chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
7394 changed files with 2005594 additions and 0 deletions
@@ -0,0 +1,62 @@
+/* ******************************************************************************
+ *
+ *
+ * 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 <system/op_boilerplate.h>
+#if NOT_EXCLUDED(OP_knn_mindistance)
+
+#include <ops/declarable/CustomOperations.h>
+#include <ops/declarable/helpers/knn.h>
+
+namespace sd {
+namespace ops {
+CUSTOM_OP_IMPL(knn_mindistance, 3, 1, false, 0, 0) {
+  auto input = INPUT_VARIABLE(0);
+  auto lowest = INPUT_VARIABLE(1);
+  auto highest = INPUT_VARIABLE(2);
+
+  auto output = OUTPUT_VARIABLE(0);
+
+  REQUIRE_TRUE(input->lengthOf() == lowest->lengthOf() && input->lengthOf() == highest->lengthOf(), 0,
+               "knn_mindistance: all input arrays must have same length");
+  REQUIRE_TRUE(input->dataType() == lowest->dataType() && input->dataType() == highest->dataType() &&
+                   input->dataType() == output->dataType(),
+               0, "knn_mindistance: all inputs must have the same data type");
+
+  helpers::knn_mindistance(*input, *lowest, *highest, *output);
+
+  return Status::OK;
+}
+
+DECLARE_SHAPE_FN(knn_mindistance) {
+  auto input = inputShape->at(0);
+
+  // always return scalar here
+  return SHAPELIST(ConstantShapeHelper::getInstance().scalarShapeInfo(ArrayOptions::dataType(input)));
+}
+
+DECLARE_TYPES(knn_mindistance) {
+  getOpDescriptor()->setAllowedInputTypes({ALL_FLOATS})->setAllowedOutputTypes({ALL_FLOATS});
+}
+}  // namespace ops
+}  // namespace sd
+
+#endif