File: pstl.for_each.pass.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (55 lines) | stat: -rw-r--r-- 1,714 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
//===----------------------------------------------------------------------===//
//
// 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 ForwardIterator, class Function>
//   void for_each(ExecutionPolicy&& exec,
//                 ForwardIterator first, ForwardIterator last,
//                 Function f);

#include <algorithm>
#include <atomic>
#include <cassert>
#include <vector>

#include "test_macros.h"
#include "test_execution_policies.h"
#include "test_iterators.h"

EXECUTION_POLICY_SFINAE_TEST(for_each);

static_assert(sfinae_test_for_each<int, int*, int*, bool (*)(int)>);
static_assert(!sfinae_test_for_each<std::execution::parallel_policy, int*, int*, bool (*)(int)>);

template <class Iter>
struct Test {
  template <class Policy>
  void operator()(Policy&& policy) {
    int sizes[] = {0, 1, 2, 100};
    for (auto size : sizes) {
      std::vector<int> a(size);
      std::vector<Bool> called(size);
      std::for_each(policy, Iter(std::data(a)), Iter(std::data(a) + std::size(a)), [&](int& v) {
        assert(!called[&v - a.data()]);
        called[&v - a.data()] = true;
      });
      assert(std::all_of(std::begin(called), std::end(called), [](bool b) { return b; }));
    }
  }
};

int main(int, char**) {
  types::for_each(types::forward_iterator_list<int*>{}, TestIteratorWithPolicies<Test>{});

  return 0;
}