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Telegram/ThirdParty/range-v3/test/view/all.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
+
+#include <list>
+#include <vector>
+#include <range/v3/core.hpp>
+#include <range/v3/view/all.hpp>
+#include "../simple_test.hpp"
+#include "../test_utils.hpp"
+
+int main()
+{
+    using namespace ranges;
+
+    int rgi[] = {1, 1, 1, 2, 3, 4, 4};
+    std::vector<int> vi(begin(rgi), end(rgi));
+    std::list<int> li(begin(rgi), end(rgi));
+
+    ref_view<int[7]> x = views::all(rgi);
+    ref_view<std::vector<int>> y = views::all(vi);
+    ref_view<std::list<int>> z = views::all(li);
+
+    CPP_assert(sized_range<decltype(x)> && view_<decltype(x)>);
+    CPP_assert(sized_range<decltype(y)> && view_<decltype(y)>);
+    CPP_assert(sized_range<decltype(z)> && view_<decltype(z)>);
+
+    x = views::all(x);
+    y = views::all(y);
+    z = views::all(z);
+
+    CHECK(x.size() == 7u);
+    CHECK(y.size() == 7u);
+    CHECK(z.size() == 7u);
+
+    {
+        auto v = views::all(debug_input_view<int const>{rgi});
+        CHECK(v.size() == size(rgi));
+        CHECK(v.data_->first_ == rgi);
+        auto v2 = views::all(views::all(views::all(std::move(v))));
+        CPP_assert(same_as<decltype(v), decltype(v2)>);
+        CHECK(v2.size() == size(rgi));
+        CHECK(v2.data_->first_ == rgi);
+    }
+
+    return test_result();
+}