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_stringstream
15 
16 // template <class SAlloc>
17 // explicit basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, ios_base::openmode which = ios_base::out | ios_base::in)
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 #define SV(S) MAKE_STRING_VIEW(CharT, S)
28 
29 template <class CharT>
30 static void test() {
31   {
32     const std::basic_string<CharT> s(STR("testing"));
33     const std::basic_stringstream<CharT, std::char_traits<CharT>, test_allocator<CharT>> ss(s);
34     assert(ss.view() == SV("testing"));
35   }
36   {
37     const std::basic_string<CharT> s(STR("testing"));
38     const std::basic_stringstream<CharT, std::char_traits<CharT>, test_allocator<CharT>> ss(s, std::ios_base::in);
39     assert(ss.view() == SV("testing"));
40   }
41 }
42 
43 int main(int, char**) {
44   test<char>();
45 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
46   test<wchar_t>();
47 #endif
48   return 0;
49 }
50