P1295 Spaceship library update

[jensmaurer]

P1295R0 Spaceship library update (Tomasz Kamiński)

https://issues.isocpp.org/show_bug.cgi?id=551

[jensmaurer]

Titus Winters 2018-11-07 03:47:03 UTC
Discussed in San Diego: http://wiki.edg.com/bin/view/Wg21sandiego2018/P1295

Allow equality comparison for comparison_category.
SF F N A SA
4 6 1 0 0

Fix common_type to return the same result as common_comparison_category when common_comparison_category returns a result.
SF F N A SA
3 8 0 0 0

(Make sure to clarify that common_type and common_comparison_category differ in how they respond to comparison between incomparable types.)

Move compare_3way back into compare
SF F N A SA
2 5 3 0 0

Revise as above and forward to LWG for C++20.
Unanimous consent

[jensmaurer]

No update from author for 2019-02 Kona meeting.

[mclow]

No wording in paper. Not ready for LWG.

5. Proposed Wording
   TBD.

[jensmaurer]

Integrated into P1614 The Mothership Has Landed: Adding <=> to the Library #391.