bump patch version

* tested with VoronoiFVM, Surrogates, GradientRobustMultiPhysics

Author: j-fu

Project.toml

@@ -1,7 +1,7 @@
 name = "ExtendableSparse"
 uuid = "95c220a8-a1cf-11e9-0c77-dbfce5f500b3"
 authors = ["Juergen Fuhrmann <juergen.fuhrmann@wias-berlin.de>"]
-version = "0.4.0"
+version = "0.4.1"
 
 [deps]
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"

src/sparsematrixlnk.jl

@@ -328,7 +328,9 @@ function Base.:+(lnk::SparseMatrixLNK{Tv,Ti},csc::SparseMatrixCSC)::SparseMatrix
 
 
         # jointly sort lnk and csc entries  into new matrix data
-        # this could be replaced in a more transparent manner by joint sorting
+        # this could be replaced in a more transparent manner by joint sorting:
+        # make a joint array for csc and lnk col, sort them.
+        # Will this be faster? 
 
         colptr[j]=inz
         jlnk=one(Ti) # counts the entries in col