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reduce occurences of tag errors #389

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Merged
merged 3 commits into from
Feb 19, 2019
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simonbyrne
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Nested differentiation can fail in cases where there are no operations involving the inner gradient, e.g.

ForwardDiff.derivative(1.0) do x
    ForwardDiff.derivative(x) do y
        x
    end
end

I'm pretty sure this is safe...

@jrevels
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jrevels commented Feb 16, 2019

These seem sensible to me.

Rebase against master to get the Kristoffer's shiny new appveyor file?

Coverage increased (+17.07%) to 88.084%

lol Coveralls.

@simonbyrne
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Are the appveyor failures expected?

@simonbyrne
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bump: any ideas what is going on here?

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jrevels commented Feb 19, 2019

Windows tests have been kind of broken for awhile; the tests seem more sensitive to the finite differencing error. Would be worth figuring out at some point but it's unrelated to this PR.

@jrevels jrevels merged commit 958711d into JuliaDiff:master Feb 19, 2019
@simonbyrne
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can you tag a new release?

@simonbyrne simonbyrne deleted the less-confusion branch February 20, 2019 20:04
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2 participants