Fix retrieve_track! including the input ring

Author: Liozou

Project.toml

@@ -1,7 +1,7 @@
 name = "PeriodicGraphs"
 uuid = "18c5b727-b240-4874-878a-f2e242435bab"
 authors = ["Lionel Zoubritzky [email protected]"]
-version = "0.10.0"
+version = "0.10.1"
 
 [deps]
 Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"

src/algorithms/rings.jl

@@ -1325,7 +1325,6 @@ function retrieve_track!(ret::Vector{Int32}, buffer::Vector{Int32}, gauss::Itera
     track = sort!(first(gauss.track))
     tracks = last(gauss.track)
     empty!(ret)
-    push!(ret, length(gauss.rings))
     while !isempty(track)
         x = pop!(track)
         push!(ret, x)

test/runtests.jl

@@ -799,13 +799,13 @@ end
     notindependent, info = PeriodicGraphs.gaussian_elimination(gausstrack, [1, 4, 5, 7])
     @test notindependent
     @test PeriodicGraphs.gaussian_elimination!(gausstrack, [1, 4, 5, 7], notindependent, info)
-    @test PeriodicGraphs.retrieve_track!(gausstrack) == Int32[5, 4, 1]
+    @test PeriodicGraphs.retrieve_track!(gausstrack) == Int32[4, 1]
     @test !PeriodicGraphs.gaussian_elimination!(gausstrack, [3, 5, 6, 7])
     @test !PeriodicGraphs.gaussian_elimination!(gausstrack, [2, 3])
     @test !first(PeriodicGraphs.gaussian_elimination(gausstrack, [1, 2, 3]))
     @test !PeriodicGraphs.gaussian_elimination!(gausstrack, [1, 2, 3])
     @test PeriodicGraphs.gaussian_elimination!(gausstrack, [1, 2, 3])
-    @test PeriodicGraphs.retrieve_track!(gausstrack) == Int32[9, 8]
+    @test PeriodicGraphs.retrieve_track!(gausstrack) == Int32[8]
     @test gausstrack.shortcuts == Int32[4, 7, 1, 2, 6, 3, 8]
     @test length(gausstrack.rings) == 9