Resolve -Wtautological-undefined-compare when building with clang Comparing 'this' to 'nullptr' will always evaluate to false. clang and gcc optimize away the check entirely, removing the checks silences the warnings. https://clang.llvm.org/docs/DiagnosticsReference.html#wtautological-undefined-compare

diff --git a/src/D3D12MemAlloc.cpp b/src/D3D12MemAlloc.cpp
index fecc28c..4b85b11 100644
--- a/src/D3D12MemAlloc.cpp
+++ b/src/D3D12MemAlloc.cpp

@@ -9312,11 +9312,6 @@
 

 void Allocation::ReleaseThis()

 {

-    if (this == NULL)

-    {

-        return;

-    }

-

     SAFE_RELEASE(m_Resource);

 

     switch (m_PackedData.GetType())

@@ -9461,11 +9456,6 @@
 

 void DefragmentationContext::ReleaseThis()

 {

-    if (this == NULL)

-    {

-        return;

-    }

-

     D3D12MA_DELETE(m_Pimpl->GetAllocs(), this);

 }

 

@@ -9526,11 +9516,6 @@
 

 void Pool::ReleaseThis()

 {

-    if (this == NULL)

-    {

-        return;

-    }

-

     D3D12MA_DELETE(m_Pimpl->GetAllocator()->GetAllocs(), this);

 }