1 // -*- C++ -*- 2 //===-- replace_copy.pass.cpp ---------------------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 // Tests for replace_copy and replace_copy_if 11 12 #include "support/pstl_test_config.h" 13 14 #ifdef PSTL_STANDALONE_TESTS 15 #include "pstl/execution" 16 #include "pstl/algorithm" 17 #else 18 #include <execution> 19 #include <algorithm> 20 #endif // PSTL_STANDALONE_TESTS 21 22 #include "support/utils.h" 23 24 using namespace TestUtils; 25 26 struct test_replace_copy 27 { 28 template <typename Policy, typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size, 29 typename Predicate, typename T> 30 void 31 operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first, 32 OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size n, 33 Predicate pred, const T& old_value, const T& new_value, T trash) 34 { 35 // Cleaning 36 std::fill_n(expected_first, n, trash); 37 std::fill_n(out_first, n, trash); 38 // Run replace_copy 39 auto i = std::replace_copy(first, last, expected_first, old_value, new_value); 40 auto k = std::replace_copy(exec, first, last, out_first, old_value, new_value); 41 EXPECT_EQ_N(expected_first, out_first, n, "wrong replace_copy effect"); 42 EXPECT_TRUE(out_last == k, "wrong return value from replace_copy"); 43 44 // Cleaning 45 std::fill_n(expected_first, n, trash); 46 std::fill_n(out_first, n, trash); 47 // Run replace_copy_if 48 i = replace_copy_if(first, last, expected_first, pred, new_value); 49 k = replace_copy_if(exec, first, last, out_first, pred, new_value); 50 EXPECT_EQ_N(expected_first, out_first, n, "wrong replace_copy_if effect"); 51 EXPECT_TRUE(out_last == k, "wrong return value from replace_copy_if"); 52 } 53 }; 54 55 template <typename T, typename Convert, typename Predicate> 56 void 57 test(T trash, const T& old_value, const T& new_value, Predicate pred, Convert convert) 58 { 59 // Try sequences of various lengths. 60 for (size_t n = 0; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n)) 61 { 62 Sequence<T> in(n, [&](size_t k) -> T { return convert(n ^ k); }); 63 Sequence<T> out(n, [=](size_t) { return trash; }); 64 Sequence<T> expected(n, [=](size_t) { return trash; }); 65 66 invoke_on_all_policies(test_replace_copy(), in.begin(), in.end(), out.begin(), out.end(), expected.begin(), 67 expected.end(), out.size(), pred, old_value, new_value, trash); 68 invoke_on_all_policies(test_replace_copy(), in.cbegin(), in.cend(), out.begin(), out.end(), expected.begin(), 69 expected.end(), out.size(), pred, old_value, new_value, trash); 70 } 71 } 72 73 template <typename T> 74 struct test_non_const 75 { 76 template <typename Policy, typename InputIterator, typename OutputInterator> 77 void 78 operator()(Policy&& exec, InputIterator input_iter, OutputInterator out_iter) 79 { 80 auto is_even = [&](float64_t v) { 81 uint32_t i = (uint32_t)v; 82 return i % 2 == 0; 83 }; 84 85 invoke_if(exec, [&]() { replace_copy_if(exec, input_iter, input_iter, out_iter, non_const(is_even), T(0)); }); 86 } 87 }; 88 89 int32_t 90 main() 91 { 92 93 test<float64_t>(-666.0, 8.5, 0.33, [](const float64_t& x) { return x * x <= 1024; }, 94 [](size_t j) { return ((j + 1) % 7 & 2) != 0 ? 8.5 : float64_t(j % 32 + j); }); 95 96 test<int32_t>(-666, 42, 99, [](const int32_t& x) { return x != 42; }, 97 [](size_t j) { return ((j + 1) % 5 & 2) != 0 ? 42 : -1 - int32_t(j); }); 98 99 #if !__PSTL_ICC_17_TEST_MAC_RELEASE_32_BROKEN 100 test<Number>(Number(42, OddTag()), Number(2001, OddTag()), Number(2017, OddTag()), IsMultiple(3, OddTag()), 101 [](int32_t j) { return ((j + 1) % 3 & 2) != 0 ? Number(2001, OddTag()) : Number(j, OddTag()); }); 102 #endif 103 104 test_algo_basic_double<int32_t>(run_for_rnd_fw<test_non_const<int32_t>>()); 105 106 std::cout << done() << std::endl; 107 return 0; 108 } 109