File: without_buffer.pass.cpp

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (40 lines) | stat: -rw-r--r-- 1,286 bytes parent folder | download | duplicates (13)
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
//===----------------------------------------------------------------------===//
//
// 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
// TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed
// UNSUPPORTED: availability-pmr-missing

// <memory_resource>

// class monotonic_buffer_resource

#include <memory_resource>
#include <cassert>

#include "count_new.h"

int main(int, char**) {
  // Constructing a monotonic_buffer_resource should not cause allocations
  // by itself; the resource should wait to allocate until an allocation is
  // requested.

  globalMemCounter.reset();
  std::pmr::set_default_resource(std::pmr::new_delete_resource());

  std::pmr::monotonic_buffer_resource r1;
  assert(globalMemCounter.checkNewCalledEq(0));

  std::pmr::monotonic_buffer_resource r2(1024);
  assert(globalMemCounter.checkNewCalledEq(0));

  std::pmr::monotonic_buffer_resource r3(1024, std::pmr::new_delete_resource());
  assert(globalMemCounter.checkNewCalledEq(0));

  return 0;
}