__algorithm/pstl_backends/cpu_backends/for_each.h
__algorithm/pstl_backends/cpu_backends/serial.h
__algorithm/pstl_backends/cpu_backends/transform.h
+ __algorithm/pstl_copy.h
__algorithm/pstl_fill.h
__algorithm/pstl_find.h
__algorithm/pstl_for_each.h
--- /dev/null
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___ALGORITHM_PSTL_COPY_H
+#define _LIBCPP___ALGORITHM_PSTL_COPY_H
+
+#include <__algorithm/copy_n.h>
+#include <__algorithm/pstl_transform.h>
+#include <__config>
+#include <__functional/identity.h>
+#include <__iterator/iterator_traits.h>
+#include <__type_traits/is_constant_evaluated.h>
+#include <__type_traits/is_execution_policy.h>
+#include <__type_traits/is_trivially_copyable.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+// TODO: Use the std::copy/move shenanigans to forward to std::memmove
+
+template <class _ExecutionPolicy,
+ class _ForwardIterator,
+ class _ForwardOutIterator,
+ enable_if_t<is_execution_policy_v<__remove_cvref_t<_ExecutionPolicy>>, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator
+copy(_ExecutionPolicy&& __policy, _ForwardIterator __first, _ForwardIterator __last, _ForwardOutIterator __result) {
+ return std::transform(__policy, __first, __last, __result, __identity());
+}
+
+template <class _ExecutionPolicy,
+ class _ForwardIterator,
+ class _ForwardOutIterator,
+ class _Size,
+ enable_if_t<is_execution_policy_v<__remove_cvref_t<_ExecutionPolicy>>, int> = 0>
+_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator
+copy_n(_ExecutionPolicy&& __policy, _ForwardIterator __first, _Size __n, _ForwardOutIterator __result) {
+ if constexpr (__is_cpp17_random_access_iterator<_ForwardIterator>::value)
+ return std::copy(__policy, __first, __first + __n, __result);
+ else
+ return std::copy_n(__first, __n, __result);
+}
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
+
+#endif // _LIBCPP___ALGORITHM_PSTL_COPY_H
// [alg.copy]
-template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2>
-__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
-copy(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result);
-
-template <class _ExecutionPolicy, class _ForwardIterator1, class _Size, class _ForwardIterator2>
-__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
-copy_n(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _Size __n, _ForwardIterator2 __result);
-
template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Predicate>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
copy_if(_ExecutionPolicy&& __exec,
// [alg.copy]
-template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2>
-__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
-copy(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _ForwardIterator1 __last, _ForwardIterator2 __result) {
- auto __dispatch_tag = __pstl::__internal::__select_backend(__exec, __first, __result);
-
- using __is_vector = typename decltype(__dispatch_tag)::__is_vector;
-
- return __pstl::__internal::__pattern_walk2_brick(
- __dispatch_tag,
- std::forward<_ExecutionPolicy>(__exec),
- __first,
- __last,
- __result,
- [](_ForwardIterator1 __begin, _ForwardIterator1 __end, _ForwardIterator2 __res) {
- return __pstl::__internal::__brick_copy(__begin, __end, __res, __is_vector{});
- });
-}
-
-template <class _ExecutionPolicy, class _ForwardIterator1, class _Size, class _ForwardIterator2>
-__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
-copy_n(_ExecutionPolicy&& __exec, _ForwardIterator1 __first, _Size __n, _ForwardIterator2 __result) {
- auto __dispatch_tag = __pstl::__internal::__select_backend(__exec, __first, __result);
-
- using __is_vector = typename decltype(__dispatch_tag)::__is_vector;
-
- return __pstl::__internal::__pattern_walk2_brick_n(
- __dispatch_tag,
- std::forward<_ExecutionPolicy>(__exec),
- __first,
- __n,
- __result,
- [](_ForwardIterator1 __begin, _Size __sz, _ForwardIterator2 __res) {
- return __pstl::__internal::__brick_copy_n(__begin, __sz, __res, __is_vector{});
- });
-}
-
template <class _ExecutionPolicy, class _ForwardIterator1, class _ForwardIterator2, class _Predicate>
__pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator2>
copy_if(_ExecutionPolicy&& __exec,
#include <__algorithm/pop_heap.h>
#include <__algorithm/prev_permutation.h>
#include <__algorithm/pstl_any_all_none_of.h>
+#include <__algorithm/pstl_copy.h>
#include <__algorithm/pstl_fill.h>
#include <__algorithm/pstl_find.h>
#include <__algorithm/pstl_for_each.h>
--- /dev/null
+//===----------------------------------------------------------------------===//
+//
+// 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
+
+// REQUIRES: with-pstl
+
+// <algorithm>
+
+// template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2>
+// ForwardIterator2 copy(ExecutionPolicy&& policy,
+// ForwardIterator1 first, ForwardIterator1 last,
+// ForwardIterator2 result);
+
+#include <algorithm>
+#include <vector>
+
+#include "test_macros.h"
+#include "test_execution_policies.h"
+#include "test_iterators.h"
+
+EXECUTION_POLICY_SFINAE_TEST(copy);
+
+static_assert(sfinae_test_copy<int, int*, int*, bool (*)(int)>);
+static_assert(!sfinae_test_copy<std::execution::parallel_policy, int*, int*, int>);
+
+template <class Iter1, class Iter2>
+struct TestInt {
+ template <class Policy>
+ void operator()(Policy&& policy) {
+ // simple test
+ for (const int size : {0, 1, 2, 100, 350}) {
+ std::vector<int> a(size);
+ for (int i = 0; i != size; ++i)
+ a[i] = i + 1;
+
+ std::vector<int> out(std::size(a));
+ decltype(auto) ret =
+ std::copy(policy, Iter1(std::data(a)), Iter1(std::data(a) + std::size(a)), Iter2(std::data(out)));
+ static_assert(std::is_same_v<decltype(ret), Iter2>);
+ assert(base(ret) == std::data(out) + std::size(out));
+ for (int i = 0; i != size; ++i)
+ assert(out[i] == i + 1);
+ }
+ }
+};
+
+struct CopiedToTester {
+ bool copied_to = false;
+ CopiedToTester() = default;
+ CopiedToTester(const CopiedToTester&) {}
+ CopiedToTester& operator=(const CopiedToTester&) {
+ assert(!copied_to);
+ copied_to = true;
+ return *this;
+ }
+ ~CopiedToTester() = default;
+};
+
+template <class Iter1, class Iter2>
+struct TestNonTrivial {
+ template <class Policy>
+ void operator()(Policy&& policy) {
+ // simple test
+ for (const int size : {0, 1, 2, 100, 350}) {
+ std::vector<CopiedToTester> a(size);
+
+ std::vector<CopiedToTester> out(std::size(a));
+ auto ret = std::copy(policy, Iter1(std::data(a)), Iter1(std::data(a) + std::size(a)), Iter2(std::data(out)));
+ assert(base(ret) == std::data(out) + std::size(out));
+ assert(std::all_of(std::begin(out), std::end(out), [](CopiedToTester& t) { return t.copied_to; }));
+ assert(std::none_of(std::begin(a), std::end(a), [](CopiedToTester& t) { return t.copied_to; }));
+ }
+ }
+};
+
+struct TestIteratorsNonTrivial {
+ template <class Iter2>
+ void operator()() {}
+};
+
+int main(int, char**) {
+ types::for_each(types::forward_iterator_list<int*>{}, types::apply_type_identity{[](auto v) {
+ using Iter = typename decltype(v)::type;
+ types::for_each(
+ types::forward_iterator_list<int*>{},
+ TestIteratorWithPolicies< types::partial_instantiation<TestInt, Iter>::template apply>{});
+ }});
+
+ types::for_each(
+ types::forward_iterator_list<CopiedToTester*>{}, types::apply_type_identity{[](auto v) {
+ using Iter = typename decltype(v)::type;
+ types::for_each(
+ types::forward_iterator_list<CopiedToTester*>{},
+ TestIteratorWithPolicies< types::partial_instantiation<TestNonTrivial, Iter>::template apply>{});
+ }});
+
+ return 0;
+}
--- /dev/null
+//===----------------------------------------------------------------------===//
+//
+// 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
+
+// REQUIRES: with-pstl
+
+// <algorithm>
+
+// template<class ExecutionPolicy, class ForwardIterator1, class Size, class ForwardIterator2>
+// ForwardIterator2 copy_n(ExecutionPolicy&& exec,
+// ForwardIterator1 first, Size n,
+// ForwardIterator2 result);
+
+#include <algorithm>
+#include <vector>
+
+#include "test_macros.h"
+#include "test_execution_policies.h"
+#include "test_iterators.h"
+
+EXECUTION_POLICY_SFINAE_TEST(copy_n);
+
+static_assert(sfinae_test_copy_n<int, int*, int*, bool (*)(int)>);
+static_assert(!sfinae_test_copy_n<std::execution::parallel_policy, int*, int*, int>);
+
+template <class Iter1, class Iter2>
+struct TestInt {
+ template <class Policy>
+ void operator()(Policy&& policy) {
+ // simple test
+ for (const int size : {0, 1, 2, 100, 350}) {
+ std::vector<int> a(size);
+ for (int i = 0; i != size; ++i)
+ a[i] = i + 1;
+
+ std::vector<int> out(std::size(a));
+ decltype(auto) ret = std::copy_n(policy, Iter1(std::data(a)), std::size(a), Iter2(std::data(out)));
+ static_assert(std::is_same_v<decltype(ret), Iter2>);
+ assert(base(ret) == std::data(out) + std::size(out));
+ for (int i = 0; i != size; ++i)
+ assert(out[i] == i + 1);
+ }
+ }
+};
+
+struct TestIteratorsInt {
+ template <class Iter2>
+ void operator()() {
+ types::for_each(types::forward_iterator_list<int*>{},
+ TestIteratorWithPolicies<types::partial_instantiation<TestInt, Iter2>::template apply>{});
+ }
+};
+
+struct CopiedToTester {
+ bool copied_to = false;
+ CopiedToTester() = default;
+ CopiedToTester(const CopiedToTester&) {}
+ CopiedToTester& operator=(const CopiedToTester&) {
+ assert(!copied_to);
+ copied_to = true;
+ return *this;
+ }
+ ~CopiedToTester() = default;
+};
+
+template <class Iter1, class Iter2>
+struct TestNonTrivial {
+ template <class Policy>
+ void operator()(Policy&& policy) {
+ // simple test
+ for (const int size : {0, 1, 2, 100, 350}) {
+ std::vector<CopiedToTester> a(size);
+
+ std::vector<CopiedToTester> out(std::size(a));
+ auto ret = std::copy_n(policy, Iter1(std::data(a)), std::size(a), Iter2(std::data(out)));
+ assert(base(ret) == std::data(out) + std::size(out));
+ assert(std::all_of(std::begin(out), std::end(out), [](CopiedToTester& t) { return t.copied_to; }));
+ assert(std::none_of(std::begin(a), std::end(a), [](CopiedToTester& t) { return t.copied_to; }));
+ }
+ }
+};
+
+struct TestIteratorsNonTrivial {
+ template <class Iter2>
+ void operator()() {
+ types::for_each(types::forward_iterator_list<CopiedToTester*>{},
+ TestIteratorWithPolicies<types::partial_instantiation<TestNonTrivial, Iter2>::template apply>{});
+ }
+};
+
+int main(int, char**) {
+ types::for_each(types::forward_iterator_list<int*>{}, TestIteratorsInt{});
+ types::for_each(types::forward_iterator_list<CopiedToTester*>{}, TestIteratorsNonTrivial{});
+
+ return 0;
+}
projects / platform / upstream / llvm.git / commitdiff