Function main

example/functional/capture.cpp:11–18

int main() {
    BOOST_HANA_CONSTEXPR_LAMBDA auto sum = [](auto x, auto y, auto z) {
        return x + y + z;
    };

    BOOST_HANA_CONSTEXPR_CHECK(hana::capture(1, 2, 3)(sum)() == 6);
    BOOST_HANA_CONSTEXPR_CHECK(hana::capture(1, 2)(sum)(3) == 6);
}