LinearAlgebra/addmul/mul!(::Matrix{Int32}, ::LinearAlgebra.Diagonal{Int32, V} where V<:AbstractVector{Int32}, ::LinearAlgebra.LowerTriangular{Int32, S} where S<:AbstractMatrix{Int32}, α, β)/α = 10, β = false/adjoint and transpose/fa = transpose, fb = transpose @test returned_mat === Ccopy