Computing length of array

Question

I have a C++ array declared as mentioned below:

CString carray[] =
{
        \"A\",
        \"B\",
        \"C\",
        \"D\",
        \"E\"
}

Answer 1

That's not runtime, it's compile time. The way you're using is correct. Note that Visual Studio defines a _countof function that does the same.

At runtime, the length cannot be determined. You either keep a length yourself, or use std::vector