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On 2014-10-15 11:09, Gary Thompson wrote:
Birgitta, I guess the conversion to 'packed' happens during the API call (the
compile listing shows B(4,0) )
The binary field wouldn't be converted to packed for the API call. The
address of the binary field would be passed to the API which would then
look at the storage of the binary field followed by the next 2 bytes of
storage. If the binary field had the value 4096 (x'1000') and the
following 2 bytes were x'0000', the API would see the 4-byte binary
value x'10000000' which is decimal 268435456.
Binary fields are only converted to/from packed when they are used in
calculations. For example, if you have a 4B0 field NUM, and code
NUM = NUM + 1
the compiler defines a 4P0 temporary, call it temp4p.
temp4p = NUM
add 1 to temp4p
NUM = temp4p
If NUM was a 5I, the compiler would just add 1 to NUM directly.
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