Add sections on 64-bit inline float rotation encoding and 32-bit
RFloat heap allocation with char[] buffer for alignment safety.
Add comparison table of all three boxing modes and ABI note.
Co-authored-by: Claude <noreply@anthropic.com>
The old name referred to "truncation" of float precision, which no
longer happens with rotation encoding. The new name describes the
actual behavior: disabling inline float encoding in word boxing.
The old name is kept as an obsolete alias for backward compatibility.
Co-authored-by: Claude <noreply@anthropic.com>
The documentation table is generated by the `rake doc:update-index` command.
The following conditions must be met for links to be added to the documentation table.
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Yukihiro "Matz" Matsumoto