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// 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/detail/struct_macros.hpp>
#include <string>
#include <vector>
//////////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_NARG
//////////////////////////////////////////////////////////////////////////////
static_assert(BOOST_HANA_PP_NARG(x) == 1, "");
static_assert(BOOST_HANA_PP_NARG(x, x) == 2, "");
static_assert(BOOST_HANA_PP_NARG(x, x, x) == 3, "");
static_assert(BOOST_HANA_PP_NARG(x, x, x, x) == 4, "");
static_assert(BOOST_HANA_PP_NARG(
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x) == 38, "");
static_assert(BOOST_HANA_PP_NARG(
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x) == 39, "");
static_assert(BOOST_HANA_PP_NARG(
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x,
x, x, x, x, x, x, x, x, x, x) == 40, "");
//////////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_BACK
//////////////////////////////////////////////////////////////////////////////
static_assert(BOOST_HANA_PP_BACK(1) == 1, "");
static_assert(BOOST_HANA_PP_BACK(1, 2) == 2, "");
static_assert(BOOST_HANA_PP_BACK(1, 2, 3) == 3, "");
static_assert(BOOST_HANA_PP_BACK(1, 2, 3, 4) == 4, "");
static_assert(BOOST_HANA_PP_BACK(1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39) == 39, "");
static_assert(BOOST_HANA_PP_BACK(1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38) == 38, "");
static_assert(BOOST_HANA_PP_BACK(1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39, 40) == 40, "");
int main() {
using Vector = std::vector<int>;
//////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_DROP_BACK
//////////////////////////////////////////////////////////////////////////
{
Vector args = {BOOST_HANA_PP_DROP_BACK(1)};
BOOST_HANA_RUNTIME_CHECK(args.empty());
}{
Vector args = {BOOST_HANA_PP_DROP_BACK(1, 2)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1});
}{
Vector args = {BOOST_HANA_PP_DROP_BACK(1, 2, 3)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2});
}{
Vector args = {BOOST_HANA_PP_DROP_BACK(1, 2, 3, 4)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2, 3});
}{
Vector args = {BOOST_HANA_PP_DROP_BACK(1, 2, 3, 4, 5)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2, 3, 4});
}{
Vector args = {BOOST_HANA_PP_DROP_BACK(
1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39
)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38
});
}{
Vector args = {BOOST_HANA_PP_DROP_BACK(
1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39, 40
)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{
1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39
});
}
}
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