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// REQUIRES: locale.en_US.UTF-8
10
11// <streambuf>
12
13// template <class charT, class traits = char_traits<charT> >
14// class basic_streambuf;
15
16// basic_streambuf& operator=(const basic_streambuf& rhs);
17
18#include <streambuf>
19#include <cassert>
20
21#include "test_macros.h"
22#include "platform_support.h" // locale name macros
23
24template <class CharT>
25struct test
26 : public std::basic_streambuf<CharT>
27{
28 typedef std::basic_streambuf<CharT> base;
29 test() {}
30
31 test& operator=(const test& t)
32 {
33 base::operator=(t);
34 assert(this->eback() == t.eback());
35 assert(this->gptr() == t.gptr());
36 assert(this->egptr() == t.egptr());
37 assert(this->pbase() == t.pbase());
38 assert(this->pptr() == t.pptr());
39 assert(this->epptr() == t.epptr());
40 assert(this->getloc() == t.getloc());
41 return *this;
42 }
43
44 void setg(CharT* gbeg, CharT* gnext, CharT* gend)
45 {
46 base::setg(gbeg, gnext, gend);
47 }
48 void setp(CharT* pbeg, CharT* pend)
49 {
50 base::setp(pbeg, pend);
51 }
52};
53
54int main(int, char**)
55{
56 {
57 test<char> t;
58 test<char> t2;
59 t2 = t;
60 }
61 {
62 char g[3];
63 char p[3];
64 test<char> t;
65 t.setg(gbeg: &g[0], gnext: &g[1], gend: &g[2]);
66 t.setp(pbeg: &p[0], pend: &p[2]);
67 test<char> t2;
68 t2 = t;
69 }
70#ifndef TEST_HAS_NO_WIDE_CHARACTERS
71 {
72 test<wchar_t> t;
73 test<wchar_t> t2;
74 t2 = t;
75 }
76 {
77 wchar_t g[3];
78 wchar_t p[3];
79 test<wchar_t> t;
80 t.setg(gbeg: &g[0], gnext: &g[1], gend: &g[2]);
81 t.setp(pbeg: &p[0], pend: &p[2]);
82 test<wchar_t> t2;
83 t2 = t;
84 }
85#endif
86 std::locale::global(std::locale(LOCALE_en_US_UTF_8));
87 {
88 test<char> t;
89 test<char> t2;
90 t2 = t;
91 }
92#ifndef TEST_HAS_NO_WIDE_CHARACTERS
93 {
94 test<wchar_t> t;
95 test<wchar_t> t2;
96 t2 = t;
97 }
98#endif
99
100 return 0;
101}
102

source code of libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.protected/streambuf.assign/assign.pass.cpp