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 setg(char_type* gbeg, char_type* gnext, char_type* gend);
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
setgtest28 void setg(CharT* gbeg, CharT* gnext, CharT* gend)
29 {
30 base::setg(gbeg, gnext, gend);
31 assert(base::eback() == gbeg);
32 assert(base::gptr() == gnext);
33 assert(base::egptr() == gend);
34 }
35 };
36
main()37 int main()
38 {
39 {
40 test<char> t;
41 char in[] = "ABC";
42 t.setg(in, in+1, in+sizeof(in)/sizeof(in[0]));
43 }
44 {
45 test<wchar_t> t;
46 wchar_t in[] = L"ABC";
47 t.setg(in, in+1, in+sizeof(in)/sizeof(in[0]));
48 }
49 }
50