justcppdev/qa

qa

char vs unsigned char vs signed char

---

char const * str_as_ptr1 = "123";
char const * str_as_ptr2 = "123";

vs

char const str_as_arr1[] = "123";
char const str_as_arr2[] = "123";

---

void f1()
{
    std::array<long long, 2> p1;
    long long p2[2];
    long long * p3 = new long long [2];
}

vs

void f2()
{
    std::array<long long, 2> p1{};
    long long p2[2]{};
    long long * p3 = new long long [2]{};
}

---

(i++ < 2) || (i == 3) vs (i++ < 2) + (i == 3)