声明类似于C风格的数组（C ++）

Question

In C a programmer can declare an array like so:

unsigned char Fonts[2][8] {
    [1] = {0, 31, 0, 31, 0, 31, 0, 31}
};

And element [0] is likely random bits. Is there a similar way in C++?

Answer 1

This works in C++:

unsigned char foo [2][8] = {
        {},
        {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'}
};

Here, foo[0] is zero-initialized as defined by the C++ standard ( §8.5.5 - default initialization for POD types is zero-initialization). For non-POD-types the default constructor is called.

Answer 2

You can do this:

unsigned char Fonts[2][8] = {
    {0},
    {0, 31, 0, 31, 0, 31, 0, 31}
};

Answer 3

Why not just do

unsigned char Fonts[2][8] {
    {0, 0, 0, 0, 0, 0, 0, 0},
    {0, 31, 0, 31, 0, 31, 0, 31}
};

?