diff --git a/include/xo/alloc2/cmpresult.hpp b/include/xo/alloc2/cmpresult.hpp
deleted file mode 100644
index 0a9a911..0000000
--- a/include/xo/alloc2/cmpresult.hpp
+++ /dev/null
@@ -1,87 +0,0 @@
-/** @file cmpresult.hpp
-*
- *  @author Roland Conybeare, Dec 2025
- **/
-
-#pragma once
-
-#include <iostream>
-#include <cstdint>
-
-namespace xo {
-    namespace mm {
-        enum class comparison : int32_t {
-            invalid      = -1,
-            comparable   =  0,
-            incomparable = +1,
-        };
-
-        extern const char * comparison2str(comparison x);
-
-        inline std::ostream &
-        operator<<(std::ostream & os, comparison x) {
-            os << comparison2str(x);
-            return os;
-        }
-
-        /** Result of a generic comparison operation
-         **/
-        struct cmpresult {
-            /** @defgroup mm-cmpresult-ctors cmpresult ctors **/
-            ///@{
-            cmpresult() : err_{comparison::invalid}, cmp_{0} {}
-            cmpresult(comparison err, std::int16_t cmp) : err_{err}, cmp_{cmp} {}
-
-            static cmpresult incomparable() { return cmpresult(comparison::incomparable,  0); }
-            static cmpresult       lesser() { return cmpresult(comparison::comparable,   -1); }
-            static cmpresult        equal() { return cmpresult(comparison::comparable,    0); }
-            static cmpresult      greater() { return cmpresult(comparison::comparable,   +1); }
-            template<typename T>
-            static cmpresult from_cmp(T && x, T && y) {
-                if (x < y)
-                    return cmpresult::lesser();
-                else if (x == y)
-                    return cmpresult::equal();
-                else
-                    return cmpresult::greater();
-            }
-
-            ///@}
-
-            /** @defgroup mm-cmpresult-methods cmpresult methods **/
-            ///@{
-
-            /** print to stream **/
-            void display(std::ostream & os) const;
-
-            bool is_lesser() const {
-                return (err_ == comparison::comparable) && (cmp_ < 0);
-            }
-            bool is_equal() const {
-                return (err_ == comparison::comparable) && (cmp_ == 0);
-            }
-            ///@}
-
-            /** @defgroup mm-cmpresult-instance-vars cmpresult instance vars **/
-            ///@{
-            /** -1 -> invalid (sentinel)
-             *   0 -> comparable
-             *  +1 -> incomparable (e.g. iterators from different arenas)
-             **/
-            comparison   err_ = comparison::invalid;
-            /** <0 -> lesser; 0 -> equal, >0 -> greater **/
-            std::int16_t cmp_ = 0;
-            ///@}
-        };
-
-        inline std::ostream & operator<<(std::ostream & os,
-                                         const cmpresult & x)
-        {
-            x.display(os);
-            return os;
-        }
-
-    } /*namespace mm*/
-} /*namespace xo*/
-
-/* end cmpresult.hpp */
diff --git a/src/alloc2/CMakeLists.txt b/src/alloc2/CMakeLists.txt
index ac1ae65..d6982bb 100644
--- a/src/alloc2/CMakeLists.txt
+++ b/src/alloc2/CMakeLists.txt
@@ -5,7 +5,7 @@ set(SELF_SRCS
 
 #    AllocError.cpp
 #    AllocInfo.cpp
-    cmpresult.cpp
+#    cmpresult.cpp
 
     AAllocator.cpp
 #    ArenaConfig.cpp
diff --git a/src/alloc2/cmpresult.cpp b/src/alloc2/cmpresult.cpp
deleted file mode 100644
index cd7c299..0000000
--- a/src/alloc2/cmpresult.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-/** @file cmpresult.cpp
- *
- *  @author Roland Conybeare, Dec 2025
- **/
-
-#include "cmpresult.hpp"
-#include <xo/indentlog/print/tag.hpp>
-#include <iostream>
-
-namespace xo {
-    namespace mm {
-        const char *
-        comparison2str(comparison x)
-        {
-            switch (x) {
-            case comparison::invalid:
-                break;
-            case comparison::comparable:
-                return "cmp";
-            case comparison::incomparable:
-                return "!cmp";
-            }
-
-            return "?comparison";
-        }
-
-        void
-        cmpresult::display(std::ostream & os) const
-        {
-            os << "<cmpresult "
-               << xtag("err", err_)
-               << xtag("cmp", cmp_)
-               << ">";
-        }
-    } /*namespace mm*/
-} /*namespace xo*/
-
-/* end cmpresult.cpp */