forked from boostorg/core
117 lines
2.2 KiB
C++
117 lines
2.2 KiB
C++
/*
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Copyright 2019 Glen Joseph Fernandes
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(glenjofe@gmail.com)
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Distributed under the Boost Software License, Version 1.0.
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(http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifdef __cpp_deduction_guides
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#include <boost/core/span.hpp>
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#include <boost/core/lightweight_test.hpp>
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template<class T>
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class range {
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public:
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T* data() {
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return &v_[0];
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}
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std::size_t size() const {
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return 4;
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}
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private:
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T v_[4];
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};
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void test_data_size()
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{
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int a[4];
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boost::span s(&a[0], 4);
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BOOST_TEST_EQ(s.extent, boost::dynamic_extent);
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BOOST_TEST_EQ(s.data(), &a[0]);
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BOOST_TEST_EQ(s.size(), 4);
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}
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void test_first_last()
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{
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int a[4];
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boost::span s(&a[0], &a[4]);
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BOOST_TEST_EQ(s.extent, boost::dynamic_extent);
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BOOST_TEST_EQ(s.data(), &a[0]);
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BOOST_TEST_EQ(s.size(), 4);
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}
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void test_array()
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{
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int a[4];
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boost::span s(a);
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BOOST_TEST_EQ(s.extent, 4);
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BOOST_TEST_EQ(s.data(), &a[0]);
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BOOST_TEST_EQ(s.size(), 4);
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}
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void test_std_array()
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{
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std::array<int, 4> a;
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boost::span s(a);
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BOOST_TEST_EQ(s.extent, 4);
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BOOST_TEST_EQ(s.data(), a.data());
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BOOST_TEST_EQ(s.size(), a.size());
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}
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void test_const_std_array()
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{
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const std::array<int, 4> a = std::array<int, 4>();
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boost::span s(a);
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BOOST_TEST_EQ(s.extent, 4);
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BOOST_TEST_EQ(s.data(), a.data());
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BOOST_TEST_EQ(s.size(), a.size());
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}
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void test_range()
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{
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range<int> c;
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boost::span s(c);
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BOOST_TEST_EQ(s.extent, boost::dynamic_extent);
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BOOST_TEST_EQ(s.data(), c.data());
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BOOST_TEST_EQ(s.size(), c.size());
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}
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void test_span_dynamic()
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{
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int a[4];
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boost::span s(boost::span<int>(&a[0], 4));
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BOOST_TEST_EQ(s.extent, boost::dynamic_extent);
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BOOST_TEST_EQ(s.data(), &a[0]);
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BOOST_TEST_EQ(s.size(), 4);
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}
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void test_span_static()
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{
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int a[4];
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boost::span s(boost::span<int, 4>(&a[0], 4));
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BOOST_TEST_EQ(s.extent, 4);
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BOOST_TEST_EQ(s.data(), &a[0]);
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BOOST_TEST_EQ(s.size(), 4);
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}
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int main()
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{
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test_data_size();
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test_first_last();
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test_array();
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test_std_array();
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test_const_std_array();
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test_range();
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test_span_dynamic();
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test_span_static();
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return boost::report_errors();
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}
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#else
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int main()
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{
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return 0;
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}
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#endif
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