Issue #21110 has been reported by andrykonchin (Andrew Konchin). ---------------------------------------- Misc #21110: Should Marshal.dump always use object links for repeated Float values? https://bugs.ruby-lang.org/issues/21110 * Author: andrykonchin (Andrew Konchin) * Status: Open ---------------------------------------- I've noticed (during the downstreaming ruby/spec in https://github.com/ruby/ruby/pull/12679) that a repeated Float value may be dumped "directly"/"immediately" without an objct link on x86 architecture, and with a link in other cases. It seems it depends on whether Float is `Flonum` or not. amd64: ```ruby Marshal.dump([0.0, 0.0]) # => "\x04\b[\af\x060@\x06", where @\x06 is an object link ``` i686: ```ruby Marshal.dump([0.0, 0.0]) # => "\x04\b[\af\x060f\x060", so f\x060 is dumped twice ``` Both dumps are loaded correctly, so it seems there is no any compatibility issue. Should dumping be consistent and don't depend on architecture? -- https://bugs.ruby-lang.org/