diff options
Diffstat (limited to 'src/boost/libs/hana/example/set/erase_key.cpp')
-rw-r--r-- | src/boost/libs/hana/example/set/erase_key.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/set/erase_key.cpp b/src/boost/libs/hana/example/set/erase_key.cpp new file mode 100644 index 000000000..d3bc3cd56 --- /dev/null +++ b/src/boost/libs/hana/example/set/erase_key.cpp @@ -0,0 +1,19 @@ +// 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/equal.hpp> +#include <boost/hana/erase_key.hpp> +#include <boost/hana/integral_constant.hpp> +#include <boost/hana/set.hpp> +#include <boost/hana/type.hpp> +namespace hana = boost::hana; + + +int main() { + constexpr auto xs = hana::make_set(hana::int_c<0>, hana::type_c<int>, hana::type_c<void>); + + BOOST_HANA_CONSTANT_CHECK(hana::erase_key(xs, hana::type_c<int>) == hana::make_set(hana::int_c<0>, hana::type_c<void>)); + BOOST_HANA_CONSTANT_CHECK(hana::erase_key(xs, hana::type_c<char>) == xs); +} |