1 // -*- C++ -*- 2 //===-- replace.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 #include "support/pstl_test_config.h" 11 12 #include <execution> 13 #include <algorithm> 14 15 #include "support/utils.h" 16 17 using namespace TestUtils; 18 19 // This class is needed to check the self-copying 20 struct copy_int 21 { 22 int32_t value; 23 int32_t copied_times = 0; 24 explicit copy_int(int32_t val = 0) { value = val; } 25 26 copy_int& 27 operator=(const copy_int& other) 28 { 29 if (&other == this) 30 copied_times++; 31 else 32 { 33 value = other.value; 34 copied_times = other.copied_times; 35 } 36 return *this; 37 } 38 39 bool 40 operator==(const copy_int& other) const 41 { 42 return (value == other.value); 43 } 44 }; 45 46 template <typename Iterator> 47 struct test_one_policy 48 { 49 std::size_t len; 50 Iterator data_b; 51 Iterator data_e; 52 test_one_policy(Iterator data_, std::size_t len_) 53 { 54 len = len_; 55 data_b = data_; 56 data_e = std::next(data_b, len); 57 } 58 template <typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename T, typename Predicate> 59 void 60 operator()(ExecutionPolicy&& exec, Iterator1 expected_b, Iterator1 expected_e, Iterator2 actual_b, 61 Iterator2 actual_e, Predicate pred, const T& value, const T& old_value) 62 { 63 using namespace std; 64 65 copy(data_b, data_e, expected_b); 66 copy(data_b, data_e, actual_b); 67 68 replace(expected_b, expected_e, old_value, value); 69 replace(exec, actual_b, actual_e, old_value, value); 70 71 EXPECT_TRUE((check<T, Iterator2>(actual_b, actual_e)), "wrong result of self assignment check"); 72 EXPECT_TRUE(equal(expected_b, expected_e, actual_b), "wrong result of replace"); 73 74 copy(data_b, data_e, expected_b); 75 copy(data_b, data_e, actual_b); 76 77 replace_if(expected_b, expected_e, pred, value); 78 replace_if(exec, actual_b, actual_e, pred, value); 79 EXPECT_TRUE(equal(expected_b, expected_e, actual_b), "wrong result of replace_if"); 80 } 81 82 template <typename T, typename Iterator1> 83 bool 84 check(Iterator1 b, Iterator1 e) 85 { 86 return true; 87 } 88 89 template <typename T, typename Iterator1> 90 typename std::enable_if<std::is_same<T, copy_int>::value, bool>::type_t 91 check(Iterator1 b, Iterator1 e) 92 { 93 return std::all_of(b, e, [](const copy_int& elem) { return elem.copied_times == 0; }); 94 } 95 }; 96 97 template <typename T1, typename T2, typename Pred> 98 void 99 test(Pred pred) 100 { 101 typedef typename Sequence<T2>::iterator iterator_type; 102 103 const std::size_t max_len = 100000; 104 105 const T1 value = T1(0); 106 const T1 new_value = T1(666); 107 108 Sequence<T2> expected(max_len); 109 Sequence<T2> actual(max_len); 110 111 Sequence<T2> data(max_len, [&value](std::size_t i) { 112 if (i % 3 == 2) 113 { 114 return T1(i); 115 } 116 else 117 { 118 return value; 119 } 120 }); 121 122 for (std::size_t len = 0; len < max_len; len = len <= 16 ? len + 1 : std::size_t(3.1415 * len)) 123 { 124 test_one_policy<iterator_type> temp(data.begin(), len); 125 126 invoke_on_all_policies(temp, expected.begin(), expected.begin() + len, actual.begin(), actual.begin() + len, 127 pred, new_value, value); 128 } 129 } 130 131 template <typename T> 132 struct test_non_const 133 { 134 template <typename Policy, typename Iterator> 135 void 136 operator()(Policy&& exec, Iterator iter) 137 { 138 auto is_even = [&](float64_t v) { 139 uint32_t i = (uint32_t)v; 140 return i % 2 == 0; 141 }; 142 invoke_if(exec, [&]() { replace_if(exec, iter, iter, non_const(is_even), T(0)); }); 143 } 144 }; 145 146 int32_t 147 main() 148 { 149 test<int32_t, float32_t>(__pstl::__internal::__equal_value<int32_t>(666)); 150 test<uint16_t, uint8_t>([](const uint16_t& elem) { return elem % 3 < 2; }); 151 test<float64_t, int64_t>([](const float64_t& elem) { return elem * elem - 3.5 * elem > 10; }); 152 test<copy_int, copy_int>([](const copy_int& val) { return val.value / 5 > 2; }); 153 154 test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const<int32_t>>()); 155 156 std::cout << done() << std::endl; 157 return 0; 158 } 159