Make findindex type stable on julia 1.11

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 = "1.4"
+version = "1.4.1"
 
 [deps]
 AMGCLWrap = "4f76b812-4ba5-496d-b042-d70715554288"

src/matrix/sparsematrixlnk.jl

@@ -117,13 +117,13 @@ function SparseMatrixLNK(csc::SparseArrays.SparseMatrixCSC{Tv, Ti}) where {Tv, T
     lnk
 end
 
-function findindex(lnk::SparseMatrixLNK, i, j)
+function findindex(lnk::SparseMatrixLNK{Tv,Ti}, i, j) where {Tv,Ti}
     if !((1 <= i <= lnk.m) & (1 <= j <= lnk.n))
         throw(BoundsError(lnk, (i, j)))
     end
 
-    k = j
-    k0 = j
+    k::Ti = j
+    k0::Ti = j
     while k > 0
         if lnk.rowval[k] == i
             return k, 0