File: reserve.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 (62 lines) | stat: -rw-r--r-- 1,673 bytes parent folder | download | duplicates (8)
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
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// <string>

// void reserve(); // Deprecated in C++20, removed in C++26.

// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_STRING_RESERVE

#include <string>
#include <stdexcept>
#include <cassert>

#include "test_macros.h"
#include "min_allocator.h"
#include "asan_testing.h"

template <class S>
void test(typename S::size_type min_cap, typename S::size_type erased_index) {
  S s(min_cap, 'a');
  s.erase(erased_index);
  assert(s.size() == erased_index);
  assert(s.capacity() >= min_cap); // Check that we really have at least this capacity.

  typename S::size_type old_cap = s.capacity();
  S s0                          = s;
  s.reserve();
  LIBCPP_ASSERT(s.__invariants());
  assert(s == s0);
  assert(s.capacity() <= old_cap);
  assert(s.capacity() >= s.size());
  LIBCPP_ASSERT(is_string_asan_correct(s));
}

template <class S>
void test_string() {
  test<S>(0, 0);
  test<S>(10, 5);
  test<S>(100, 5);
  test<S>(100, 50);
}

bool test() {
  test_string<std::string>();
#if TEST_STD_VER >= 11
  test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
  test_string<std::basic_string<char, std::char_traits<char>, safe_allocator<char>>>();
#endif

  return true;
}

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

  return 0;
}