diff options
Diffstat (limited to 'src/boost/libs/hana/example/maximum_by.cpp')
-rw-r--r-- | src/boost/libs/hana/example/maximum_by.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/maximum_by.cpp b/src/boost/libs/hana/example/maximum_by.cpp new file mode 100644 index 000000000..5ee979c23 --- /dev/null +++ b/src/boost/libs/hana/example/maximum_by.cpp @@ -0,0 +1,22 @@ +// 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/equal.hpp> +#include <boost/hana/length.hpp> +#include <boost/hana/maximum.hpp> +#include <boost/hana/ordering.hpp> +#include <boost/hana/tuple.hpp> +namespace hana = boost::hana; + + +int main() { + static_assert( + hana::maximum.by(hana::ordering(hana::length), hana::make_tuple( + hana::make_tuple(), + hana::make_tuple(1, '2'), + hana::make_tuple(3.3, nullptr, 4) + )) + == hana::make_tuple(3.3, nullptr, 4) + , ""); +} |