C memset seems to not write to every member

Question

I wrote a small coordinate class to handle both int and float coordinates.

template 
class vector2
{
public:
    vector2() { memset(this, 0, s         


        

Answer 1

This might work instead:

char buffer[sizeof(vector2)];
memset(buffer, 0, sizeof(buffer));
vector2 *v2 = new (buffer) vector2();

..or replacing/overriding vector2::new to do something like that. Still seems weird to me though.

Definitely go with

vector2(): x(0), y(0), {}