Erik Ekman 145efb1a33 Fix edge case in pbuf_take_at() ...

Writes to offsets pointing to the start of a pbuf in the chain
did nothing and just returned ERR_OK.

Added unit tests to verify the fix, and also
that pbuf_get_at()/pbuf_put_at() handles this case.

2015-08-03 20:34:08 +02:00

..

unit

Fix edge case in pbuf_take_at()

2015-08-03 20:34:08 +02:00