json/include/nlohmann at f3ae7f618eddde304b9dca21b7680b7897b3951c - json

amorfo77/json

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Niels Lohmann f3ae7f618e Flatten into a std::map by inserting next to the previous entry

flatten() added every path with operator[], so each insertion into the
std::map of the result searched the tree from the root and compared long
shared path prefixes, which took half the time on canada.json. Paths come
out in nearly sorted order, so they are now inserted with emplace_hint
next to the entry added last, for object types that have it. ordered_map
keeps its append without lookup, and other object types keep
operator[].

Path segments are also appended in place, without a temporary string
for each escaped key or array index.

flatten() of canada.json, citm_catalog.json and twitter.json is 1.4x to
1.9x as fast; ordered_json is unchanged (1.05x). The output is
unchanged.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

2026-10-17 08:28:59 +02:00

detail

Flatten into a std::map by inserting next to the previous entry

2026-10-17 08:28:59 +02:00

thirdparty/hedley

Undefine the four JSON_HEDLEY_* macros that leak after including json.hpp (#5475 )

2026-09-09 09:48:17 +02:00

adl_serializer.hpp

📄 adjust year (#5044 )

2026-01-01 20:00:39 +01:00

byte_container_with_subtype.hpp

📄 adjust year (#5044 )