diff -r 61d5197d612b -r 4523f6d42512 src/cx/compare.h
--- a/src/cx/compare.h	Mon Dec 18 15:13:26 2023 +0100
+++ b/src/cx/compare.h	Mon Dec 18 16:04:21 2023 +0100
@@ -212,6 +212,19 @@
         void const *ptr2
 );
 
+/**
+ * Compares the pointers specified in the arguments without de-referencing.
+ *
+ * @param ptr1 pointer one
+ * @param ptr2 pointer two
+ * @return -1 if ptr1 is less than ptr2, 0 if both are equal,
+ * 1 if ptr1 is greater than ptr2
+ */
+int cx_cmp_ptr(
+        void const *ptr1,
+        void const *ptr2
+);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif