Suppose I want to make an array of pairs:

std::array my_pairs{
    std::pair{1.23, 1},
    std::pair{3.14, 2},
    std::pair{7.89, 3},
};

In different instantiations, the first type in the pairs will differ, and the number of elements will differ, but the second type in the pairs will remain the same.

Is there a way to use a deduction guide to avoid the need to write std::pair for each element?

template<typename T, std::size_t size>
using PairArray = std::array<std::pair<T, int>, size>;

// magic code goes here

PairArray my_pairs{
    {1.23, 1},
    {3.14, 2},
    {7.89, 3},
};

Alternatively, could a helper function be defined to make it work?

template</* ??? */>
auto make_pair_array(/* ??? */) { /* ??? */ }

auto my_pairs = make_pair_array(
    {1.23, 1},
    {3.14, 2},
    {7.89, 3}
);