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

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+// Range v3 library
+//
+//  Copyright Eric Niebler 2014
+//
+//  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
+
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <utility>
+
+#include <range/v3/algorithm/find_if_not.hpp>
+#include <range/v3/core.hpp>
+
+#include "../simple_test.hpp"
+#include "../test_iterators.hpp"
+
+constexpr bool is_three(int i)
+{
+    return i == 3;
+}
+
+template<class Rng>
+constexpr bool contains_other_than_three(Rng r)
+{
+    auto it = ranges::find_if_not(r, is_three);
+    return it != ranges::end(r);
+}
+
+int main()
+{
+    using namespace ranges;
+
+    {
+        using IL = std::initializer_list<int>;
+        STATIC_CHECK(contains_other_than_three(IL{3, 3, 2, 3}));
+        STATIC_CHECK(!contains_other_than_three(IL{3, 3, 3}));
+    }
+
+    return ::test_result();
+}