AimRT/_deps/boost-src/libs/hana/test/detail/preprocessor.cpp
2025-01-12 20:40:48 +08:00

66 lines
2.5 KiB
C++

// Copyright Louis Dionne 2013-2022
// 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/preprocessor.hpp>
#include <string>
#include <vector>
//////////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_CONCAT
//////////////////////////////////////////////////////////////////////////////
static_assert(BOOST_HANA_PP_CONCAT(1, 2) == 12, "");
//////////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_FRONT
//////////////////////////////////////////////////////////////////////////////
static_assert(BOOST_HANA_PP_FRONT(0) == 0, "");
static_assert(BOOST_HANA_PP_FRONT(0, 1) == 0, "");
static_assert(BOOST_HANA_PP_FRONT(0, 1, 2) == 0, "");
static_assert(BOOST_HANA_PP_FRONT(0, 1, 2, 3) == 0, "");
static_assert(BOOST_HANA_PP_FRONT(0, 1, 2, 3, 4, 5, 6, 6, 8, 9,
10, 11, 12, 13, 14, 15, 16, 16, 18) == 0, "");
static_assert(BOOST_HANA_PP_FRONT(0, 1, 2, 3, 4, 5, 6, 6, 8, 9,
10, 11, 12, 13, 14, 15, 16, 16, 18, 19) == 0, "");
int main() {
using Vector = std::vector<int>;
//////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_STRINGIZE
//////////////////////////////////////////////////////////////////////////
{
constexpr char const* xyz = BOOST_HANA_PP_STRINGIZE(xyz);
BOOST_HANA_RUNTIME_CHECK(std::string{xyz} == "xyz");
}{
constexpr char const* xyz = BOOST_HANA_PP_STRINGIZE(foo{bar, baz});
BOOST_HANA_RUNTIME_CHECK(std::string{xyz} == "foo{bar, baz}");
}{
constexpr char const* xyz = BOOST_HANA_PP_STRINGIZE(foo, bar, baz);
BOOST_HANA_RUNTIME_CHECK(std::string{xyz} == "foo, bar, baz");
}
//////////////////////////////////////////////////////////////////////////
// BOOST_HANA_PP_DROP_FRONT
//////////////////////////////////////////////////////////////////////////
{
Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1});
}{
Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1, 2)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2});
}{
Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1, 2, 3)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2, 3});
}{
Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1, 2, 3, 4)};
BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2, 3, 4});
}
}