Hello community,

I am trying to translate this piece of C++ code into Cppfront:

template<class AssocContainer, class Func = std::plus<>>
void
combine_maps(AssocContainer& map1, const AssocContainer& map2, Func func = {})
{
    for (const auto& [k, v] : map2)
        map1[k] = func(map1[k], v);
}

And I tried this:

combine_maps:<AssocContainer, Func: type = std::plus<>>(inout map1: AssocContainer, map2: AssocContainer, func: Func = ()) = {
    for map2 do(kv) {
        map1[kv.first] = func(map1[kv.first], kv.second);
    }
}

My questions are simple:

1. is there a way to default the template parameter to std::plus<> as in plain C++?
2. is there a way to bind key and value in Cpp2 in a similar way to a structured binding? Maybe with pattern matching of some kind?
3. can I default func: Func = () parameter? It seems to emit code where there is const Func & func = <empty here>

Thank you for your time and support to everyone.