Initializing an std::array of non-default-constructible elements?

Question

Suppose type foo_t with a named constructor idiom, make_foo(). Now, I want to have exactly 123 foo\'s - no more, no less. So, I\'m thinking about a

Answer 1

The usual.

template
std::array make_foos(std::index_sequence) {
    return { ((void)Is, make_foo())... };
}

template
std::array make_foos() {
    return make_foos(std::make_index_sequence());
}