Talk:ASCII art diagram converter: Difference between revisions

: Looking at the current implementation, it has the test data:

:<lang D> Header h;

h.ID = 10;

h.RA = true;

h.ARCOUNT = 255;

h.Opcode = 7;</lang>

:which gives the test output:

:<lang D>[0, 10, 56, 128, 0, 0, 0, 0, 0, 0, 0, 255]</lang>

:But note that the first number in the output is a zero and the second number is a 10. Meanwhile, the specification indicates that ID should be the first value. So that might be one issue.

:Note also that 56 corresponds to this bit sequence: 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 if we place the high order bits on the left (and RFC 1035 specifies "Whenever an octet represents a numeric quantity, the left most bit in

the diagram is the high order or most significant bit"). Since opcode was 7, I would have instead expected a value of 7168.

:Anyways, it should not be hard for a good D programmer to fix that implementation. --[[User:Rdm|Rdm]] ([[User talk:Rdm|talk]]) 15:52, 31 January 2014 (UTC)