diff --git a/o1heap.cpp b/o1heap.cpp
index 043d3b0..715910d 100644
--- a/o1heap.cpp
+++ b/o1heap.cpp
@@ -462,6 +462,28 @@ void o1heapFree(O1HeapInstance *const handle, void *const pointer)
     }
 }
 
+void o1heapTraverseHeap(const O1HeapInstance *const handle, bool(*fCallback)(void *, void *), void *pSecondArg)
+{
+    AU_LOCK_GUARD(handle->mutex);
+
+    Fragment *const frag = (Fragment *)(void *)(((uint8_t *)handle) + INSTANCE_SIZE_PADDED);
+    O1HEAP_ASSERT((((size_t)frag) % O1HEAP_ALIGNMENT) == 0U);
+
+    const Fragment *curFrag = frag;
+
+    do
+    {
+        if (curFrag->header.used)
+        {
+            if (!fCallback(((uint8_t *)curFrag) + O1HEAP_ALIGNMENT, pSecondArg))
+            {
+                break;
+            }
+        }
+    }
+    while (curFrag = curFrag->header.next);
+}
+
 bool o1heapDoInvariantsHold(const O1HeapInstance *const handle)
 {
     O1HEAP_ASSERT(handle != NULL);
diff --git a/o1heap.hpp b/o1heap.hpp
index b6210e2..f8f8aeb 100644
--- a/o1heap.hpp
+++ b/o1heap.hpp
@@ -146,3 +146,6 @@ bool o1heapDoInvariantsHold(const O1HeapInstance *const handle);
 /// If the handle pointer is NULL, the behavior is undefined.
 O1HeapDiagnostics o1heapGetDiagnostics(const O1HeapInstance *const handle);
 
+///
+///
+void o1heapTraverseHeap(const O1HeapInstance *const handle, bool(*fCallback)(void *, void *), void *pSecondArg);
\ No newline at end of file