Particular data sequence causes inconsistency & panic in llrb #15
Description
I encountered a crash in a data processing app that makes use of GoLLRB.
panic: runtime error: invalid memory address or nil pointer dereference
at llrb/llrb.go:423 (moveRedLeft)
I found a particular sequence of data that causes the tree to become inconsistent and crash. I've attached a simple test program that reproduces the error.
Download the code file llrbcrash.go and run with:
go get github.com/petar/GoLLRB
go run llrbcrash.go