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 // <streambuf>
10
11 // template <class charT, class traits = char_traits<charT> >
12 // class basic_streambuf;
13
14 // void setg(char_type* gbeg, char_type* gnext, char_type* gend);
15
16 #include <streambuf>
17 #include <cassert>
18
19 #include "test_macros.h"
20
21 template <class CharT>
22 struct test
23 : public std::basic_streambuf<CharT>
24 {
25 typedef std::basic_streambuf<CharT> base;
26
testtest27 test() {}
28
setgtest29 void setg(CharT* gbeg, CharT* gnext, CharT* gend)
30 {
31 base::setg(gbeg, gnext, gend);
32 assert(base::eback() == gbeg);
33 assert(base::gptr() == gnext);
34 assert(base::egptr() == gend);
35 }
36 };
37
main(int,char **)38 int main(int, char**)
39 {
40 {
41 test<char> t;
42 char in[] = "ABC";
43 t.setg(in, in+1, in+sizeof(in)/sizeof(in[0]));
44 }
45 {
46 test<wchar_t> t;
47 wchar_t in[] = L"ABC";
48 t.setg(in, in+1, in+sizeof(in)/sizeof(in[0]));
49 }
50
51 return 0;
52 }
53