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/*=============================================================================
Copyright (c) 2017 Paul Fultz II
unpack_uncallable.cpp
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/
#include <boost/hof/unpack.hpp>
struct foo
{};
namespace boost { namespace hof {
template<>
struct unpack_sequence<foo>
{
template<class F, class S>
constexpr static auto apply(F&&, S&& s) BOOST_HOF_RETURNS(s.bar);
};
}
int main() {
boost::hof::unpack(boost::hof::always(1))(foo{});
}
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