#ifndef _USER_LIB_H_
#define _USER_LIB_H_

#include <stdint.h>

typedef union
{
    float f;
    int32_t c;
} float32_u; // 浮点数共用体

// uint32小端转大端
#define S2B_UINT32(a) \
    (((uint32_t)(a) & 0xFF000000) >> 24) + (((uint32_t)(a) & 0x00FF0000) >> 8) + (((uint32_t)(a) & 0x0000FF00) << 8) + (((uint32_t)(a) & 0x000000FF) << 24)

// uint32大端转小端
#define B2S_UINT32(a) S2B_UINT32(a)

// uint16小端转大端
#define S2B_UINT16(a) ((((uint16_t)(a) & 0xFF00) >> 8) + (((uint16_t)(a) & 0x00FF) << 8))

// uint16大端转小端
#define B2S_UINT16(a) S2B_UINT16(a)

#define BUILD_UINT16(loByte, hiByte) \
    ((uint16_t)(((loByte) & 0x00FF) + (((hiByte) & 0x00FF) << 8)))

// float32小端转大端
static inline float S2B_FLOAT32(float fv)
{
    float32_u _f;
    _f.f = fv;
    _f.c = S2B_UINT32(_f.c);
    return _f.f;
}

// float32大端转小端
#define B2S_FLOAT32(a) S2B_FLOAT32(a)

uint8_t xor_compute(const uint8_t *const data, uint16_t length);
#endif