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
11// <sstream>
12
13// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
14// class basic_stringbuf
15
16// basic_stringbuf(ios_base::openmode which, const Allocator& a);
17
18#include <sstream>
19#include <cassert>
20
21#include "test_allocator.h"
22#include "test_macros.h"
23
24template <class CharT>
25static void test() {
26 const test_allocator<CharT> a(2);
27 const std::basic_stringbuf<CharT, std::char_traits<CharT>, test_allocator<CharT>> buf(std::ios_base::in, a);
28 assert(buf.get_allocator() == a);
29 assert(buf.view().empty());
30}
31
32int main(int, char**) {
33 test<char>();
34#ifndef TEST_HAS_NO_WIDE_CHARACTERS
35 test<wchar_t>();
36#endif
37 return 0;
38}
39

source code of libcxx/test/std/input.output/string.streams/stringbuf/stringbuf.cons/mode.alloc.pass.cpp