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101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
// Copyright (C) 2019 T. Zachary Laine
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/stl_interfaces/iterator_interface.hpp>
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#include <boost/stl_interfaces/view_interface.hpp>
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#include <boost/stl_interfaces/sequence_container_interface.hpp>
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#include <boost/mpl/assert.hpp>
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#include <gtest/gtest.h>
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#include <array>
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#include <list>
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#include <vector>
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namespace detail = boost::stl_interfaces::detail;
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namespace v1_dtl = boost::stl_interfaces::v1::v1_dtl;
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// iter_difference_t
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BOOST_MPL_ASSERT(
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(std::is_same<v1_dtl::iter_difference_t<int *>, std::ptrdiff_t>));
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::iter_difference_t<std::vector<double>::iterator>,
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std::vector<double>::difference_type>));
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::iter_difference_t<std::list<double>::iterator>,
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std::list<double>::difference_type>));
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struct ridiculous_range
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{
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int * begin() { return nullptr; }
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double end() { return 1.3; }
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};
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// iterator_t
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::iterator_t<std::vector<double>>,
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std::vector<double>::iterator>));
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::iterator_t<std::list<double>>,
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std::list<double>::iterator>));
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BOOST_MPL_ASSERT((std::is_same<v1_dtl::iterator_t<ridiculous_range>, int *>));
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// sentinel_t
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::sentinel_t<std::vector<double>>,
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std::vector<double>::iterator>));
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::sentinel_t<std::list<double>>,
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std::list<double>::iterator>));
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BOOST_MPL_ASSERT((std::is_same<v1_dtl::sentinel_t<ridiculous_range>, double>));
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// range_difference_t
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BOOST_MPL_ASSERT(
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(std::is_same<
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v1_dtl::range_difference_t<std::vector<double>>,
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std::iterator_traits<std::vector<double>::iterator>::difference_type>));
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BOOST_MPL_ASSERT(
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(std::is_same<
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v1_dtl::range_difference_t<std::list<double>>,
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std::iterator_traits<std::list<double>::iterator>::difference_type>));
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BOOST_MPL_ASSERT((std::is_same<
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v1_dtl::range_difference_t<ridiculous_range>,
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std::ptrdiff_t>));
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// common_range
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static_assert(v1_dtl::common_range<std::vector<double>>::value, "");
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static_assert(v1_dtl::common_range<std::list<double>>::value, "");
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static_assert(!v1_dtl::common_range<ridiculous_range>::value, "");
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struct no_clear
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{};
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TEST(v1_dtl, clear_impl)
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{
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{
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no_clear nc;
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v1_dtl::clear_impl<no_clear>::call(nc);
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}
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{
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std::vector<int> vec(10);
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v1_dtl::clear_impl<std::vector<int>>::call(vec);
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EXPECT_TRUE(vec.empty());
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}
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}
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TEST(detail, n_iter)
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{
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std::array<int, 5> ints = {{0, 1, 2, 3, 4}};
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int const new_value = 6;
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detail::n_iter<int, int> first = detail::make_n_iter(new_value, 3);
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detail::n_iter<int, int> last = detail::make_n_iter_end(new_value, 3);
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std::copy(first, last, &ints[1]);
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EXPECT_EQ(ints, (std::array<int, 5>{{0, 6, 6, 6, 4}}));
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}
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