constexpr_lambda_example_2.cpp

#include <array>
#include <utility>
#include <iostream>

template < std::size_t N >
constexpr auto ints = []{
    std::array<std::size_t, N> arr{};
    for( std::size_t i{}; i < N; ++i ) arr[i] = i;
    return arr;
}();

int main() {
    constexpr auto range = ints<10>;
    for(auto elem: range) std::cout << elem << " ";
}