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Telegram/ThirdParty/range-v3/test/action/transform.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)
+
+#include <array>
+#include <vector>
+#include <range/v3/core.hpp>
+#include <range/v3/view/iota.hpp>
+#include <range/v3/algorithm/copy.hpp>
+#include <range/v3/algorithm/move.hpp>
+#include <range/v3/algorithm/equal.hpp>
+#include <range/v3/action/transform.hpp>
+#include "../simple_test.hpp"
+#include "../test_utils.hpp"
+
+int main()
+{
+    using namespace ranges;
+
+    auto v = views::ints(0,10) | to<std::vector>();
+
+    auto v0 = v | copy | actions::transform([](int i){return i*i;});
+    CPP_assert(same_as<decltype(v), decltype(v0)>);
+    ::check_equal(v0, {0,1,4,9,16,25,36,49,64,81});
+
+    actions::transform(v, [](int i){return i*i;});
+    ::check_equal(v, {0,1,4,9,16,25,36,49,64,81});
+
+    return ::test_result();
+}