Tail operator usage

Imported from previous forum

[ original email was from Dmitriy Ovdienko - odp@btobits.com ]
Hi All

There is no possibility to transfer string or byte vector less
than base value using tail operator (according to $6.3.8 of the
FAST spec v 1.x.07).

So, is this operator applicable only for constant length or increasing length arrays?

Best regards,
Dmitriy Ovdienko

Hi Dimitriy,

that’s correct.

The original use case for string tail (aka 1.0 string delta)
was for pretty much limited to the encoding of ISIN codes.

Several developers commented on the limitations and suggested
alternate schemes. The FAST 1.1 string delta is the result of
the post-1.0 discussions.

String tail (was 1.0 string delta) has been retained for
backward compatibility with 1.0.

Best,
Rolf

Hi All

There is no possibility to transfer string or byte vector less
than base value using tail operator (according to $6.3.8 of
the FAST spec v 1.x.07).

So, is this operator applicable only for constant length or
increasing length arrays?

Best regards, Dmitriy Ovdienko