json/include/nlohmann/detail at 13019f7fe5b5723e9205ed960e8b85d23234fe93 - json

mirror of https://github.com/nlohmann/json.git synced 2026-08-20 16:13:19 +00:00

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Niels Lohmann 13019f7fe5 Skip token_buffer for integers on the contiguous path

An integer token does not need token_buffer: the number_integer and
number_unsigned SAX callbacks take only the value, and the overflow
diagnostic rebuilds the text from the input via get_token_string(). Convert
straight from the input buffer and materialize the token only for the
floating-point tail, which still needs a NUL-terminated buffer for strtod.

JSON_DIAGNOSTIC_POSITIONS derives a number's start position from
get_string().size(), so the copy is kept when that is enabled.

The integer dispatch is factored into convert_integer() and shared with
convert_number(), so both scanners keep using one implementation.

Integer-heavy input, 400k values, -O3:

              parse    accept
  gcc 16      +14%     +23%
  clang       +15%     +22%

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

2026-08-19 23:16:03 +02:00

conversions

Custom BinaryType direct assignment (#5266 )

2026-07-11 15:09:05 +02:00

input

Skip token_buffer for integers on the contiguous path

2026-08-19 23:16:03 +02:00

iterators

docs: add IDs to @requirement tags to fix Doxygen autolinking (#5162 )

2026-05-10 11:37:41 +02:00