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microoptimization on rand(::AliasTable) #1831

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Merged
merged 2 commits into from
Feb 5, 2024
Merged

microoptimization on rand(::AliasTable) #1831

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af22151
microoptimization on rand(::AliasTable)
adienes Jan 26, 2024
7d8d6d9
Update src/samplers/aliastable.jl
adienes Feb 5, 2024
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4 changes: 1 addition & 3 deletions src/samplers/aliastable.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -15,9 +15,7 @@ end

function rand(rng::AbstractRNG, s::AliasTable)
i = rand(rng, 1:length(s.alias)) % Int
u = rand(rng)
@inbounds r = u < s.accept[i] ? i : s.alias[i]
r
ifelse(rand(rng) < s.accept[i], i, s.alias[i])
end

show(io::IO, s::AliasTable) = @printf(io, "AliasTable with %d entries", ncategories(s))