b6807015f1
This is done by generating the supporting preprocessor macros with ERB up to the required arity, like we do for the struct macros themselves. Fixes #376
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
// Copyright Louis Dionne 2013-2017
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#include <boost/hana/assert.hpp>
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#include <boost/hana/detail/preprocessor.hpp>
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#include <string>
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#include <vector>
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//////////////////////////////////////////////////////////////////////////////
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// BOOST_HANA_PP_CONCAT
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//////////////////////////////////////////////////////////////////////////////
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static_assert(BOOST_HANA_PP_CONCAT(1, 2) == 12, "");
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//////////////////////////////////////////////////////////////////////////////
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// BOOST_HANA_PP_FRONT
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//////////////////////////////////////////////////////////////////////////////
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static_assert(BOOST_HANA_PP_FRONT(0) == 0, "");
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static_assert(BOOST_HANA_PP_FRONT(0, 1) == 0, "");
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static_assert(BOOST_HANA_PP_FRONT(0, 1, 2) == 0, "");
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static_assert(BOOST_HANA_PP_FRONT(0, 1, 2, 3) == 0, "");
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static_assert(BOOST_HANA_PP_FRONT(0, 1, 2, 3, 4, 5, 6, 6, 8, 9,
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10, 11, 12, 13, 14, 15, 16, 16, 18) == 0, "");
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static_assert(BOOST_HANA_PP_FRONT(0, 1, 2, 3, 4, 5, 6, 6, 8, 9,
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10, 11, 12, 13, 14, 15, 16, 16, 18, 19) == 0, "");
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int main() {
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using Vector = std::vector<int>;
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//////////////////////////////////////////////////////////////////////////
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// BOOST_HANA_PP_STRINGIZE
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//////////////////////////////////////////////////////////////////////////
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{
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constexpr char const* xyz = BOOST_HANA_PP_STRINGIZE(xyz);
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BOOST_HANA_RUNTIME_CHECK(std::string{xyz} == "xyz");
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}{
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constexpr char const* xyz = BOOST_HANA_PP_STRINGIZE(foo{bar, baz});
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BOOST_HANA_RUNTIME_CHECK(std::string{xyz} == "foo{bar, baz}");
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}{
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constexpr char const* xyz = BOOST_HANA_PP_STRINGIZE(foo, bar, baz);
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BOOST_HANA_RUNTIME_CHECK(std::string{xyz} == "foo, bar, baz");
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}
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//////////////////////////////////////////////////////////////////////////
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// BOOST_HANA_PP_DROP_FRONT
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//////////////////////////////////////////////////////////////////////////
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{
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Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1)};
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BOOST_HANA_RUNTIME_CHECK(args == Vector{1});
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}{
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Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1, 2)};
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BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2});
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}{
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Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1, 2, 3)};
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BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2, 3});
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}{
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Vector args = {BOOST_HANA_PP_DROP_FRONT(0, 1, 2, 3, 4)};
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BOOST_HANA_RUNTIME_CHECK(args == Vector{1, 2, 3, 4});
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}
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}
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