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_stringstream
13
14 // template <class charT, class traits, class Allocator>
15 // void
16 // swap(basic_stringstream<charT, traits, Allocator>& x,
17 // basic_stringstream<charT, traits, Allocator>& y);
18
19 #include <sstream>
20 #include <cassert>
21
22 #include "test_macros.h"
23
main(int,char **)24 int main(int, char**)
25 {
26 {
27 std::stringstream ss0(" 123 456 ");
28 std::stringstream ss;
29 swap(ss, ss0);
30 assert(ss.rdbuf() != 0);
31 assert(ss.good());
32 assert(ss.str() == " 123 456 ");
33 int i = 0;
34 ss >> i;
35 assert(i == 123);
36 ss >> i;
37 assert(i == 456);
38 ss << i << ' ' << 123;
39 assert(ss.str() == "456 1236 ");
40 ss0 << i << ' ' << 123;
41 assert(ss0.str() == "456 123");
42 }
43 {
44 std::wstringstream ss0(L" 123 456 ");
45 std::wstringstream ss;
46 swap(ss, ss0);
47 assert(ss.rdbuf() != 0);
48 assert(ss.good());
49 assert(ss.str() == L" 123 456 ");
50 int i = 0;
51 ss >> i;
52 assert(i == 123);
53 ss >> i;
54 assert(i == 456);
55 ss << i << ' ' << 123;
56 assert(ss.str() == L"456 1236 ");
57 ss0 << i << ' ' << 123;
58 assert(ss0.str() == L"456 123");
59 }
60
61 return 0;
62 }
63