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improve type inference in DCTPlan #259

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Mar 1, 2023
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improve type inference in DCTPlan #259

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11 changes: 6 additions & 5 deletions src/dct.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -80,13 +80,14 @@ function idct! end
# Unlike Matlab we compute the multidimensional transform by default,
# similar to the Julia fft functions.

mutable struct DCTPlan{T<:fftwNumber,K,inplace} <: Plan{T}
plan::r2rFFTWPlan{T}
r::Array{UnitRange{Int}} # array of indices for rescaling
mutable struct DCTPlan{T<:fftwNumber,K,inplace,G,R<:r2rFFTWPlan{T}} <: Plan{T}
plan::R
r::Vector{UnitRange{Int}} # array of indices for rescaling
nrm::Float64 # normalization factor
region::Dims # dimensions being transformed
region::G # dimensions being transformed
pinv::DCTPlan{T}
DCTPlan{T,K,inplace}(plan,r,nrm,region) where {T<:fftwNumber,K,inplace} = new(plan,r,nrm,region)
DCTPlan{T,K,inplace}(plan::R,r,nrm,region::G) where {T<:fftwNumber,K,inplace,G,R<:r2rFFTWPlan{T}} =
new{T,K,inplace,G,R}(plan,r,nrm,region)
end

size(p::DCTPlan) = size(p.plan)
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