73ef4ff3
 Hu Chunming
提交三方库
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// Copyright Louis Dionne 2013-2022
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
#include <boost/hana/assert.hpp>
#include <boost/hana/fuse.hpp>
#include <boost/hana/tuple.hpp>
namespace hana = boost::hana;
auto tie = [](auto& ...vars) {
return hana::fuse([&vars...](auto ...values) {
// Using an initializer list to sequence the assignments.
int dummy[] = {0, ((void)(vars = values), 0)...};
(void)dummy;
});
};
int main() {
int a = 0;
char b = '\0';
double c = 0;
tie(a, b, c)(hana::make_tuple(1, '2', 3.3));
BOOST_HANA_RUNTIME_CHECK(a == 1 && b == '2' && c == 3.3);
}
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