Add read rules for auto_ptr->unique_ptr using ROOT 6.36 features

Author: makortel

DataFormats/TestObjects/src/classes.h

@@ -44,3 +44,23 @@
 
 #include <list>
 #include <algorithm>
+
+// related to SchemaEvolutionTestObjects.h
+#ifndef DataFormats_TestObjects_USE_OLD
+
+// The following is from an example by Jakob Blomer from the ROOT team
+namespace edmtest::compat {
+  template <typename T>
+  struct deprecated_auto_ptr {
+    // We use compat_auto_ptr only to assign the wrapped raw pointer
+    // to a unique pointer in an I/O customization rule.
+    // Therefore, we don't delete on destruction (because ownership
+    // gets transferred to the unique pointer).
+
+    // ~deprecated_auto_ptr() { delete _M_ptr; }
+
+    T *_M_ptr = nullptr;
+  };
+}  // namespace edmtest::compat
+
+#endif

DataFormats/TestObjects/src/classes_def.xml

@@ -411,10 +411,17 @@ exception when running testMissingDictionaryChecking_cfg.py.
   <version ClassVersion="3" checksum="1545257825"/>
  </class>
  <class name="std::auto_ptr<edmtest::SchemaEvolutionContained>"/>
+ <class name="edmtest::compat::deprecated_auto_ptr<edmtest::SchemaEvolutionContained>"/>
  <class name="edmtest::SchemaEvolutionAutoPtrToUniquePtr" ClassVersion="4">
   <version ClassVersion="4" checksum="2908944573"/>
   <version ClassVersion="3" checksum="1427898213"/>
  </class>
+ <ioread sourceClass="std::auto_ptr<edmtest::SchemaEvolutionContained>" targetClass="edmtest::compat::deprecated_auto_ptr<edmtest::SchemaEvolutionContained>"/>
+ <ioread sourceClass="edmtest::SchemaEvolutionAutoPtrToUniquePtr" version="[3]" targetClass="edmtest::SchemaEvolutionAutoPtrToUniquePtr" source="edmtest::compat::deprecated_auto_ptr<edmtest::SchemaEvolutionContained> contained_" target="contained_">
+  <![CDATA[
+   contained_.release(); contained_.reset(onfile.contained_._M_ptr);
+  ]]>
+ </ioread>
  <class name="edmtest::SchemaEvolutionCArrayToStdArray" ClassVersion="4">
   <version ClassVersion="4" checksum="66373354"/>
   <version ClassVersion="3" checksum="2848265407"/>