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Telegram/ThirdParty/range-v3/example/sort_unique.cpp

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+// Range v3 library
+//
+//  Copyright Eric Niebler 2019
+//
+//  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
+//
+
+///[sort_unique]
+// Remove all non-unique elements from a container.
+
+#include <iostream>
+#include <vector>
+
+#include <range/v3/action/sort.hpp>
+#include <range/v3/action/unique.hpp>
+#include <range/v3/view/all.hpp>
+using std::cout;
+
+int main()
+{
+    std::vector<int> vi{9, 4, 5, 2, 9, 1, 0, 2, 6, 7, 4, 5, 6, 5, 9, 2, 7,
+                        1, 4, 5, 3, 8, 5, 0, 2, 9, 3, 7, 5, 7, 5, 5, 6, 1,
+                        4, 3, 1, 8, 4, 0, 7, 8, 8, 2, 6, 5, 3, 4, 5};
+    using namespace ranges;
+    vi |= actions::sort | actions::unique;
+    // prints: [0,1,2,3,4,5,6,7,8,9]
+    cout << views::all(vi) << '\n';
+}
+///[sort_unique]