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Diffstat (limited to 'src/boost/libs/hana/test/experimental/view/transformed/drop_front.cpp')
-rw-r--r-- | src/boost/libs/hana/test/experimental/view/transformed/drop_front.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/experimental/view/transformed/drop_front.cpp b/src/boost/libs/hana/test/experimental/view/transformed/drop_front.cpp new file mode 100644 index 000000000..0db64fd41 --- /dev/null +++ b/src/boost/libs/hana/test/experimental/view/transformed/drop_front.cpp @@ -0,0 +1,98 @@ +// 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/drop_front.hpp> +#include <boost/hana/equal.hpp> +#include <boost/hana/experimental/view.hpp> +#include <boost/hana/integral_constant.hpp> + +#include <laws/base.hpp> +#include <support/seq.hpp> +namespace hana = boost::hana; +using hana::test::ct_eq; + + +int main() { + auto container = ::seq; + auto f = hana::test::_injection<0>{}; + + { + auto storage = container(); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<0>), + container() + )); + } + + { + auto storage = container(ct_eq<0>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<0>), + container(f(ct_eq<0>{})) + )); + }{ + auto storage = container(ct_eq<0>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<1>), + container() + )); + } + + { + auto storage = container(ct_eq<0>{}, ct_eq<1>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<0>), + container(f(ct_eq<0>{}), f(ct_eq<1>{})) + )); + }{ + auto storage = container(ct_eq<0>{}, ct_eq<1>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<1>), + container(f(ct_eq<1>{})) + )); + }{ + auto storage = container(ct_eq<0>{}, ct_eq<1>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<2>), + container() + )); + } + + { + auto storage = container(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<0>), + container(f(ct_eq<0>{}), f(ct_eq<1>{}), f(ct_eq<2>{})) + )); + }{ + auto storage = container(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<1>), + container(f(ct_eq<1>{}), f(ct_eq<2>{})) + )); + }{ + auto storage = container(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<2>), + container(f(ct_eq<2>{})) + )); + }{ + auto storage = container(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}); + auto transformed = hana::experimental::transformed(storage, f); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::drop_front(transformed, hana::size_c<3>), + container() + )); + } +} |