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//
// zug: transducers for C++
// Copyright (C) 2019 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#include <zug/meta.hpp>
#include <zug/util.hpp>
#include <catch2/catch.hpp>
using namespace zug;
TEST_CASE("output_of, identity")
{
using meta::pack;
using identity_t = decltype(identity);
static_assert(output_of_t<identity_t>{} == pack<>{}, "");
static_assert(output_of_t<identity_t, int>{} == pack<int&&>{}, "");
static_assert(
output_of_t<identity_t, int, float>{} == pack<int&&, float&&>{}, "");
static_assert(output_of_t<identity_t, meta::pack<int, float>>{} ==
pack<int&&, float&&>{},
"");
static_assert(output_of_t<identity_t, int&>{} == pack<int&>{}, "");
static_assert(output_of_t<identity_t, int&, const float&>{} ==
pack<int&, const float&>{},
"");
static_assert(output_of_t<identity_t, int&&>{} == pack<int&&>{}, "");
static_assert(output_of_t<identity_t, const int&&, float&&>{} ==
pack<const int&&, float&&>{},
"");
}
TEST_CASE("result_of, identity")
{
using meta::pack;
using identity_t = decltype(identity);
static_assert(pack<result_of_t<identity_t>>{} == pack<std::tuple<>>{}, "");
static_assert(pack<result_of_t<identity_t, int>>{} == pack<int>{}, "");
static_assert(pack<result_of_t<identity_t, int, float>>{} ==
pack<std::tuple<int, float>>{},
"");
static_assert(pack<result_of_t<identity_t, meta::pack<int, float>>>{} ==
pack<std::tuple<int, float>>{},
"");
static_assert(pack<result_of_t<identity_t, int&>>{} == pack<int>{}, "");
static_assert(pack<result_of_t<identity_t, int&, float&>>{} ==
pack<std::tuple<int, float>>{},
"");
}
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