RE: API prototypes in /COPY member

A few suggestions to improve your error data structure:

Please don't use the "B" data type when calling an API.  Ever.
The I and U data types were created because the B data type doesn't
perform well and doesn't support the full range of numbers that could be
represented in binary.

Your code is really easy to convert.   Just do this:

D Error           DS
D Er_BytesPr              1      4I 0
D Er_BytesAv              5      8I 0
D Er_MsgID                9     15
D Er_Reserv              16     16
D Er_MsgDta              17    272

That was very easy.  I only had to change two letters to make it use
the "I" data type.

Also, you should consider initializing the bytes provided and bytes
available items on the definition of the structure.   This helps a lot
when you use this structure in a /copy member because you don't have
to remember to add code to initialize it in your calc-specs.

It's another easy change:

D Error           DS
D Er_BytesPr              1      4I 0  INZ(272)
D Er_BytesAv              5      8I 0  INZ(0)
D Er_MsgID                9     15
D Er_Reserv              16     16
D Er_MsgDta              17    272



On Tue, 5 Mar 2002, Geert Van Landeghem wrote:

> Peter,
>
> For the error code description have look at page 2-8 in System Api Concepts:
> http://publib.boulder.ibm.com/html/as400/v5r1/ic2924/books/c4158000.pdf
>
> I'm always using this data structure in a /COPY member:
>
> *************************************************
> ** Error Datastructure
> *************************************************
> D Error           DS
> D Er_BytesPr              1      4B 0
> D Er_BytesAv              5      8B 0
> D Er_MsgID                9     15
> D Er_Reserv              16     16
> D Er_MsgDta              17    272
> *************************************************
>
> For a description of UIM and examples have look at
> Application Display Programming
>
> http://publib.boulder.ibm.com/html/as400/v5r1/ic2924/books/c4157150.pdf
>
> or
>
> http://publib.boulder.ibm.com/pubs/html/as400/online/v4r5eng.htm
> (chapter 16)
>