add imag for sparsematrix

JuliaLang · May 27, 2017 · fe64bdc · fe64bdc
1 parent 52e04a5
commit fe64bdc
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/base/sparse/sparsematrix.jl b/base/sparse/sparsematrix.jl
@@ -1447,6 +1447,8 @@ sparse(S::UniformScaling, m::Integer, n::Integer=m) = speye_scaled(S.λ, m, n)
 conj!(A::SparseMatrixCSC) = (@inbounds broadcast!(conj, A.nzval, A.nzval); A)
 (-)(A::SparseMatrixCSC) = SparseMatrixCSC(A.m, A.n, copy(A.colptr), copy(A.rowval), map(-, A.nzval))
 
+# the rest of real, conj, imag are handled correctly via AbstractArray methods
+imag(A::SparseMatrixCSC{Tv,Ti}) where {Tv<:Number,Ti} = spzeros(Tv, Ti, A.m, A.n)
 
 ## Binary arithmetic and boolean operators
 (+)(A::SparseMatrixCSC, B::SparseMatrixCSC) = map(+, A, B)