File: advance.pass.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (58 lines) | stat: -rw-r--r-- 1,755 bytes parent folder | download
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
56
57
58
//===----------------------------------------------------------------------===//
//
// 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, c++17
// UNSUPPORTED: libcpp-has-no-incomplete-ranges

// class std::ranges::subrange;

#include <ranges>

#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
#include "types.h"

constexpr bool test() {
  std::ranges::subrange<int*> a(globalBuff, globalBuff + 8, 8);
  auto a1 = a.next();
  assert(a1.begin() == globalBuff + 1);
  assert(a1.size() == 7);
  auto a5 = a.next(5);
  assert(a5.begin() == globalBuff + 5);
  assert(a5.size() == 3);
  auto a4 = a5.prev();
  assert(a4.begin() == globalBuff + 4);
  assert(a4.size() == 4);

  std::ranges::subrange<InputIter, sentinel_wrapper<InputIter>> b(InputIter(globalBuff), sentinel_wrapper(InputIter(globalBuff + 8)));
  auto b1 = std::move(b).next();
  assert(base(b1.begin()) == globalBuff + 1);

  std::ranges::subrange<BidirIter> c(BidirIter(globalBuff + 4), BidirIter(globalBuff + 8));
  auto c1 = c.prev();
  assert(base(c1.begin()) == globalBuff + 3);
  auto c2 = c.prev(4);
  assert(base(c2.begin()) == globalBuff);

  std::ranges::subrange<BidirIter> d(BidirIter(globalBuff + 4), BidirIter(globalBuff + 8));
  auto d1 = d.advance(4);
  assert(base(d1.begin()) == globalBuff + 8);
  assert(d1.empty());
  auto d2 = d1.advance(-4);
  assert(base(d2.begin()) == globalBuff + 4);

  return true;
}

int main(int, char**) {
  test();
  static_assert(test());

  return 0;
}