P2509 R1 A proposal for a type trait to detect value-preserving conversions

[wg21bot]

P2509R0 A proposal for a type trait to detect value-preserving conversions (Giuseppe D'Angelo)

[mattkretz]

Up for SG6 review on 2022-02-17.

[mattkretz]

P2509R0: A proposal for a type trait to detect value-preserving conversions

2022-02-17 SG6 Telecon Minutes

Chair: Matthias Kretz

Champion: Giuseppe D'Angelo

Minute Taker: Dietmar Kühl

SUMMARY: If it works, it should be useful. However, there are unexplored concerns about user-defined numeric types (example: type representing x * pi); exploration of opt-in/-out possibilities for UDT. More motivation for applying the trait to user-defined types needed.

POLL: We would like to invest more time in this trait/topic.

SF	F	N	A	SA
2	1	4	1	0

# of Authors: 1
# of Participants: 9
Author Position: SF
Outcome: weak consensus
Comments: Solution in search of a problem; more motivation for the large scope required.