chore: import upstream snapshot with attribution

paddle/phi/capi/include/c_int_array.h

@@ -0,0 +1,34 @@
+// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+//
+// 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.
+
+#pragma once
+
+#if !defined(_WIN32)
+
+#include "paddle/phi/capi/include/c_data_type.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct PD_IntArray PD_IntArray;
+
+PD_List PD_IntArrayGetDataPointer(PD_IntArray *int_array);
+
+size_t PD_IntArrayGetElementCount(PD_IntArray *int_array);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+#endif