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_ostringstream
15
16// template <class SAlloc>
17// void str(const basic_string<charT, traits, SAlloc>& s);
18
19#include <sstream>
20#include <cassert>
21
22#include "make_string.h"
23#include "test_allocator.h"
24#include "test_macros.h"
25
26#define STR(S) MAKE_STRING(CharT, S)
27
28template <class CharT>
29static void test() {
30 {
31 const test_allocator<CharT> a(6);
32 const std::basic_string<CharT, std::char_traits<CharT>, test_allocator<CharT>> s(STR("testing"), a);
33 std::basic_ostringstream<CharT> ss;
34 ss.str(s);
35 assert(ss.str() == STR("testing"));
36 }
37}
38
39int main(int, char**) {
40 test<char>();
41#ifndef TEST_HAS_NO_WIDE_CHARACTERS
42 test<wchar_t>();
43#endif
44 return 0;
45}
46

source code of libcxx/test/std/input.output/string.streams/ostringstream/ostringstream.members/str.string-alloc.pass.cpp