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//===----------------------------------------------------------------------===//
//
// 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
// <numeric>
// template<class ExecutionPolicy,
// class ForwardIterator, class T,
// class BinaryOperation, class UnaryOperation>
// T transform_reduce(ExecutionPolicy&& exec,
// ForwardIterator first, ForwardIterator last,
// T init, BinaryOperation binary_op, UnaryOperation unary_op);
#include <numeric>
#include <string>
#include <vector>
#include "MoveOnly.h"
#include "test_execution_policies.h"
#include "test_iterators.h"
#include "test_macros.h"
template <class Iter1, class ValueT>
struct Test {
template <class Policy>
void operator()(Policy&& policy) {
for (const auto& pair : {std::pair{0, 34}, {1, 35}, {2, 37}, {100, 5084}, {350, 61459}}) {
auto [size, expected] = pair;
std::vector<int> a(size);
for (int i = 0; i != size; ++i)
a[i] = i;
decltype(auto) ret = std::transform_reduce(
policy,
Iter1(std::data(a)),
Iter1(std::data(a) + std::size(a)),
ValueT(34),
[check = std::string("Banane")](ValueT i, ValueT j) {
assert(check == "Banane"); // ensure that no double-moves happen
return i + j;
},
[check = std::string("Banane")](ValueT i) {
assert(check == "Banane"); // ensure that no double-moves happen
return i + 1;
});
static_assert(std::is_same_v<decltype(ret), ValueT>);
assert(ret == expected);
}
}
};
int main(int, char**) {
types::for_each(types::forward_iterator_list<int*>{}, types::apply_type_identity{[](auto v) {
using Iter2 = typename decltype(v)::type;
types::for_each(
types::type_list<int, MoveOnly>{},
TestIteratorWithPolicies<types::partial_instantiation<Test, Iter2>::template apply>{});
}});
return 0;
}
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