蛋疼的C语音字符串拷贝 strncpyr

uint8_t *strncpyr(uint8_t *dest, const uint8_t *src, int8_t r, int32_t n){    int32_t pos = 0;        for(pos = 0; ((src[pos] != 0) && (src[pos] != r) && (pos < n)); pos++)    {        dest[pos] = src[pos];    }        dest[pos] = 0;        return dest;}