unaligned.h

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/*
 * Copyright (C) 2019 Kaspar Schleiser <kaspar@schleiser.de>
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#ifndef UNALIGNED_H
#define UNALIGNED_H
 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct __attribute__((packed)) {
    uint16_t val;       
} uint16_una_t;
 
typedef struct __attribute__((packed)) {
    uint32_t val;       
} uint32_una_t;
 
typedef struct __attribute__((packed)) {
    uint64_t val;       
} uint64_una_t;
 
static inline uint16_t unaligned_get_u16(const void *ptr)
{
    const uint16_una_t *tmp = (const uint16_una_t *)ptr;
    return tmp->val;
}
 
static inline uint32_t unaligned_get_u32(const void *ptr)
{
    const uint32_una_t *tmp = (const uint32_una_t *)ptr;
    return tmp->val;
}
 
static inline uint64_t unaligned_get_u64(const void *ptr)
{
    const uint64_una_t *tmp = (const uint64_una_t *)ptr;
    return tmp->val;
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* UNALIGNED_H */