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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/example/functional/compose.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/functional/compose.cpp b/src/boost/libs/hana/example/functional/compose.cpp new file mode 100644 index 000000000..a1e026df3 --- /dev/null +++ b/src/boost/libs/hana/example/functional/compose.cpp @@ -0,0 +1,21 @@ +// 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/config.hpp> +#include <boost/hana/functional/compose.hpp> +namespace hana = boost::hana; + + +int main() { + BOOST_HANA_CONSTEXPR_LAMBDA auto to_char = [](int x) { + return static_cast<char>(x + 48); + }; + + BOOST_HANA_CONSTEXPR_LAMBDA auto increment = [](auto x) { + return x + 1; + }; + + BOOST_HANA_CONSTEXPR_CHECK(hana::compose(to_char, increment)(3) == '4'); +} |