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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_ostringstream
14 
15 // explicit basic_ostringstream(const basic_string<charT,traits,allocator>& str,
16 //                              ios_base::openmode which = ios_base::in);
17 
18 #include <sstream>
19 #include <cassert>
20 
main()21 int main()
22 {
23     {
24         std::ostringstream ss(" 123 456");
25         assert(ss.rdbuf() != 0);
26         assert(ss.good());
27         assert(ss.str() == " 123 456");
28         int i = 234;
29         ss << i << ' ' << 567;
30         assert(ss.str() == "234 5676");
31     }
32     {
33         std::ostringstream ss(" 123 456", std::ios_base::in);
34         assert(ss.rdbuf() != 0);
35         assert(ss.good());
36         assert(ss.str() == " 123 456");
37         int i = 234;
38         ss << i << ' ' << 567;
39         assert(ss.str() == "234 5676");
40     }
41     {
42         std::wostringstream ss(L" 123 456");
43         assert(ss.rdbuf() != 0);
44         assert(ss.good());
45         assert(ss.str() == L" 123 456");
46         int i = 234;
47         ss << i << ' ' << 567;
48         assert(ss.str() == L"234 5676");
49     }
50     {
51         std::wostringstream ss(L" 123 456", std::ios_base::in);
52         assert(ss.rdbuf() != 0);
53         assert(ss.good());
54         assert(ss.str() == L" 123 456");
55         int i = 234;
56         ss << i << ' ' << 567;
57         assert(ss.str() == L"234 5676");
58     }
59 }
60