diff --git a/applications/test/tmp/Test-tmp.C b/applications/test/tmp/Test-tmp.C
index cd9e7083440b01de73c98c96426567e92c1956e2..215459ddaec3fa43be473aa2d00a5d16e9b604eb 100644
--- a/applications/test/tmp/Test-tmp.C
+++ b/applications/test/tmp/Test-tmp.C
@@ -41,7 +41,7 @@ void printInfo(const tmp<T>& item, const bool verbose = false)
         << " movable:" << Switch(item.movable());
     if (item)
     {
-        Info<< " refCount:" << item->count();
+        Info<< " refCount:" << item->use_count();
     }
 
     Info<< " move-constructible:"
diff --git a/src/OpenFOAM/db/IOstreams/token/tokenI.H b/src/OpenFOAM/db/IOstreams/token/tokenI.H
index fe1a535565797ff2dd9819dfa86476a66951d465..ccea31ef4ff989370c02419f97f4efb3fdae9b57 100644
--- a/src/OpenFOAM/db/IOstreams/token/tokenI.H
+++ b/src/OpenFOAM/db/IOstreams/token/tokenI.H
@@ -276,7 +276,7 @@ inline void Foam::token::reset()
 
         case tokenType::COMPOUND:
         {
-            if (data_.compoundPtr->unique())
+            if (data_.compoundPtr->refCount::unique())
             {
                 delete data_.compoundPtr;
             }
diff --git a/src/OpenFOAM/memory/refCount/refCount.H b/src/OpenFOAM/memory/refCount/refCount.H
index 58ef0d0aa8833d3c973f8b086bab642cb174964a..5df795b3e9db5a66e452fc174cf58996e5843533 100644
--- a/src/OpenFOAM/memory/refCount/refCount.H
+++ b/src/OpenFOAM/memory/refCount/refCount.H
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2018 OpenCFD Ltd.
+    Copyright (C) 2018-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -72,7 +72,7 @@ public:
     // Member Functions
 
         //- Return the current reference count
-        int count() const noexcept
+        int use_count() const noexcept
         {
             return count_;
         }
diff --git a/src/OpenFOAM/memory/tmp/tmpI.H b/src/OpenFOAM/memory/tmp/tmpI.H
index e753f5090cbe1cdecbc453373933df36776086b6..191b44a67f731188ed50121dbc6e709c30cbb365 100644
--- a/src/OpenFOAM/memory/tmp/tmpI.H
+++ b/src/OpenFOAM/memory/tmp/tmpI.H
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2017 OpenFOAM Foundation
-    Copyright (C) 2018-2022 OpenCFD Ltd.
+    Copyright (C) 2018-2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -34,9 +34,9 @@ License
 template<class T>
 inline void Foam::tmp<T>::incrCount()
 {
-    ptr_->operator++();
+    ptr_->refCount::operator++();
 
-    if (ptr_->count() > 1)
+    if (ptr_->refCount::use_count() > 1)
     {
         FatalErrorInFunction
             << "Attempt to create more than 2 tmp's referring to the same"
@@ -79,7 +79,7 @@ inline Foam::tmp<T>::tmp(T* p)
     ptr_(p),
     type_(PTR)
 {
-    if (ptr_ && !ptr_->unique())
+    if (ptr_ && !ptr_->refCount::unique())
     {
         FatalErrorInFunction
             << "Attempted construction of a "
@@ -195,7 +195,7 @@ inline Foam::tmp<T>::~tmp() noexcept
 template<class T>
 inline bool Foam::tmp<T>::movable() const noexcept
 {
-    return (is_pointer() && ptr_ && ptr_->unique());
+    return (is_pointer() && ptr_ && ptr_->refCount::unique());
 }
 
 
@@ -246,7 +246,7 @@ inline T* Foam::tmp<T>::ptr() const
 
     if (is_pointer())
     {
-        if (!ptr_->unique())
+        if (!ptr_->refCount::unique())
         {
             FatalErrorInFunction
                 << "Attempt to acquire pointer to object referred to"
@@ -271,13 +271,13 @@ inline void Foam::tmp<T>::clear() const noexcept
 {
     if (is_pointer() && ptr_)
     {
-        if (ptr_->unique())
+        if (ptr_->refCount::unique())
         {
             delete ptr_;
         }
         else
         {
-            ptr_->operator--();
+            ptr_->refCount::operator--();
         }
         ptr_ = nullptr;
     }
@@ -479,7 +479,7 @@ inline void Foam::tmp<T>::operator=(T* p)
             << this->typeName()
             << abort(FatalError);
     }
-    else if (!p->unique())
+    else if (!p->refCount::unique())
     {
         FatalErrorInFunction
             << "Attempted assignment of a "