1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
// 1999-07-28 bkoz
// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
// Free Software Foundation
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// 27.6.1.2.3 basic_istream::operator>>
#include <istream>
#include <sstream>
#include <testsuite_hooks.h>
// stringbufs.
void test01()
{
typedef std::ios::traits_type ctraits_type;
bool test __attribute__((unused)) = true;
const std::string str_01;
const std::string str_02("art taylor kickin it on DAKAR");
std::string strtmp;
std::stringbuf isbuf_00(std::ios_base::in);
std::stringbuf isbuf_01(std::ios_base::in | std::ios_base::out);
std::stringbuf isbuf_02(str_01, std::ios_base::in);
std::stringbuf isbuf_03(str_01, std::ios_base::in | std::ios_base::out);
std::stringbuf isbuf_04(str_02, std::ios_base::in);
std::stringbuf isbuf_05(str_02, std::ios_base::in | std::ios_base::out);
std::istream is_00(NULL);
std::istream is_01(&isbuf_01);
std::istream is_02(&isbuf_02);
std::istream is_03(&isbuf_03);
std::istream is_04(&isbuf_04);
std::istream is_05(&isbuf_05);
std::ios_base::iostate state1, state2, statefail, stateeof;
statefail = std::ios_base::failbit;
stateeof = std::ios_base::eofbit;
// template<_CharT, _Traits>
// basic_istream& operator>>(basic_streambuf*)
// null istream to empty in_buf
state1 = is_00.rdstate();
is_00 >> &isbuf_00;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_00.str() == str_01 );
// null istream to empty in_out_buf
is_00.clear(std::ios_base::goodbit);
state1 = is_00.rdstate();
is_00 >> &isbuf_01;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_01.str() == str_01 );
// null istream to full in_buf
is_00.clear(std::ios_base::goodbit);
state1 = is_00.rdstate();
is_00 >> &isbuf_04;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_04.str() == str_02 );
// null istream to full in_out_buf
is_00.clear(std::ios_base::goodbit);
state1 = is_00.rdstate();
is_00 >> &isbuf_05;
state2 = is_00.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_05.str() == str_02 );
// empty but non-null istream to full in_buf
state1 = is_02.rdstate();
is_02 >> &isbuf_04;
state2 = is_02.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_04.str() == str_02 ); // as only an "in" buffer
VERIFY( isbuf_04.sgetc() == 'a' );
// empty but non-null istream to full in_out_buf
is_02.clear(std::ios_base::goodbit);
state1 = is_02.rdstate();
is_02 >> &isbuf_05;
state2 = is_02.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_05.str() == str_02 ); // as only an "in" buffer
VERIFY( isbuf_05.sgetc() == 'a' );
// full istream to empty in_buf (need out_buf, you know?)
state1 = is_04.rdstate();
is_04 >> &isbuf_02;
state2 = is_04.rdstate();
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
VERIFY( isbuf_02.str() == str_01 ); // as only an "in" buffer
VERIFY( isbuf_02.sgetc() == ctraits_type::eof() );
VERIFY( is_04.peek() == ctraits_type::eof() ); // as failed
// full istream to empty in_out_buf
is_04.clear(std::ios_base::goodbit);
state1 = is_04.rdstate();
is_04 >> &isbuf_03;
state2 = is_04.rdstate();
VERIFY( state1 != state2 );
VERIFY( !static_cast<bool>(state2 & statefail) );
VERIFY( state2 == stateeof );
strtmp = isbuf_03.str();
VERIFY( strtmp == str_02 ); // as only an "in" buffer
VERIFY( isbuf_03.sgetc() == 'a' );
VERIFY( is_04.peek() == ctraits_type::eof() );
}
int main()
{
test01();
return 0;
}
|
