From 2d0091602b658e07f77d01403571c55643a1299c Mon Sep 17 00:00:00 2001
From: Lee McLaughlin <lee@icmobilelab.com>
Date: Tue, 25 May 2021 15:53:49 +0100
Subject: [PATCH] Fixes 4647 edge case resulting in OOB

Fix 4647 bug when no matching paritiningIndex found (occurs when clicking to right of last plotted point)
---
 Source/Charts/Data/Implementations/Standard/ChartDataSet.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/Charts/Data/Implementations/Standard/ChartDataSet.swift b/Source/Charts/Data/Implementations/Standard/ChartDataSet.swift
index e9a3a9b0b3..8b006e3cf7 100644
--- a/Source/Charts/Data/Implementations/Standard/ChartDataSet.swift
+++ b/Source/Charts/Data/Implementations/Standard/ChartDataSet.swift
@@ -199,7 +199,7 @@ open class ChartDataSet: ChartBaseDataSet
         let match: (ChartDataEntry) -> Bool = { $0.x >= xValue }
         let i = partitioningIndex(where: match)
 
-        guard self[i].x == xValue else { return [] }
+        guard i < endIndex && self[i].x == xValue else { return [] }
         return self[i...].prefix(while: { $0.x == xValue })
     }