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111
Telegram/ThirdParty/range-v3/test/algorithm/ends_with.cpp
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111
Telegram/ThirdParty/range-v3/test/algorithm/ends_with.cpp
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// Range v3 library
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//
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// Copyright Johel Guerrero 2019
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//
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// Use, modification and distribution is subject to the
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// Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Project home: https://github.com/ericniebler/range-v3
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//
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#include <initializer_list>
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#include <range/v3/algorithm/ends_with.hpp>
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#include <range/v3/iterator/operations.hpp>
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#include <range/v3/view/subrange.hpp>
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#include "../simple_test.hpp"
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#include "../test_iterators.hpp"
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int comparison_count = 0;
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template<typename T>
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bool counting_equals(const T &a, const T &b)
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{
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++comparison_count;
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return a == b;
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}
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int main()
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{
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using namespace ranges;
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int ia[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
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constexpr auto as = distance(ia);
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int ib[] = {5, 6, 7, 8, 9};
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constexpr auto bs = distance(ib);
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CHECK(ends_with(RandomAccessIterator<const int*>(ia),
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RandomAccessIterator<const int*>(ia + as),
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RandomAccessIterator<const int*>(ib),
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RandomAccessIterator<const int*>(ib + bs)));
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CHECK(!ends_with(InputIterator<const int*>(ia),
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InputIterator<const int*, true>(ia + as),
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InputIterator<const int*>(ib),
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InputIterator<const int*, true>(ib + bs - 1)));
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CHECK(!ends_with(ForwardIterator<const int*>(ia),
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Sentinel<const int*>(ia + as),
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ForwardIterator<const int*>(ib),
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Sentinel<const int*>(ib + bs - 1)));
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CHECK(!ends_with(make_subrange(RandomAccessIterator<const int*>(ia),
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RandomAccessIterator<const int*>(ia + as)),
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make_subrange(RandomAccessIterator<const int*>(ib),
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RandomAccessIterator<const int*>(ib + bs - 1))));
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CHECK(ends_with(make_subrange(InputIterator<const int*>(ia),
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InputIterator<const int*, true>(ia + as)),
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make_subrange(InputIterator<const int*>(ib),
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InputIterator<const int*, true>(ib + bs))));
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CHECK(ends_with(make_subrange(ForwardIterator<const int*>(ia),
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Sentinel<const int*>(ia + as)),
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make_subrange(ForwardIterator<const int*>(ib),
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Sentinel<const int*>(ib + bs))));
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comparison_count = 0;
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CHECK(!ends_with(RandomAccessIterator<const int*>(ib),
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RandomAccessIterator<const int*>(ib + bs),
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RandomAccessIterator<const int*>(ia),
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RandomAccessIterator<const int*>(ia + as),
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counting_equals<int>));
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CHECK(comparison_count == 0);
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comparison_count = 0;
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CHECK(ends_with(InputIterator<const int*>(ia),
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InputIterator<const int*, true>(ia + as),
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InputIterator<const int*>(ib),
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InputIterator<const int*, true>(ib + bs),
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counting_equals<int>));
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CHECK(comparison_count > 0);
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comparison_count = 0;
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CHECK(ends_with(ForwardIterator<const int*>(ia),
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Sentinel<const int*>(ia + as),
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ForwardIterator<const int*>(ib),
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Sentinel<const int*>(ib + bs),
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counting_equals<int>));
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CHECK(comparison_count > 0);
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comparison_count = 0;
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CHECK(ends_with(make_subrange(RandomAccessIterator<const int*>(ia),
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RandomAccessIterator<const int*>(ia + as)),
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make_subrange(RandomAccessIterator<const int*>(ib),
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RandomAccessIterator<const int*>(ib + bs)),
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counting_equals<int>));
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CHECK(comparison_count > 0);
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comparison_count = 0;
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CHECK(!ends_with(make_subrange(InputIterator<const int*>(ib),
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InputIterator<const int*, true>(ib + bs - 1)),
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make_subrange(InputIterator<const int*>(ib),
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InputIterator<const int*, true>(ib + bs)),
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counting_equals<int>));
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CHECK(comparison_count == 0);
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comparison_count = 0;
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CHECK(!ends_with(make_subrange(ForwardIterator<const int*>(ia),
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Sentinel<const int*>(ia)),
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make_subrange(ForwardIterator<const int*>(ib),
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Sentinel<const int*>(ib + bs)),
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counting_equals<int>));
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CHECK(comparison_count == 0);
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#if RANGES_CXX_CONSTEXPR >= RANGES_CXX_CONSTEXPR_14 && RANGES_CONSTEXPR_INVOKE
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using IL = std::initializer_list<int>;
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static_assert(ends_with(IL{0, 1, 2, 3, 4}, IL{3, 4}), "");
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static_assert(!ends_with(IL{0, 1, 2, 3, 4}, IL{2, 3}), "");
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static_assert(ends_with(IL{}, IL{}), "");
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#endif
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return ::test_result();
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}
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