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Make the user-facing random Generators reproducible

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Thanks to the new distributions, this is almost trivial change.
This commit is contained in:
Martin Hořeňovský
2023-12-10 16:24:46 +01:00
parent 28c66fdc5a
commit ae4fe16b81
4 changed files with 85 additions and 17 deletions
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11
docs/faq.md
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@@ -84,9 +84,14 @@ and it is also generally repeatable across versions, but we might break
it from time to time. E.g. we broke repeatability with previous versions
in v2.13.4 so that test cases with similar names are shuffled better.
Random generators currently rely on platform's stdlib, specifically
the distributions from `<random>`. We thus provide no extra guarantee
above what your platform does. **Important: `<random>`'s distributions
Since Catch2 vX.Y.Z the random generators use custom distributions,
that should be repeatable across different platforms, with few caveats.
For details see the section on random generators in the [Generator
documentation](generators.md#random-number-generators-details).
Before this version, random generators relied on distributions from
platform's stdlib. We thus can provide no extra guarantee on top of the
ones given by your platform. **Important: `<random>`'s distributions
are not specified to be repeatable across different platforms.**