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Telegram/ThirdParty/range-v3/test/algorithm/binary_search.cpp

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+// Range v3 library
+//
+//  Copyright Eric Niebler 2014-present
+//
+//  Use, modification and distribution is subject to the
+//  Boost Software License, Version 1.0. (See accompanying
+//  file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+// Project home: https://github.com/ericniebler/range-v3
+//
+//  Copyright 2005 - 2007 Adobe Systems Incorporated
+//  Distributed under the MIT License(see accompanying file LICENSE_1_0_0.txt
+//  or a copy at http://stlab.adobe.com/licenses.html)
+
+#include <utility>
+#include <range/v3/core.hpp>
+#include <range/v3/algorithm/binary_search.hpp>
+#include "../simple_test.hpp"
+
+int main()
+{
+    using ranges::begin;
+    using ranges::end;
+    using ranges::size;
+    using ranges::less;
+
+    constexpr std::pair<int, int> a[] = {{0, 0}, {0, 1}, {1, 2}, {1, 3}, {3, 4}, {3, 5}};
+    constexpr const std::pair<int, int> c[] = {
+        {0, 0}, {0, 1}, {1, 2}, {1, 3}, {3, 4}, {3, 5}};
+
+    CHECK(ranges::binary_search(begin(a), end(a), a[0]));
+    CHECK(ranges::binary_search(begin(a), end(a), a[1], less()));
+    CHECK(ranges::binary_search(begin(a), end(a), 1, less(), &std::pair<int, int>::first));
+
+    CHECK(ranges::binary_search(a, a[2]));
+    CHECK(ranges::binary_search(c, c[3]));
+
+    CHECK(ranges::binary_search(a, a[4], less()));
+    CHECK(ranges::binary_search(c, c[5], less()));
+
+    CHECK(ranges::binary_search(a, 1, less(), &std::pair<int, int>::first));
+    CHECK(ranges::binary_search(c, 1, less(), &std::pair<int, int>::first));
+
+    CHECK(ranges::binary_search(a, 0, less(), &std::pair<int, int>::first));
+    CHECK(ranges::binary_search(c, 0, less(), &std::pair<int, int>::first));
+
+    CHECK(!ranges::binary_search(a, -1, less(), &std::pair<int, int>::first));
+    CHECK(!ranges::binary_search(c, -1, less(), &std::pair<int, int>::first));
+
+    CHECK(!ranges::binary_search(a, 4, less(), &std::pair<int, int>::first));
+    CHECK(!ranges::binary_search(c, 4, less(), &std::pair<int, int>::first));
+
+    STATIC_CHECK(ranges::binary_search(begin(a), end(a), a[0]));
+    STATIC_CHECK(ranges::binary_search(begin(a), end(a), a[1], less()));
+    STATIC_CHECK(ranges::binary_search(a, a[2]));
+    STATIC_CHECK(ranges::binary_search(a, a[4], less()));
+    STATIC_CHECK(!ranges::binary_search(a, std::make_pair(-1, -1), less()));
+
+    return test_result();
+}