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 // <streambuf>
11 
12 // template <class charT, class traits = char_traits<charT> >
13 // class basic_streambuf;
14 
15 // void pbump(int n);
16 
17 #include <streambuf>
18 #include <cassert>
19 
20 template <class CharT>
21 struct test
22     : public std::basic_streambuf<CharT>
23 {
24     typedef std::basic_streambuf<CharT> base;
25 
testtest26     test() {}
27 
setptest28     void setp(CharT* pbeg, CharT* pend)
29     {
30         base::setp(pbeg, pend);
31     }
32 
pbumptest33     void pbump(int n)
34     {
35         CharT* pbeg = base::pbase();
36         CharT* pnext = base::pptr();
37         CharT* pend = base::epptr();
38         base::pbump(n);
39         assert(base::pbase() == pbeg);
40         assert(base::pptr() == pnext+n);
41         assert(base::epptr() == pend);
42     }
43 };
44 
main()45 int main()
46 {
47     {
48         test<char> t;
49         char in[] = "ABCDE";
50         t.setp(in, in+sizeof(in)/sizeof(in[0]));
51         t.pbump(2);
52         t.pbump(1);
53     }
54     {
55         test<wchar_t> t;
56         wchar_t in[] = L"ABCDE";
57         t.setp(in, in+sizeof(in)/sizeof(in[0]));
58         t.pbump(3);
59         t.pbump(1);
60     }
61 }
62