Class T4

test/value_to.cpp:73–92

map-like type with fixed size

// map-like type with fixed size
struct T4 {
    using value_type = std::pair<std::string, int>;

    value_type*
    begin()
    {
        return data;
    }

    value_type*
    end()
    {
        return data + sizeof(data);
    }

    std::pair< value_type*, bool >
    emplace(value_type);

    value_type data[2];
};

struct T5 { };