Comments (3)
vtjnash
commented on September 24, 2024
1
Yes, that is true of isassigned usages in general. I just wanted to also note that the usage in the OP is not valid, so that someone does not try to make a test from it, as it may lead to some data corruption, etc, due to also being wrong to specify there.
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vtjnash
commented on September 24, 2024
It seems correct there though (or equivalently, it is incorrect to specify removing bounds), as you are indexing src with the bounds of dst, which is indeed unsound if it removed boundschecking
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mbauman
commented on September 24, 2024
It's surely just a method in need of bounds check propagation:
julia/base/multidimensional.jl
Lines 1568 to 1571 in 81c6526
That's why it's only appearing for a "slow" array — eachindex gives you CartesianIndexes, which then hit that intermediate function.
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