zpp_pool: ZPP_MarchPair
p1: ZPP_GeomVert
key1: Int
okey1: Int
p2: ZPP_GeomVert
key2: Int
okey2: Int
pr: ZPP_GeomVert
keyr: Int
okeyr: Int
pd: ZPP_GeomVert
span1: ZPP_MarchSpan
span2: ZPP_MarchSpan
spanr: ZPP_MarchSpan
next: ZPP_MarchPair
free(): Void
alloc(): Void
new(): Void