1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <sstream>
11 
12 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
13 // class basic_istringstream
14 
15 // explicit basic_istringstream(const basic_string<charT,traits,allocator>& str,
16 //                              ios_base::openmode which = ios_base::in);
17 
18 #include <sstream>
19 #include <cassert>
20 
21 int main()
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     }
34     {
35         std::istringstream ss(" 123 456", std::ios_base::out);
36         assert(ss.rdbuf() != 0);
37         assert(ss.good());
38         assert(ss.str() == " 123 456");
39         int i = 0;
40         ss >> i;
41         assert(i == 123);
42         ss >> i;
43         assert(i == 456);
44     }
45     {
46         std::wistringstream ss(L" 123 456");
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     }
56     {
57         std::wistringstream ss(L" 123 456", std::ios_base::out);
58         assert(ss.rdbuf() != 0);
59         assert(ss.good());
60         assert(ss.str() == L" 123 456");
61         int i = 0;
62         ss >> i;
63         assert(i == 123);
64         ss >> i;
65         assert(i == 456);
66     }
67 }
68