Public domain implementation: allowable licenses

[SilviaIenciu]

Hello @aappleby ,
Thank you for all your help with the code.
I have one question though, about the Public domain implementation: MurmurHash3 that is placed in Public Domain, could it be also used under CC0 1.0 Universal, which is the correspondent license for Public domain?

[aappleby]

Sure, use however you like.

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On Mon, Jun 28, 2021, 2:16 AM Silvia Ienciu ***@***.***> wrote: Hello @aappleby <https://github.com/aappleby> , Thank you for all your help with the code. I have one question though, about the Public domain implementation: MurmurHash3 that is placed in Public Domain, could it be also used under CC0 1.0 Universal, which is the correspondent license for Public domain? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#92>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAF6BH3T6SRE2EXQ2OEOP6LTVA4V5ANCNFSM47NRTNAQ> .

[wpkpit]

Hello @aappleby ,
jemalloc project(https://github.com/jemalloc/jemalloc) I understand is a BSD-2 compatible license. It includes the hash functions in https://github.com/jemalloc/jemalloc/blob/a4e81221cceeb887708d53015d3d1f1f9642980a/include/jemalloc/internal/hash.h#L6 which is originally from this(smhasher) project.
My question is whether it is possible to use your source code, that is marked as Public Domain, under the BSD-2 license?

[sebres]

whether it is possible to use your source code, that is marked as Public Domain, under the BSD-2 license?

Basically the work under public domain is compatible with any (open or even closed source) licenses, and can be integrated into any other software, let alone if they are under GPL-compatible licenses like MIT or 2-clause BSD License.

Also see https://www.toptal.com/open-source/developers-guide-to-open-source-licenses#public-domain-cc0

[wpkpit]

whether it is possible to use your source code, that is marked as Public Domain, under the BSD-2 license?

Basically the work under public domain is compatible with any (open or even closed source) licenses, and can be integrated into any other software, let alone if they are under GPL-compatible licenses like MIT or 2-clause BSD License.

Thank you very much @sebres for the feedback. My understanding is that "Public Domain" does not mean a license. That's why it is important to understand the author's(@aappleby) point of view about whether he permits licensed usage within the BSD-2 license scope of jemalloc project.

some background info could be found at #26 (comment)

Also see https://www.toptal.com/open-source/developers-guide-to-open-source-licenses#public-domain-cc0

[aappleby]

Anyone can use SMHasher and MurmurHash for any purpose, commercial or not.

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On Wed, Feb 2, 2022 at 7:30 AM wpkpit ***@***.***> wrote: Thank you very much @sebres <https://github.com/sebres> for the feedback. My understanding is that "Public Domain" does not mean a license. That's why it is important to understand the ***@***.*** <https://github.com/aappleby>) point of view about whether he permits licensed usage within the BSD-2 license scope of jemalloc project. whether it is possible to use your source code, that is marked as Public Domain, under the BSD-2 license? Basically the work under public domain is compatible with any (open or even closed source) licenses, and can be integrated into any other software, let alone if they are under GPL-compatible licenses like MIT or 2-clause BSD License. Also see https://www.toptal.com/open-source/developers-guide-to-open-source-licenses#public-domain-cc0 — Reply to this email directly, view it on GitHub <#92 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAF6BH7SVDBAC5BKJLNVAPLUZFEYFANCNFSM47NRTNAQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[wpkpit]

Anyone can use SMHasher and MurmurHash for any purpose, commercial or not.

Thank you @aappleby for your clarification.