From 132495d45f63149771e6ed49c037f0d3421bf75b Mon Sep 17 00:00:00 2001
From: Stuart <stuartthomas25@gmail.com>
Date: Tue, 19 Mar 2024 14:40:24 -0400
Subject: [PATCH] allow vcat on single ChainedVector

Formerly, `vcat(a::ChainedVector)` would fail with an error.
---
 src/chainedvector.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/chainedvector.jl b/src/chainedvector.jl
index c85f4b5..9a404d7 100644
--- a/src/chainedvector.jl
+++ b/src/chainedvector.jl
@@ -629,6 +629,8 @@ Base.@propagate_inbounds function Base.insert!(A::ChainedVector{T, AT}, i::Integ
     return A
 end
 
+Base.vcat(A::ChainedVector{T, AT}) where {T, AT <: AbstractVector{T}} = A
+
 function Base.vcat(A::ChainedVector{T, AT}, arrays::ChainedVector{T, AT}...) where {T, AT <: AbstractVector{T}}
     newarrays = vcat(A.arrays, map(x->x.arrays, arrays)...)
     n = length(A.inds)