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37 lines
1.0 KiB
C++
37 lines
1.0 KiB
C++
/*
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@copyright Louis Dionne 2014
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/hana/detail/constexpr.hpp>
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#include <boost/hana/detail/static_assert.hpp>
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#include <boost/hana/list.hpp>
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#include <boost/hana/type.hpp>
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#include <cassert>
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#include <sstream>
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#include <string>
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using namespace boost::hana;
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int main() {
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//! [fusion]
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BOOST_HANA_CONSTEXPR_LAMBDA auto to_string = [](auto x) {
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return (std::ostringstream{} << x).str();
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};
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assert(
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fmap(to_string, list(1, '2', "345", std::string{"67"})) ==
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list("1", "2", "345", "67")
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);
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//! [fusion]
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//! [mpl]
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BOOST_HANA_CONSTEXPR_LAMBDA auto types = list_t<void, int(), char[10]>;
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BOOST_HANA_CONSTEXPR_LAMBDA auto pointers = fmap(template_<std::add_pointer_t>, types);
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BOOST_HANA_STATIC_ASSERT(pointers == list_t<void*, int(*)(), char(*)[10]>);
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BOOST_HANA_STATIC_ASSERT(head(pointers) == type<void*>);
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//! [mpl]
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}
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