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- /*
- * SPDX-FileCopyrightText: 2015-2022 The Apache Software Foundation (ASF)
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * SPDX-FileContributor: 2019-2022 Espressif Systems (Shanghai) CO LTD
- */
- /*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 H_OS_UTIL_
- #define H_OS_UTIL_
- /* Helpers to pass integers as pointers and vice-versa */
- #define POINTER_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
- #define UINT_TO_POINTER(u) ((void *) ((uintptr_t) (u)))
- #define POINTER_TO_INT(p) ((int) ((intptr_t) (p)))
- #define INT_TO_POINTER(u) ((void *) ((intptr_t) (u)))
- /* Helper to retrieve pointer to "parent" object in structure */
- #define CONTAINER_OF(ptr, type, field) \
- ((type *)(((char *)(ptr)) - offsetof(type, field)))
- /* Helper to calculate number of elements in array */
- #ifndef ARRAY_SIZE
- #define ARRAY_SIZE(array) \
- (sizeof(array) / sizeof((array)[0]))
- #endif
- #endif
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