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307d3d0ec8
- Split type class instances into separate files - Instances provided automatically by a type class are actually MCDs - Test each instance in a single file, not one file per method - Refactor the operator system to fix the ADL-related bug.
30 lines
703 B
C++
30 lines
703 B
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/bool.hpp>
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#include <boost/hana/detail/constexpr.hpp>
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#include <boost/hana/tuple.hpp>
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#include <type_traits>
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using namespace boost::hana;
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//! [main]
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template <unsigned i>
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struct storage {
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char c[i];
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};
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int main() {
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BOOST_HANA_CONSTEXPR_LAMBDA auto size = [](auto x, auto y) {
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return bool_<(sizeof(x) < sizeof(y))>;
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};
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auto max = maximum_by(size, list(storage<1>{}, storage<3>{}, storage<2>{}));
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static_assert(std::is_same<decltype(max), storage<3>>::value, "");
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}
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//! [main]
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