Merge pull request #1453 from franzpoeschel/fix-attribute-indexing

Fix the creation of fresh attribute indices in DefineAttribute
ornladios · May 28, 2019 · d4238ee · d4238ee
2 parents 421f29d + 0039a98
commit d4238ee
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/source/adios2/core/IO.tcc b/source/adios2/core/IO.tcc
@@ -161,12 +161,13 @@ Attribute<T> &IO::DefineAttribute(const std::string &name, const T *array,
     }
 
     auto &attributeMap = GetAttributeMap<T>();
-    const unsigned int size = static_cast<unsigned int>(attributeMap.size());
+    const unsigned int newIndex =
+        attributeMap.empty() ? 0 : attributeMap.rbegin()->first + 1;
 
-    auto itAttributePair =
-        attributeMap.emplace(size, Attribute<T>(globalName, array, elements));
+    auto itAttributePair = attributeMap.emplace(
+        newIndex, Attribute<T>(globalName, array, elements));
     m_Attributes.emplace(globalName,
-                         std::make_pair(helper::GetType<T>(), size));
+                         std::make_pair(helper::GetType<T>(), newIndex));
 
     return itAttributePair.first->second;
 }