Function main

example/string/iterable.cpp:14–26

int main() {
    BOOST_HANA_CONSTANT_CHECK(!hana::is_empty(BOOST_HANA_STRING("abcd")));
    BOOST_HANA_CONSTANT_CHECK(hana::is_empty(BOOST_HANA_STRING("")));

    BOOST_HANA_CONSTANT_CHECK(BOOST_HANA_STRING("abcd")[hana::size_c<2>] == hana::char_c<'c'>);

    auto is_vowel = [](auto c) {
        return c ^hana::in^ BOOST_HANA_STRING("aeiouy");
    };
    BOOST_HANA_CONSTANT_CHECK(
        hana::drop_while(BOOST_HANA_STRING("aioubcd"), is_vowel) == BOOST_HANA_STRING("bcd")
    );
}