1 files changed, 59 insertions, 0 deletions
diff --git a/intern/cycles/util/vector.h b/intern/cycles/util/vector.h
new file mode 100644
index 00000000000..db35f198dc1
--- /dev/null
+++ b/intern/cycles/util/vector.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __UTIL_VECTOR_H__
+#define __UTIL_VECTOR_H__
+
+#include <cassert>
+#include <cstring>
+#include <vector>
+
+#include "util/aligned_malloc.h"
+#include "util/guarded_allocator.h"
+#include "util/types.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Own subclass-ed version of std::vector. Subclass is needed because:
+ *
+ * - Use own allocator which keeps track of used/peak memory.
+ * - Have method to ensure capacity is re-set to 0.
+ */
+template<typename value_type, typename allocator_type = GuardedAllocator<value_type>>
+class vector : public std::vector<value_type, allocator_type> {
+ public:
+  typedef std::vector<value_type, allocator_type> BaseClass;
+
+  /* Inherit all constructors from base class. */
+  using BaseClass::vector;
+
+  /* Try as hard as possible to use zero memory. */
+  void free_memory()
+  {
+    vector<value_type, allocator_type> empty;
+    BaseClass::swap(empty);
+  }
+
+  /* Some external API might demand working with std::vector. */
+  operator std::vector<value_type>()
+  {
+    return std::vector<value_type>(this->begin(), this->end());
+  }
+};
+
+CCL_NAMESPACE_END
+
+#endif /* __UTIL_VECTOR_H__ */