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Diffstat (limited to 'src/boost/libs/hana/example/tuple/tuple.cpp')
-rw-r--r-- | src/boost/libs/hana/example/tuple/tuple.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/tuple/tuple.cpp b/src/boost/libs/hana/example/tuple/tuple.cpp new file mode 100644 index 000000000..e16ff8d07 --- /dev/null +++ b/src/boost/libs/hana/example/tuple/tuple.cpp @@ -0,0 +1,29 @@ +// 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/integral_constant.hpp> +#include <boost/hana/transform.hpp> +#include <boost/hana/tuple.hpp> + +#include <string> +namespace hana = boost::hana; +using namespace hana::literals; + + +struct Fish { std::string name; }; +struct Cat { std::string name; }; +struct Dog { std::string name; }; + +int main() { + hana::tuple<Fish, Cat, Dog> animals{{"Nemo"}, {"Garfield"}, {"Snoopy"}}; + animals[0_c].name = "Moby Dick"; // can modify elements in place, like std::tuple + + auto names = hana::transform(animals, [](auto a) { + return a.name; + }); + + BOOST_HANA_RUNTIME_CHECK(names == hana::make_tuple("Moby Dick", "Garfield", "Snoopy")); +} |