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 // explicit basic_istringstream(const basic_string<charT,traits,allocator>& str,
15 // ios_base::openmode which = ios_base::in);
16
17 #include <sstream>
18 #include <cassert>
19
20 #include "test_macros.h"
21
main(int,char **)22 int main(int, char**)
23 {
24 {
25 std::istringstream ss(" 123 456");
26 assert(ss.rdbuf() != 0);
27 assert(ss.good());
28 assert(ss.str() == " 123 456");
29 int i = 0;
30 ss >> i;
31 assert(i == 123);
32 ss >> i;
33 assert(i == 456);
34 }
35 {
36 std::istringstream ss(" 123 456", std::ios_base::out);
37 assert(ss.rdbuf() != 0);
38 assert(ss.good());
39 assert(ss.str() == " 123 456");
40 int i = 0;
41 ss >> i;
42 assert(i == 123);
43 ss >> i;
44 assert(i == 456);
45 }
46 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
47 {
48 std::wistringstream ss(L" 123 456");
49 assert(ss.rdbuf() != 0);
50 assert(ss.good());
51 assert(ss.str() == L" 123 456");
52 int i = 0;
53 ss >> i;
54 assert(i == 123);
55 ss >> i;
56 assert(i == 456);
57 }
58 {
59 std::wistringstream ss(L" 123 456", std::ios_base::out);
60 assert(ss.rdbuf() != 0);
61 assert(ss.good());
62 assert(ss.str() == L" 123 456");
63 int i = 0;
64 ss >> i;
65 assert(i == 123);
66 ss >> i;
67 assert(i == 456);
68 }
69 #endif
70
71 return 0;
72 }
73