From 44e9f3a9abad4e650411299b6811dd7aa02707f2 Mon Sep 17 00:00:00 2001
From: Michael Abbott <32575566+mcabbott@users.noreply.github.com>
Date: Tue, 26 Nov 2024 11:49:56 -0500
Subject: [PATCH] add SentinelArrays to readme

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index b25c394..d72d52b 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,8 @@ Eager:
 
 * [FlexiMaps.flatten](https://gitlab.com/aplavin/FlexiMaps.jl#flatmapflatten) is another eager implementation.
 * [CatViews.jl](https://github.com/ahwillia/CatViews.jl) offers a lazy `vcat`. But the package is old and I think not so fast.
+* [SentinelArrays.jl](https://github.com/JuliaData/SentinelArrays.jl) has a type [`ChainedVector`](https://github.com/JuliaData/SentinelArrays.jl/blob/main/src/chainedvector.jl) which is a lazy `reduce(vcat, vector_of_vectors)`
+
 
 ### Experiments: `concatenate` & `flatten`