enums

name	enums
description	How to declare and use enums in Corvid - registering a `class enum` as a sequence or bitmask enum for string conversion, and the helpers that registration unlocks. Use when declaring a `class enum`, wiring up enum<->string conversion, or working with bitmask flags.

Enums

Whenever you declare a class enum, consider whether it should be registered as a bitmask or sequence enum. If so, declare a corvid_enum_spec(E*) overload in the enum's own namespace, returning a make_sequence_enum_spec or make_bitmask_enum_spec result; it is found by ADL and must precede any use of the enum's string conversion. See quic_status in quic_header.h and write_stream_flags in quic_conn.h for the shape.

For registered enums, take full advantage of what registration unlocks: prefer operator* over static_cast to read the underlying value, and prefer the bitmask:: helpers (has, has_all, missing, set_at, etc., in bitmask_enum.h) over hand-rolled !!(v & m) or other bit-twiddling.