pstl/test/std/algorithms/alg.nonmodifying/equal.pass.cpp

   1 // -*- C++ -*-
   2 //===-- equal.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 // UNSUPPORTED: c++03, c++11, c++14
  11
  12 #include "support/pstl_test_config.h"
  13
  14 #include <execution>
  15 #include <algorithm>
  16
  17 #include "support/utils.h"
  18
  19 using namespace TestUtils;
  20
  21 #define CPP14_ENABLED 0
  22
  23 struct UserType
  24 {
  25     size_t key;
  26     float32_t f;
  27     float64_t d;
  28     int32_t i;
  29
  30     bool
  31     operator()(UserType a, UserType b)
  32     {
  33         return a.key < b.key;
  34     }
  35     bool
  36     operator<(UserType a)
  37     {
  38         return a.key < key;
  39     }
  40     bool
  41     operator>=(UserType a)
  42     {
  43         return a.key <= key;
  44     }
  45     bool
  46     operator<=(UserType a)
  47     {
  48         return a.key >= key;
  49     }
  50     bool
  51     operator==(UserType a)
  52     {
  53         return a.key == key;
  54     }
  55     bool
  56     operator==(UserType a) const
  57     {
  58         return a.key == key;
  59     }
  60     bool
  61     operator!=(UserType a)
  62     {
  63         return a.key != key;
  64     }
  65     UserType operator!()
  66     {
  67         UserType tmp;
  68         tmp.key = !key;
  69         return tmp;
  70     }
  71     friend std::ostream&
  72     operator<<(std::ostream& stream, const UserType a)
  73     {
  74         stream << a.key;
  75         return stream;
  76     }
  77
  78     UserType() : key(-1), f(0.0f), d(0.0), i(0) {}
  79     UserType(size_t Number) : key(Number), f(0.0f), d(0.0), i(0) {}
  80     UserType&
  81     operator=(const UserType& other)
  82     {
  83         key = other.key;
  84         return *this;
  85     }
  86     UserType(const UserType& other) : key(other.key), f(other.f), d(other.d), i(other.i) {}
  87     UserType(UserType&& other) : key(other.key), f(other.f), d(other.d), i(other.i)
  88     {
  89         other.key = -1;
  90         other.f = 0.0f;
  91         other.d = 0.0;
  92         other.i = 0;
  93     }
  94 };
  95
  96 struct test_one_policy
  97 {
  98     template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
  99     void
 100     operator()(ExecutionPolicy&& exec, Iterator1 first1, Iterator1 last1, Iterator2 first2, bool is_true_equal)
 101     {
 102         using namespace std;
 103
 104         auto expected = equal(first1, last1, first2);
 105         auto actual = equal(exec, first1, last1, first2);
 106         EXPECT_EQ(expected, actual, "result for equal for random-access iterator, checking against std::equal()");
 107
 108         // testing bool
 109         EXPECT_TRUE(is_true_equal == actual, "result for equal for random-access iterator, bool");
 110
 111 //add C++14 equal symantics tests
 112 //add more cases for inCopy size less than in
 113 #if CPP14_ENABLED
 114         auto actualr14 = std::equal(in.cbegin(), in.cend(), inCopy.cbegin(), inCopy.cend());
 115         EXPECT_EQ(expected, actualr14, "result for equal for random-access iterator");
 116 #endif
 117     }
 118 };
 119
 120 template <typename T>
 121 void
 122 test(size_t bits)
 123 {
 124     for (size_t n = 1; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
 125     {
 126
 127         // Sequence of odd values
 128         Sequence<T> in(n, [bits](size_t k) { return T(2 * HashBits(k, bits - 1) ^ 1); });
 129         Sequence<T> inCopy(in);
 130
 131         invoke_on_all_policies(test_one_policy(), in.begin(), in.end(), inCopy.begin(), true);
 132         invoke_on_all_policies(test_one_policy(), in.cbegin(), in.cend(), inCopy.cbegin(), true);
 133
 134         // testing bool !equal()
 135         inCopy[0] = !inCopy[0];
 136         invoke_on_all_policies(test_one_policy(), in.begin(), in.end(), inCopy.begin(), false);
 137         invoke_on_all_policies(test_one_policy(), in.cbegin(), in.cend(), inCopy.cbegin(), false);
 138     }
 139 }
 140
 141 template <typename T>
 142 struct test_non_const
 143 {
 144     template <typename Policy, typename FirstIterator, typename SecondInterator>
 145     void
 146     operator()(Policy&& exec, FirstIterator first_iter, SecondInterator second_iter)
 147     {
 148         equal(exec, first_iter, first_iter, second_iter, second_iter, non_const(std::equal_to<T>()));
 149     }
 150 };
 151
 152 int
 153 main()
 154 {
 155
 156     test<int32_t>(8 * sizeof(int32_t));
 157     test<uint16_t>(8 * sizeof(uint16_t));
 158     test<float64_t>(53);
 159 #if !defined(_PSTL_ICC_16_17_TEST_REDUCTION_BOOL_TYPE_RELEASE_64_BROKEN)
 160     test<bool>(1);
 161 #endif
 162     test<UserType>(256);
 163
 164     test_algo_basic_double<int32_t>(run_for_rnd_fw<test_non_const<int32_t>>());
 165
 166     std::cout << done() << std::endl;
 167     return 0;
 168 }