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Telegram/ThirdParty/range-v3/test/algorithm/replace.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)
+
+//===----------------------------------------------------------------------===//
+//
+//                     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 <vector>
+#include <range/v3/core.hpp>
+#include <range/v3/algorithm/replace.hpp>
+#include "../simple_test.hpp"
+#include "../test_utils.hpp"
+#include "../test_iterators.hpp"
+
+template<typename Iter, typename Sent = Iter>
+void test_iter()
+{
+    int ia[] = {0, 1, 2, 3, 4};
+    const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+    Iter i = ranges::replace(Iter(ia), Sent(ia+sa), 2, 5);
+    CHECK(ia[0] == 0);
+    CHECK(ia[1] == 1);
+    CHECK(ia[2] == 5);
+    CHECK(ia[3] == 3);
+    CHECK(ia[4] == 4);
+    CHECK(base(i) == ia + sa);
+}
+
+template<typename Iter, typename Sent = Iter>
+void test_rng()
+{
+    int ia[] = {0, 1, 2, 3, 4};
+    const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+    auto rng = ranges::make_subrange(Iter(ia), Sent(ia+sa));
+    Iter i = ranges::replace(rng, 2, 5);
+    CHECK(ia[0] == 0);
+    CHECK(ia[1] == 1);
+    CHECK(ia[2] == 5);
+    CHECK(ia[3] == 3);
+    CHECK(ia[4] == 4);
+    CHECK(base(i) == ia + sa);
+}
+
+constexpr bool test_constexpr()
+{
+    using namespace ranges;
+    int ia[] = {0, 1, 2, 3, 4};
+    constexpr auto sa = ranges::size(ia);
+    auto r = ranges::replace(ia, 2, 42);
+    STATIC_CHECK_RETURN(r == ia + sa);
+    STATIC_CHECK_RETURN(ia[0] == 0);
+    STATIC_CHECK_RETURN(ia[1] == 1);
+    STATIC_CHECK_RETURN(ia[2] == 42);
+    STATIC_CHECK_RETURN(ia[3] == 3);
+    STATIC_CHECK_RETURN(ia[4] == 4);
+    return true;
+}
+
+int main()
+{
+    test_iter<ForwardIterator<int*> >();
+    test_iter<BidirectionalIterator<int*> >();
+    test_iter<RandomAccessIterator<int*> >();
+    test_iter<int*>();
+
+    test_iter<ForwardIterator<int*>, Sentinel<int*> >();
+    test_iter<BidirectionalIterator<int*>, Sentinel<int*> >();
+    test_iter<RandomAccessIterator<int*>, Sentinel<int*> >();
+
+    test_rng<ForwardIterator<int*> >();
+    test_rng<BidirectionalIterator<int*> >();
+    test_rng<RandomAccessIterator<int*> >();
+    test_rng<int*>();
+
+    test_rng<ForwardIterator<int*>, Sentinel<int*> >();
+    test_rng<BidirectionalIterator<int*>, Sentinel<int*> >();
+    test_rng<RandomAccessIterator<int*>, Sentinel<int*> >();
+
+    // test projection
+    {
+        using P = std::pair<int,std::string>;
+        P ia[] = {{0,"0"}, {1,"1"}, {2,"2"}, {3,"3"}, {4,"4"}};
+        P *i = ranges::replace(ia, 2, std::make_pair(42,"42"), &std::pair<int,std::string>::first);
+        CHECK(ia[0] == P{0,"0"});
+        CHECK(ia[1] == P{1,"1"});
+        CHECK(ia[2] == P{42,"42"});
+        CHECK(ia[3] == P{3,"3"});
+        CHECK(ia[4] == P{4,"4"});
+        CHECK(i == ranges::end(ia));
+    }
+
+    // test rvalue ranges
+    {
+        using P = std::pair<int,std::string>;
+        P ia[] = {{0,"0"}, {1,"1"}, {2,"2"}, {3,"3"}, {4,"4"}};
+        auto i = ranges::replace(std::move(ia), 2, std::make_pair(42,"42"), &std::pair<int,std::string>::first);
+#ifndef RANGES_WORKAROUND_MSVC_573728
+        CHECK(::is_dangling(i));
+#endif // RANGES_WORKAROUND_MSVC_573728
+        CHECK(ia[0] == P{0,"0"});
+        CHECK(ia[1] == P{1,"1"});
+        CHECK(ia[2] == P{42,"42"});
+        CHECK(ia[3] == P{3,"3"});
+        CHECK(ia[4] == P{4,"4"});
+    }
+
+    {
+        using P = std::pair<int,std::string>;
+        std::vector<P> ia{{0,"0"}, {1,"1"}, {2,"2"}, {3,"3"}, {4,"4"}};
+        auto i = ranges::replace(std::move(ia), 2, std::make_pair(42,"42"), &std::pair<int,std::string>::first);
+        CHECK(::is_dangling(i));
+        CHECK(ia[0] == P{0,"0"});
+        CHECK(ia[1] == P{1,"1"});
+        CHECK(ia[2] == P{42,"42"});
+        CHECK(ia[3] == P{3,"3"});
+        CHECK(ia[4] == P{4,"4"});
+    }
+
+    {
+        STATIC_CHECK(test_constexpr());
+    }
+
+    return ::test_result();
+}