Niels Lohmann 0eabcc51eb JSON_DIAGNOSTIC_POSITIONS: comparing a value-initialized iterator throws instead of crashing ...

With JSON_DIAGNOSTIC_POSITIONS, comparing a value-initialized iterator
(which has no container) with another iterator built the
invalid_iterator.212 message from the byte positions of the iterator's
value, which is a null pointer: UBSan reports "member call on null
pointer" in exception::get_byte_positions(), then the process crashes.
Every other configuration throws invalid_iterator.212.

get_byte_positions() now returns no positions for a null value, as the
JSON_DIAGNOSTICS path already does.

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

2026-11-02 06:58:15 +01:00

..

json_fwd.hpp

json_view: one SIMD macro set with the library (#5921)

2026-10-26 20:13:31 +01:00

json_literals.hpp

Move the user-defined string literals to <nlohmann/json_literals.hpp> and add JSON_NO_AUTOMATIC_UDLS (#5610)

2026-09-30 20:08:17 +02:00

json_view.hpp

json_view: exceptions name the path and the bytes of the value (#5974)

2026-11-01 17:25:26 +01:00

json.hpp

JSON_DIAGNOSTIC_POSITIONS: comparing a value-initialized iterator throws instead of crashing

2026-11-02 06:58:15 +01:00