From 3f9fac65a40fff923a42ce196cee260de585aac0 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Sat, 6 Dec 2025 14:16:34 -0500
Subject: [PATCH] xo-object: spaceship operator for gp<T> + gp<String>

---
 include/xo/allocutil/gc_ptr.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/xo/allocutil/gc_ptr.hpp b/include/xo/allocutil/gc_ptr.hpp
index bb4225a..a7d0974 100644
--- a/include/xo/allocutil/gc_ptr.hpp
+++ b/include/xo/allocutil/gc_ptr.hpp
@@ -69,6 +69,18 @@ namespace xo {
         T * operator->() const { return ptr_; }
         T & operator*() const { return *ptr_; }
 
+        auto operator<=>(gc_ptr<T> other) const
+        requires std::three_way_comparable<T>
+        {
+            return *ptr_ <=> *other.ptr_;
+        }
+
+        bool operator==(gc_ptr<T> other) const
+        requires std::equality_comparable<T>
+        {
+            return *ptr_ == *other.ptr_;
+        }
+
     private:
         T * ptr_ = nullptr;
     };