LinearAlgebra/addmul/mul!(::Matrix{ComplexF64}, ::LinearAlgebra.Symmetric{Float64, S} where S<:(AbstractMatrix{<:Float64}), ::LinearAlgebra.Diagonal{Int32, V} where V<:AbstractVector{Int32}, α, β)/α = 1.0 + 0.0im, β = 0.0 + 0.0im @test returned_mat === Ccopy