unsigned int a, b, c, d, e, f;

int res = sscanf(r.c_str(), "X:X:X:X:X:X", &a, &b, &c, &d, &e, &f);

if (res != SIZE) {

fprintf(stderr, "Mac::Mac sscanf return %d r=%s\n", res, r.c_str());

return;

}

mac_[0] = a;

mac_[1] = b;

mac_[2] = c;

mac_[3] = d;

mac_[4] = e;

mac_[5] = f;

Mac mac1; // Mac()

uint8_t buf[] = {0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC};

Mac mac2(buf); // Mac(const std::string r)

Mac mac3("12:34:56:78:9A:BC"); // Mac(const std::string r)

EXPECT_EQ(mac2, mac3);

Mac mac("12:34:56:78:9A:BC");

uint8_t buf[Mac::SIZE];

memcpy(buf, mac, Mac::SIZE); // operator uint8_t*()

EXPECT_TRUE(memcmp(buf, mac, Mac::SIZE) == 0);

std::string s = std::string(mac); // explicit operator std::string()

EXPECT_EQ(s, "12:34:56:78:9A:BC");