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 // <strstream>
11 
12 // class strstreambuf
13 
14 // strstreambuf(const signed char* gnext_arg, streamsize n);
15 
16 #include <strstream>
17 #include <cassert>
18 
main()19 int main()
20 {
21     {
22         const signed char buf[] = "abcd";
23         std::strstreambuf sb(buf, sizeof(buf));
24         assert(sb.sgetc() == 'a');
25         assert(sb.snextc() == 'b');
26         assert(sb.snextc() == 'c');
27         assert(sb.snextc() == 'd');
28         assert(sb.snextc() == 0);
29         assert(sb.snextc() == EOF);
30     }
31     {
32         const signed char buf[] = "abcd";
33         std::strstreambuf sb(buf, 0);
34         assert(sb.sgetc() == 'a');
35         assert(sb.snextc() == 'b');
36         assert(sb.snextc() == 'c');
37         assert(sb.snextc() == 'd');
38         assert(sb.snextc() == EOF);
39     }
40 }
41