I have a pre-allocated BitVector that fills randomly inside a loop. Based on that BitVector, I want to create a view of a Matrix but it allocates. Is there a workaround? A simple example: using Chairmarks ix = BitVector(zeros(10)) # values change x = rand(10, 10) # stays fixed ix .= bitrand(10) @…

See: [image] Shouldn't `@views sum(data[mask])` be non-allocating? General Usage I was surprised to see the following function allocates - is this expected? using BenchmarkTools function f_viewalloc(data, mask) @views sum(data[mask]) end let N = 1_000_000 data …

Matrix view based on BitVector?

General Usage Performance

mbauman March 13, 2025, 3:15pm 2

See:

Topic		Replies	Views
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Iterator for indexes of true values in BitVector without allocations General Usage	5	262	June 15, 2023
Shouldn't `@views sum(data[mask])` be non-allocating? General Usage memory-allocation	19	608	August 14, 2024
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Matrix view based on BitVector?

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