally described one. It wouldn't make any sense for
the compiler to do it that way but ...
>> Notice that in the DSPECS, I did not redefine how the fields are
defined. So the program is using the fields from the file therefore
they are being used in the program.
As I said I am very familiar with the technique - I published it years
ago and teach it frequently.
>>How is the example I gave too error prone. If the field sizes are
identical, there's nothing to screw up. In this example position 1 is
where field 1 begins. If you try to dim incorrectly the editor will
tell you that it's wrong. Also that's what testing is for.
OK - too error prone for _me_ - you manually specified the length and
told the compiler to divide by 20 i.e.
D array 1 100 Dim(20)
If all the elements are the same - which of course they have to be -
then a safer approach surely would be:
D array Like(Field1) Dim(20)
That way if the field definitions change it self-corrects. As far as
I'm concerned testing should be a last resort - if there are coding
techniques that I can use to reduce./remove the possibility of error
then I prefer to use them particularly as in this case it means _less_
work (no calculation of total length needed)
Jon Paris
www.Partner400.com
www.SystemiDeveloper.com
midrange.com
