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2352. Is a default-constructed std::seed_seq intended to produce a predictable .generate()?

Section: 28.5.8.1 [rand.util.seedseq] Status: NAD Submitter: Thomas Plum Opened: 2013-12-02 Last modified: 2022-08-24

Priority: 2

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Discussion:

With respect to class seed_seq 28.5.8.1 [rand.util.seedseq], is a default-constructed std::seed_seq intended to produce a predictable .generate() sequence?

Implementations differ.

[2014-02-10]

Priority set to 2

[2022-08-24 Status changed: New → NAD.]

Discussed in LWG telecon. The default constructor effects are clear. Implementations agree.

Proposed resolution: