File: iterators.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 (85 lines) | stat: -rw-r--r-- 2,220 bytes parent folder | download | duplicates (7)
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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
//===----------------------------------------------------------------------===//
//
// 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: !stdlib=libc++ && (c++03 || c++11 || c++14)

// <string_view>

// class iterator

#include <cassert>
#include <concepts>
#include <iterator>
#include <string_view>

#include "test_macros.h"
#include "make_string.h"

template <class CharT>
TEST_CONSTEXPR_CXX14 void test_type() {
  using C                  = std::basic_string_view<CharT>;
  typename C::iterator ii1 = typename C::iterator(), ii2 = typename C::iterator();
  typename C::iterator ii4       = ii1;
  typename C::const_iterator cii = typename C::const_iterator();
  assert(ii1 == ii2);
  assert(ii1 == ii4);
  assert(ii1 == cii);

  assert(!(ii1 != ii2));
  assert(!(ii1 != cii));

#if TEST_STD_VER >= 17
  C c = MAKE_STRING_VIEW(CharT, "abc");
  assert(c.begin() == std::begin(c));
  assert(c.rbegin() == std::rbegin(c));
  assert(c.cbegin() == std::cbegin(c));
  assert(c.crbegin() == std::crbegin(c));

  assert(c.end() == std::end(c));
  assert(c.rend() == std::rend(c));
  assert(c.cend() == std::cend(c));
  assert(c.crend() == std::crend(c));

  assert(std::begin(c) != std::end(c));
  assert(std::rbegin(c) != std::rend(c));
  assert(std::cbegin(c) != std::cend(c));
  assert(std::crbegin(c) != std::crend(c));
#endif

#if TEST_STD_VER >= 20
  // P1614 + LWG3352
  std::same_as<std::strong_ordering> decltype(auto) r1 = ii1 <=> ii2;
  assert(r1 == std::strong_ordering::equal);

  std::same_as<std::strong_ordering> decltype(auto) r2 = ii1 <=> ii2;
  assert(r2 == std::strong_ordering::equal);
#endif
}

TEST_CONSTEXPR_CXX14 bool test() {
  test_type<char>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
  test_type<wchar_t>();
#endif
#ifndef TEST_HAS_NO_CHAR8_T
  test_type<char8_t>();
#endif
  test_type<char16_t>();
  test_type<char32_t>();

  return true;
}

int main(int, char**) {
  test();
#if TEST_STD_VER >= 14
  static_assert(test(), "");
#endif

  return 0;
}