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json/docs/mkdocs
Niels Lohmann aaf63cbff6 docs: state that NaN ordering inside containers depends on the standard
When the element-wise comparison of arrays or objects reaches a NaN and
a number (or another NaN) before any other difference, the result
depends on the language standard. Before C++20 the pair counts as
equivalent and the following elements (or the sizes) decide, so
[1] <= [NaN] is true. Since C++20 the comparison is unordered and
<, <=, >, >= all yield false. Document this on operator<, <=, >, >=
and <=>.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-11-11 19:22:54 +01:00
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