hana/test/functional/capture.cpp
2017-01-07 14:14:18 -08:00

101 lines
3.1 KiB
C++

// 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/functional/capture.hpp>
#include <laws/base.hpp>
namespace hana = boost::hana;
using hana::test::ct_eq;
int main() {
hana::test::_injection<0> f{};
// 0-arg capture
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture()(f)(),
f()
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture()(f)(ct_eq<0>{}),
f(ct_eq<0>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture()(f)(ct_eq<0>{}, ct_eq<1>{}),
f(ct_eq<0>{}, ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture()(f)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
));
// 1-arg capture
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{})(f)(),
f(ct_eq<77>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{})(f)(ct_eq<0>{}),
f(ct_eq<77>{}, ct_eq<0>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{})(f)(ct_eq<0>{}, ct_eq<1>{}),
f(ct_eq<77>{}, ct_eq<0>{}, ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{})(f)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
f(ct_eq<77>{}, ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
));
// 2-args capture
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{})(f)(),
f(ct_eq<77>{}, ct_eq<88>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{})(f)(ct_eq<0>{}),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<0>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{})(f)(ct_eq<0>{}, ct_eq<1>{}),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<0>{}, ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{})(f)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
));
// 3-args capture
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{})(f)(),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{})(f)(ct_eq<0>{}),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{}, ct_eq<0>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{})(f)(ct_eq<0>{}, ct_eq<1>{}),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{}, ct_eq<0>{}, ct_eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(hana::equal(
hana::capture(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{})(f)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
f(ct_eq<77>{}, ct_eq<88>{}, ct_eq<99>{}, ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
));
}