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1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #ifndef ESE_SYSDEPS_H__
17 #define ESE_SYSDEPS_H__ 1
18 
19 #include <stdbool.h> /* bool */
20 #include <stdint.h> /* uint*_t */
21 
22 #define ESE_UINT32_MAX (UINT32_MAX)
23 
24 #ifndef NULL
25 #define NULL ((void *)(0))
26 #endif
27 
28 /* Set visibility for exported functions. */
29 #ifndef ESE_API
30 #define ESE_API __attribute__ ((visibility("default")))
31 #endif  /* ESE_API */
32 
33 /* Mimic C11 _Static_assert behavior for a C99 world. */
34 #ifndef _static_assert
35 #define _static_assert(what, why) { while (!(1 / (!!(what)))); }
36 #endif
37 
38 extern void *ese_memcpy(void *__dest, const void *__src, uint64_t __n);
39 extern void *ese_memset(void *__s, int __c, uint64_t __n);
40 
41 extern uint32_t ese_be32toh(uint32_t big_endian_32bits);
42 extern uint32_t ese_htobe32(uint32_t host_32bits);
43 extern uint32_t ese_le32toh(uint32_t little_endian_32bits);
44 extern uint32_t ese_htole32(uint32_t host_32bits);
45 
46 #endif  /* ESE_SYSDEPS_H__ */
47