BIND 10 #2052: dns::LabelSequence::compare()

[BIND 10 Development]

#2052: dns::LabelSequence::compare()
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                   Reporter:         |                 Owner:  muks
  jinmei                             |                Status:  reviewing
                       Type:  task   |             Milestone:
                   Priority:         |  Sprint-20120703
  medium                             |            Resolution:
                  Component:         |             Sensitive:  0
  libdns++                           |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  4
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by vorner):

 * owner:  vorner => muks


Comment:

 Hello

 First, I'd like to ask ‒ there's no relation between absolute and non-
 absolute name. But what about two non-absolute ones? Comparing "www" to
 "www" will return NONE. Is it what we want?

 Also, this comment is not true (in the documentation of
 `partial_compare`):
 {{{#!c++
 /// This method never throws an exception.
 }}}

 because of this:
 {{{#!c++
 if ((first_label > labelcount_) ||
     (first_label_other > other.labelcount_)) {
     isc_throw(BadValue, "Bad first label indices were passed");
 }
 }}}

 And, finally, I wanted to point out that we planned to extend the
 LabelSequence so it would be possible to be built on top of raw data
 instead of the Name object. I think we'll be using these in the new in-
 memory implementation. But then, this will not work. Would it be possible
 to modify the Name and the LabelSequence so that the `partial_match` code
 works both for the Name and for the internal data structures of
 LabelSequence, so the LabelSequence::compare would not use the Name object
 there?

-- 
Ticket URL: <http://bind10.isc.org/ticket/2052#comment:5>
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