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Niels LohmannandClaude Opus 5
96806af2dc
Checked against Abseil release 20250127.0 with the same workload as the other entries on the page (DOM access, dump, parse, CBOR/MessagePack/UBJSON round-trip, flatten, hash), with and without JSON_DIAGNOSTICS. absl::flat_hash_map and absl::node_hash_map work as ObjectType through an adapter that restores the template argument order and makes erase(iterator) return the following iterator, which Abseil's returns as void. The page now carries that adapter, and notes that absl::flat_hash_map does not keep references to the mapped values valid across insertions while absl::node_hash_map does. Both have a capacity() member, so JSON_DIAGNOSTICS already refreshes the parent pointers conservatively for them. absl::btree_map and absl::InlinedVector cannot be used at all: object_t and array_t are formed while basic_json is still incomplete, and both inspect their value type at class scope. std::map and std::vector are required by the standard to tolerate this, third-party containers generally are not, so the page states the constraint on its own rather than only per container. absl::InlinedVector does work as BinaryType, where it is instantiated with a complete type. absl::FixedArray and absl::Cord are not usable. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018hxZxz8svM54c6ATEvXp5E Signed-off-by: Niels Lohmann <mail@nlohmann.me>