C++ function returning function

Question

Where in the standard are functions returning functions disallowed? I understand they are conceptually ridiculous, but it seems to me that the grammar would allow them. Acco

Answer 1

using namespace std;

auto hello()
{
    char name[] = "asdf";
    return [&]() -> void
    {
        printf("%s\n", name);
    };
}

int main()
{
    hello()();
    auto r = hello();
    r();
    return 0;
}