Niels Lohmann 21bc758b89 from_json: number-first dispatch for arithmetic types, loop for std::array (#5891) ...

from_json(ArithmeticType&) now reads numbers through get_number_value() and
handles a boolean on a cold path, which puts the three number types first in
the per-element type dispatch.

get<std::array<T, N>>() always took the identity_tag overload, a pack
expansion of N calls j.at(i).get<T>() that clang unrolls into straight-line
code (about 28,000 instructions for N = 1000), so its speed depended on
inlining decisions in that body. For trivial element types, which cannot tell
default construction plus assignment from construction in place, it now fills
a std::array in a loop. That loop, shared with get_to(), checks the size once
and reads the inner array directly; a short array still converts the elements
it has and then throws the out_of_range error at() would throw.

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

2026-10-23 16:00:12 +02:00

..

from_json.hpp

from_json: number-first dispatch for arithmetic types, loop for std::array (#5891)

2026-10-23 16:00:12 +02:00

to_chars.hpp

Use standard library helpers where available, with C++11 fallbacks (#5876)

2026-10-21 20:14:59 +02:00

to_json.hpp

Fix CI failures on develop from the API performance stack (#5860)

2026-10-16 19:16:21 +02:00

zmij.hpp

Fix CI failures on develop from the API performance stack (#5860)

2026-10-16 19:16:21 +02:00