How to push_back() C array into std::vector

Question

This doesn't compile:

vector<int[2]> v;
int p[2] = {1, 2};
v.push_back(p); //< compile error here

https://godbolt.org/z/Kabq8Y

What's the alternative? I don't want to use std::array.

The std::vector declaration on itself compiles. It's the push_back that doesn't compile.

Answer 1

You could use a structure containing an array, or a structure containing two integers, if you really don't want to use std::array:

struct coords {
    int x, y;
};

vector<coords> v;
coords c = {1, 2};
v.push_back(c);

alternatively, as mentioned, you could use a structure containing an array:

struct coords {
    int x[2];
};

vector<coords> v;
coords c = {1, 2};
v.push_back(c);