mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
|
|
* 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
|