diff --git a/src/OpenFOAM/containers/Bits/bitSet/bitSet.H b/src/OpenFOAM/containers/Bits/bitSet/bitSet.H
index 076e4e97a6eee7f9e55c7167e049c19038b36dbe..e2502ccf96cd598ff1b70656ca99a706fe4cef86 100644
--- a/src/OpenFOAM/containers/Bits/bitSet/bitSet.H
+++ b/src/OpenFOAM/containers/Bits/bitSet/bitSet.H
@@ -244,6 +244,11 @@ public:
         //  \note Method name compatibility with std::bitset
         inline bool test(const label pos) const;
 
+        //- Test value at specified position, never auto-vivify entries.
+        //
+        //  \note Method name compatibility with HashSet
+        inline bool found(const label pos) const;
+
         //- Locate the first bit that is set.
         //  \return the location or -1 if there are no bits set.
         //
diff --git a/src/OpenFOAM/containers/Bits/bitSet/bitSetI.H b/src/OpenFOAM/containers/Bits/bitSet/bitSetI.H
index c3332a4a2f19a1b7d6a65918ec62cf139461cff5..b52f52d55ab5a7102b3af985aaf55e3018eb94b4 100644
--- a/src/OpenFOAM/containers/Bits/bitSet/bitSetI.H
+++ b/src/OpenFOAM/containers/Bits/bitSet/bitSetI.H
@@ -5,7 +5,7 @@
     \\  /    A nd           | www.openfoam.com
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
-    Copyright (C) 2018-2019 OpenCFD Ltd.
+    Copyright (C) 2018-2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -515,6 +515,12 @@ inline bool Foam::bitSet::test(const label pos) const
 }
 
 
+inline bool Foam::bitSet::found(const label pos) const
+{
+    return get(pos);
+}
+
+
 inline Foam::labelList Foam::bitSet::sortedToc() const
 {
     return toc();