| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14 |
| |
| // UNSUPPORTED: libcpp-has-no-incomplete-pstl |
| |
| // <algorithm> |
| |
| // template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> |
| // bool equal(ExecutionPolicy&& exec, |
| // ForwardIterator1 first1, ForwardIterator1 last1, |
| // ForwardIterator2 first2); |
| // |
| // template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, |
| // class BinaryPredicate> |
| // bool equal(ExecutionPolicy&& exec, |
| // ForwardIterator1 first1, ForwardIterator1 last1, |
| // ForwardIterator2 first2, BinaryPredicate pred); |
| // |
| // template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> |
| // bool equal(ExecutionPolicy&& exec, |
| // ForwardIterator1 first1, ForwardIterator1 last1, |
| // ForwardIterator2 first2, ForwardIterator2 last2); |
| // |
| // template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, |
| // class BinaryPredicate> |
| // bool equal(ExecutionPolicy&& exec, |
| // ForwardIterator1 first1, ForwardIterator1 last1, |
| // ForwardIterator2 first2, ForwardIterator2 last2, |
| // BinaryPredicate pred); |
| |
| #include <algorithm> |
| #include <cassert> |
| #include <iterator> |
| |
| #include "test_execution_policies.h" |
| #include "test_iterators.h" |
| #include "test_macros.h" |
| |
| template <class It1, class It2> |
| struct Test { |
| template <class Policy> |
| void operator()(Policy&& policy) { |
| { // 3 iter overloads |
| // check with equal ranges |
| { |
| int a[] = {1, 2, 3, 4}; |
| int b[] = {1, 2, 3, 4}; |
| assert(std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)))); |
| } |
| |
| // check with an empty range |
| { |
| int a[] = {999}; |
| int b[] = {1, 2, 3}; |
| assert(std::equal(policy, It1(std::begin(a)), It1(std::begin(a)), It2(std::begin(b)))); |
| } |
| |
| // check with different ranges |
| { |
| int a[] = {1, 2, 3}; |
| int b[] = {3, 2, 1}; |
| assert(!std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)))); |
| } |
| |
| // check that the predicate is used |
| { |
| int a[] = {2, 4, 6, 8, 10}; |
| int b[] = {12, 14, 16, 18, 20}; |
| assert(std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), [](int lhs, int rhs) { |
| return lhs % 2 == rhs % 2; |
| })); |
| } |
| } |
| |
| { // 4 iter overloads |
| // check with equal ranges of equal size |
| { |
| int a[] = {1, 2, 3, 4}; |
| int b[] = {1, 2, 3, 4}; |
| assert(std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), It2(std::end(b)))); |
| } |
| |
| // check with unequal ranges of equal size |
| { |
| int a[] = {1, 2, 3, 4}; |
| int b[] = {4, 3, 2, 1}; |
| assert(!std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), It2(std::end(b)))); |
| } |
| |
| // check with equal ranges of unequal size |
| { |
| { |
| int a[] = {1, 2, 3, 4}; |
| int b[] = {1, 2, 3, 4, 5}; |
| assert(!std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), It2(std::end(b)))); |
| } |
| { |
| int a[] = {1, 2, 3, 4, 5}; |
| int b[] = {1, 2, 3, 4}; |
| assert(!std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), It2(std::end(b)))); |
| } |
| } |
| |
| // check empty ranges |
| { |
| // empty/empty |
| { |
| int a[] = {888}; |
| int b[] = {999}; |
| assert(std::equal(policy, It1(std::begin(a)), It1(std::begin(a)), It2(std::begin(b)), It2(std::begin(b)))); |
| } |
| // empty/non-empty |
| { |
| int a[] = {999}; |
| int b[] = {999}; |
| assert(!std::equal(policy, It1(std::begin(a)), It1(std::begin(a)), It2(std::begin(b)), It2(std::end(b)))); |
| } |
| // non-empty/empty |
| { |
| int a[] = {999}; |
| int b[] = {999}; |
| assert(!std::equal(policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), It2(std::begin(b)))); |
| } |
| } |
| |
| // check that the predicate is used |
| { |
| int a[] = {2, 4, 6, 8, 10}; |
| int b[] = {12, 14, 16, 18, 20}; |
| assert(std::equal( |
| policy, It1(std::begin(a)), It1(std::end(a)), It2(std::begin(b)), It2(std::end(b)), [](int lhs, int rhs) { |
| return lhs % 2 == rhs % 2; |
| })); |
| } |
| } |
| } |
| }; |
| |
| int main(int, char**) { |
| types::for_each(types::forward_iterator_list<int*>{}, types::apply_type_identity{[](auto v) { |
| using It1 = typename decltype(v)::type; |
| types::for_each( |
| types::forward_iterator_list<int*>{}, |
| TestIteratorWithPolicies<types::partial_instantiation<Test, It1>::template apply>{}); |
| }}); |
| return 0; |
| } |