chore: import upstream snapshot with attribution

libnd4j/include/helpers/impl/ArrayUtils.cpp

@@ -0,0 +1,53 @@
+/* ******************************************************************************
+ *
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ *  See the NOTICE file distributed with this work for additional
+ *  information regarding copyright ownership.
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+//
+// @author raver119@gmail.com
+//
+#include <helpers/ArrayUtils.h>
+
+namespace sd {
+namespace ArrayUtils {
+void toIntPtr(std::initializer_list<int> list, int* target) {
+  std::vector<int> vec(list);
+  toIntPtr(vec, target);
+}
+
+void toIntPtr(std::vector<int>& list, int* target) { memcpy(target, list.data(), list.size() * sizeof(int)); }
+
+void toLongPtr(std::initializer_list<LongType> list, LongType* target) {
+  std::vector<LongType> vec(list);
+  toLongPtr(vec, target);
+}
+
+void toLongPtr(std::vector<LongType>& list, LongType* target) {
+  memcpy(target, list.data(), list.size() * sizeof(LongType));
+}
+
+std::vector<LongType> toLongVector(std::vector<int> vec) {
+  std::vector<LongType> result(vec.size());
+  LongType vecSize = vec.size();
+
+  for (LongType e = 0; e < vecSize; e++) result[e] = vec[e];
+
+  return result;
+}
+
+std::vector<LongType> toLongVector(std::vector<LongType> vec) { return vec; }
+}  // namespace ArrayUtils
+}  // namespace sd