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 // <sstream>
10
11 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
12 // class basic_stringbuf
13
14 // template <class charT, class traits, class Allocator>
15 // void swap(basic_stringbuf<charT, traits, Allocator>& x,
16 // basic_stringbuf<charT, traits, Allocator>& y);
17
18 #include <sstream>
19 #include <cassert>
20
21 #include "test_macros.h"
22
main(int,char **)23 int main(int, char**)
24 {
25 {
26 std::stringbuf buf1("testing");
27 std::stringbuf buf;
28 swap(buf, buf1);
29 assert(buf.str() == "testing");
30 assert(buf1.str() == "");
31 }
32 {
33 std::stringbuf buf1("testing", std::ios_base::in);
34 std::stringbuf buf;
35 swap(buf, buf1);
36 assert(buf.str() == "testing");
37 assert(buf1.str() == "");
38 }
39 {
40 std::stringbuf buf1("testing", std::ios_base::out);
41 std::stringbuf buf;
42 swap(buf, buf1);
43 assert(buf.str() == "testing");
44 assert(buf1.str() == "");
45 }
46 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
47 {
48 std::wstringbuf buf1(L"testing");
49 std::wstringbuf buf;
50 swap(buf, buf1);
51 assert(buf.str() == L"testing");
52 assert(buf1.str() == L"");
53 }
54 {
55 std::wstringbuf buf1(L"testing", std::ios_base::in);
56 std::wstringbuf buf;
57 swap(buf, buf1);
58 assert(buf.str() == L"testing");
59 assert(buf1.str() == L"");
60 }
61 {
62 std::wstringbuf buf1(L"testing", std::ios_base::out);
63 std::wstringbuf buf;
64 swap(buf, buf1);
65 assert(buf.str() == L"testing");
66 assert(buf1.str() == L"");
67 }
68 #endif // TEST_HAS_NO_WIDE_CHARACTERS
69
70 return 0;
71 }
72