1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03, c++11, c++14, c++17
10// UNSUPPORTED: no-localization
11// UNSUPPORTED: libcpp-has-no-experimental-syncstream
12
13// <syncstream>
14
15// template <class charT, class traits, class Allocator>
16// class basic_syncbuf;
17
18// ~basic_syncbuf();
19
20#include <syncstream>
21#include <cassert>
22
23#include "../helpers.h"
24#include "test_macros.h"
25
26template <class CharT>
27void test() {
28 // We do this because we want to be able to use CharT
29 CharT arr[3] = {'a', 'b', 'c'};
30 CharT* ptr = arr;
31
32 test_buf<CharT> base;
33 const std::allocator<CharT> alloc;
34 {
35 test_syncbuf<CharT> buf(&base, alloc);
36
37 buf._setp(ptr, ptr + 3);
38 assert(base._pptr() == nullptr);
39 // The destructor calls buf.emit();
40 }
41 CharT* pptr = base._pptr();
42 while (pptr) {
43 assert(*pptr++ == *ptr++);
44 }
45}
46
47int main(int, char**) {
48 test<char>();
49#ifndef TEST_HAS_NO_WIDE_CHARACTERS
50 test<wchar_t>();
51#endif
52
53 return 0;
54}
55

source code of libcxx/test/std/input.output/syncstream/syncbuf/syncstream.syncbuf.cons/dtor.pass.cpp