RE: RPG400 to RPG IV conversion - INFDS

[mrothman@xxxxxxxxxx]

It appears that the problem is that binary 4,0 is a two-byte field, which
by definition limits the maximum decimal value to 9999.

The field's uninitialized state of X'4040' (blanks because it is a data
structure subfield) is 16448 decimal.  The high-order 1 is being dropped,
resulting in decimal 6448.

Here is the relevant text from the ILE-RPG reference manual (works the same
in "classic" RPG/400).

Every ... binary format is assigned a field length (number of digits) by
the compiler.  A length of 4 is assigned to a 2-byte binary field;...the
highest decimal value that can be assigned to a 2-byte binary field is
9999... This discussion assumes zero decimal positions....  Because a
2-byte field in binary format is converted by the compiler to a decimal
field with 1 to 4 digits, the input value may be too large. If it is, the
leftmost digit of the number is dropped. For example, if a four digit
binary input field has a binary value of hexadecimal 6000, the compiler
converts this to 24 576 in decimal. The 2 is dropped and the result is
4576....   you can avoid this conversion problem by defining integer fields
instead of binary fields.



Mel Rothman
IBM AS/400 Custom Technology Center
3605 Highway 52 North
Rochester, MN 55901

-----Original Message-----
From:     Buck Calabro/commsoft [mailto:mcalabro@commsoft.net]
Sent:     Friday, January 22, 1999 9:25 AM
To:  RPG400-L@midrange.com
Subject:  RE: RPG400 to RPG IV conversion - INFDS


          Jon Erikson wrote:
          >They compiled just fine, but when you actually
          >reference them, the program fails with an MCH1210,
          >(Receiver value too small to hold result) and
          >RNQ0103, (The target for a numeric operation is
          >too small to hold the result (C G D F)).
          >
          >Here is the DS source & Dumped values:
          >
          >0025.00 D Prnt            DS
          >0026.00 D Curln                 367    368b 0
          >+++++++++++++++++++++
          >PRNT                  DS
          >  CURLN               BIN(4,0)             6448. '4040'X
          ...snip, snip


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