diff options
Diffstat (limited to 'src/boost/libs/hana/example/fuse.cpp')
-rw-r--r-- | src/boost/libs/hana/example/fuse.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/fuse.cpp b/src/boost/libs/hana/example/fuse.cpp new file mode 100644 index 00000000..52f422db --- /dev/null +++ b/src/boost/libs/hana/example/fuse.cpp @@ -0,0 +1,26 @@ +// Copyright Louis Dionne 2013-2017 +// 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); +} |