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20 lines
342 B
Julia
20 lines
342 B
Julia
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mutable struct PreVector{T}
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last_ind::UInt64
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v::Vector{T}
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PreVector(T, N) = new{T}(UInt64(0), Vector{T}(undef, N))
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end
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function push!(pv::PreVector{T}, x::T) where {T}
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pv.last_ind += 1
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pv.v[pv.last_ind] = x
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return nothing
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end
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function reset!(pv::PreVector{T}) where {T}
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pv.last_ind = 0
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return nothing
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end
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