A float that was not part of a run in an array (an object member, a float in a
mixed array) went through write_compact_float(), with a sink call for its
marker and one through a std::array for its bytes.
It is now encoded by the function that encodes the floats of a run, into space
reserved from the sink.
CBOR keeps the previous code for these floats: giving them the same treatment
made GCC 13 stop inlining the encoder into the loop for the floats of an array,
which cost 4 percent more instructions for canada and citm_catalog.
Instructions per call (Linux, GCC 13, thousands), to_msgpack: 20000 small objects 14601 -> 13641.
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
Niels Lohmann
f41f6408eb