27 lines
727 B
C++
27 lines
727 B
C++
// Copyright Louis Dionne 2013-2017
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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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#include <boost/hana/assert.hpp>
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#include <boost/hana/fuse.hpp>
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#include <boost/hana/tuple.hpp>
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namespace hana = boost::hana;
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auto tie = [](auto& ...vars) {
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return hana::fuse([&vars...](auto ...values) {
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// Using an initializer list to sequence the assignments.
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int dummy[] = {0, ((void)(vars = values), 0)...};
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(void)dummy;
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});
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};
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int main() {
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int a = 0;
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char b = '\0';
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double c = 0;
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tie(a, b, c)(hana::make_tuple(1, '2', 3.3));
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BOOST_HANA_RUNTIME_CHECK(a == 1 && b == '2' && c == 3.3);
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}
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