Niels Lohmann 32349b379b Make contains(json_pointer) return false instead of throwing on unrepresentable array-index tokens ...

contains(const json_pointer&) is documented to never throw, but a purely
numeric reference token that is syntactically a valid array index yet
numerically too large to be represented (exceeding size_type's max, or
exceeding ULLONG_MAX and causing strtoull() to set errno to ERANGE) made
it fall through to array_index(), which throws out_of_range.410/404.

Pre-check the token's magnitude the same way array_index() does, but
return false instead of throwing, mirroring how the surrounding code
already rejects other malformed tokens (leading zero, non-digit
characters, "-") without throwing. operator[]/at() are untouched and
keep throwing for these inputs.

Fixes #5395

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

2026-09-05 21:57:41 +02:00

..

nlohmann

Make contains(json_pointer) return false instead of throwing on unrepresentable array-index tokens

2026-09-05 21:57:41 +02:00