uint8_t,uint16_t,uint64_t 相互转换

1. 声明 uint8_t, uint16_t 互转测试数据

uint8_t src_data[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
uint16_t dec_data[5];
uint8_t nsrc_data[10];

  1.1 uint8_t 转 uint16_t

//uint8_t 转 uint16_t
for (int i = 0; i < 5; i++) {
    dec_data[i] = src_data[i * 2] | (src_data[i * 2 + 1] << 8);
    //%hu
    LOGI("dec_data :%hu", dec_data[i]);
}

  1.2 uint16_t 转 uint8_t

//uint16_t 转 uint8_t
for (int i = 0; i < 5; i++) {
    nsrc_data[i * 2] = dec_data[i];
    nsrc_data[i * 2 + 1] = dec_data[i] >> 8;
     //%c
    LOGI("dec_data1 :%d dec_data2 :%d", nsrc_data[i * 2], nsrc_data[i * 2 + 1]);
}

2. 声明 uint8_t, uint64_t 互转测试数据

uint8_t src_data[12] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11};
uint64_t dec_data[3];
uint8_t nsrc_data[12];

  2.1 uint8_t 转 uint64_t

//uint8_t 转 uint64_t
for (int i = 0; i < 3; i++) {
    dec_data[i] = src_data[i * 4]
                  | (src_data[i * 4 + 1] << 8)
                  | (src_data[i * 4 + 2] << 16)
                  | (src_data[i * 4 + 3] << 24);
    //%hu
    LOGI("dec_data :%hu", dec_data[i]);
}

  2.2 uint64_t 转 uint8_t

//uint64_t 转 uint8_t
for (int i = 0; i < 3; i++) {
    nsrc_data[i * 4] = dec_data[i];
    nsrc_data[i * 4 + 1] = dec_data[i] >> 8;
    nsrc_data[i * 4 + 2] = dec_data[i] >> 16;
    nsrc_data[i * 4 + 3] = dec_data[i] >> 24;
    //%c
    LOGI("dec_data1 :%d dec_data2 :%d", nsrc_data[i * 4], nsrc_data[i * 4 + 1]);
    LOGI("dec_data1 :%d dec_data2 :%d", nsrc_data[i * 4 + 2], nsrc_data[i * 4 + 3]);
}

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转载自blog.csdn.net/u011193452/article/details/108385967