Function main

example/maximum.cpp:14–25

int main() {
    // without a predicate
    BOOST_HANA_CONSTANT_CHECK(
        hana::maximum(hana::tuple_c<int, -1, 0, 2, -4, 6, 9>) == hana::int_c<9>
    );

    // with a predicate
    auto smallest = hana::maximum(hana::tuple_c<int, -1, 0, 2, -4, 6, 9>, [](auto x, auto y) {
        return x > y; // order is reversed!
    });
    BOOST_HANA_CONSTANT_CHECK(smallest == hana::int_c<-4>);
}