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_istringstream
13 
14 // void str(const basic_string<charT,traits,Allocator>& s);
15 
16 #include <sstream>
17 #include <cassert>
18 
19 int main(int, char**)
20 {
21     {
22         std::istringstream ss(" 123 456");
23         assert(ss.rdbuf() != 0);
24         assert(ss.good());
25         assert(ss.str() == " 123 456");
26         int i = 0;
27         ss >> i;
28         assert(i == 123);
29         ss >> i;
30         assert(i == 456);
31         ss.str(" 789");
32         ss.clear();
33         assert(ss.good());
34         assert(ss.str() == " 789");
35         ss >> i;
36         assert(i == 789);
37     }
38     {
39         std::wistringstream ss(L" 123 456");
40         assert(ss.rdbuf() != 0);
41         assert(ss.good());
42         assert(ss.str() == L" 123 456");
43         int i = 0;
44         ss >> i;
45         assert(i == 123);
46         ss >> i;
47         assert(i == 456);
48         ss.str(L" 789");
49         ss.clear();
50         assert(ss.good());
51         assert(ss.str() == L" 789");
52         ss >> i;
53         assert(i == 789);
54     }
55 
56   return 0;
57 }
58