xo-object2: utest: ++ allocation in collector utest

xo-object2/src/object2/DFloat.cpp

@@ -0,0 +1,24 @@
+/** @file DFloat.cpp
+ *
+ *  @author Roland Conybeare, Dec 2025
+ **/
+
+#include "DFloat.hpp"
+
+namespace xo {
+    using xo::facet::typeseq;
+
+    namespace scm {
+        DFloat *
+        DFloat::make(obj<AAllocator> mm,
+                     double x)
+        {
+            void * mem = mm.alloc(typeseq::id<DFloat>(),
+                                  sizeof(DFloat));
+
+            return new (mem) DFloat(x);
+        }
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end DFloat.cpp */