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Niels Lohmann
460d83c497
The value-stability assertion added to fix the earlier OSS-Fuzz crash (json::from_bjdata(to_bjdata(j2)) == j2) itself broke on a NaN payload: IEEE 754 NaN is never equal to itself, so operator== reports two structurally-identical trees containing a non-finite double as different -- not a round-trip bug, just NaN's ordinary non-reflexivity. dump() serializes any non-finite double the same deterministic way (as JSON null, since JSON cannot represent NaN or Infinity), so comparing dumps is stable under exactly the values that break operator==. Verified against both the original OSS-Fuzz crash input and the new one (0x68 0x68 0x7c, which decodes to a NaN), plus a local 2.5M-case random-input sweep with no failures. Signed-off-by: Niels Lohmann <mail@nlohmann.me>