esp-idf/components/esp_common/include/esp_assert.h

33 lines
1.6 KiB
C
Raw Normal View History

2022-02-20 16:03:22 -05:00
/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __ESP_ASSERT_H__
#define __ESP_ASSERT_H__
#include "assert.h"
/* Since IDF v5.0, C17 standard is used, which supports both _Static_assert and static_assert syntax */
#define ESP_STATIC_ASSERT static_assert
/* Assert at compile time if possible, runtime otherwise */
#ifndef __cplusplus
/* __builtin_choose_expr() is only in C, makes this a lot cleaner */
#define TRY_STATIC_ASSERT(CONDITION, MSG) do { \
ESP_STATIC_ASSERT(__builtin_choose_expr(__builtin_constant_p(CONDITION), (CONDITION), 1), #MSG); \
assert(#MSG && (CONDITION)); \
} while(0)
#else
/* for C++, use __attribute__((error)) - works almost as well as ESP_STATIC_ASSERT */
#define TRY_STATIC_ASSERT(CONDITION, MSG) do { \
if (__builtin_constant_p(CONDITION) && !(CONDITION)) { \
extern __attribute__((error(#MSG))) void failed_compile_time_assert(void); \
failed_compile_time_assert(); \
} \
assert(#MSG && (CONDITION)); \
} while(0)
#endif /* __cplusplus */
#endif /* __ESP_ASSERT_H__ */