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 #include "test_macros.h"
20 
main(int,char **)21 int main(int, char**)
22 {
23     {
24         std::istringstream ss(" 123 456");
25         assert(ss.rdbuf() != 0);
26         assert(ss.good());
27         assert(ss.str() == " 123 456");
28         int i = 0;
29         ss >> i;
30         assert(i == 123);
31         ss >> i;
32         assert(i == 456);
33         ss.str(" 789");
34         ss.clear();
35         assert(ss.good());
36         assert(ss.str() == " 789");
37         ss >> i;
38         assert(i == 789);
39     }
40 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
41     {
42         std::wistringstream ss(L" 123 456");
43         assert(ss.rdbuf() != 0);
44         assert(ss.good());
45         assert(ss.str() == L" 123 456");
46         int i = 0;
47         ss >> i;
48         assert(i == 123);
49         ss >> i;
50         assert(i == 456);
51         ss.str(L" 789");
52         ss.clear();
53         assert(ss.good());
54         assert(ss.str() == L" 789");
55         ss >> i;
56         assert(i == 789);
57     }
58 #endif
59 
60   return 0;
61 }
62