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42 lines
1.6 KiB
C++
42 lines
1.6 KiB
C++
// Range v3 library
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//
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// Copyright Eric Niebler 2014-present
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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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#include <range/v3/core.hpp>
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#include <range/v3/algorithm/adjacent_find.hpp>
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#include "../array.hpp"
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#include "../simple_test.hpp"
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int main()
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{
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int v1[] = { 0, 2, 2, 4, 6 };
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CHECK(ranges::adjacent_find(ranges::begin(v1), ranges::end(v1)) == &v1[1]);
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CHECK(ranges::adjacent_find(v1) == &v1[1]);
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std::pair<int, int> v2[] = {{0, 0}, {0, 2}, {0, 2}, {0, 4}, {0, 6}};
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CHECK(ranges::adjacent_find(ranges::begin(v2), ranges::end(v2),
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ranges::equal_to{}, &std::pair<int, int>::second) == &v2[1]);
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CHECK(ranges::adjacent_find(v2, ranges::equal_to{}, &std::pair<int, int>::second) == &v2[1]);
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static_assert(std::is_same<std::pair<int,int>*,
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decltype(ranges::adjacent_find(v2, ranges::equal_to{},
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&std::pair<int, int>::second))>::value, "");
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{
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using namespace ranges;
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constexpr auto a1 = test::array<int, 5>{{0, 2, 2, 4, 6}};
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STATIC_CHECK(adjacent_find(begin(a1), end(a1)) == (begin(a1) + 1));
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STATIC_CHECK(adjacent_find(a1) == (begin(a1) + 1));
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constexpr std::pair<int, int> a2[] = {{0, 0}, {0, 2}, {0, 2}, {0, 4}, {0, 6}};
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STATIC_CHECK(adjacent_find(a2, ranges::equal_to{}) == (begin(a2) + 1));
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}
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return test_result();
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}
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