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
|
// 981208 bkoz test functionality of basic_stringbuf for char_type == char
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
// Free Software Foundation, Inc.
//
// 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
#include <sstream>
#include <testsuite_hooks.h>
std::string str_01("mykonos. . . or what?");
std::string str_02("paris, or sainte-maxime?");
std::string str_03;
std::stringbuf strb_01(str_01);
std::stringbuf strb_02(str_02, std::ios_base::in);
std::stringbuf strb_03(str_03, std::ios_base::out);
// test overloaded virtual functions
void test04()
{
bool test __attribute__((unused)) = true;
std::string str_tmp;
std::stringbuf strb_tmp;
std::streamsize strmsz_1, strmsz_2;
typedef std::stringbuf::int_type int_type;
typedef std::stringbuf::traits_type traits_type;
typedef std::stringbuf::pos_type pos_type;
typedef std::stringbuf::off_type off_type;
int_type c1 = strb_01.sbumpc();
int_type c2 = strb_02.sbumpc();
int_type c3 = strb_01.sbumpc();
// PUT
strb_03.str(str_01); //reset
// BUFFER MANAGEMENT & POSITIONING
// seekoff
// pubseekoff(off_type off, ios_base::seekdir way, ios_base::openmode which)
// alters the stream position to off
pos_type pt_1(off_type(-1));
pos_type pt_2(off_type(0));
off_type off_1 = 0;
off_type off_2 = 0;
strb_01.str(str_01); //in|out ("mykonos. . . or what?");
strb_02.str(str_02); //in ("paris, or sainte-maxime?");
strb_03.str(str_03); //out ("")
//IN|OUT
//beg
pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
off_1 = pt_1;
VERIFY( off_1 >= 0 );
c1 = strb_01.snextc(); //current in pointer +1
VERIFY( c1 == 'o' );
c2 = strb_01.sputc('x'); //test current out pointer
str_tmp = std::string("myxonos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
//cur
pt_1 = strb_01.pubseekoff(2, std::ios_base::cur);
off_1 = pt_1;
VERIFY( off_1 == -1 ); // can't seekoff for in and out + cur in sstreams
pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
off_1 = pt_1;
pt_2 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
off_2 = pt_2;
VERIFY( off_2 == off_1 + 2 );
c1 = strb_01.snextc(); //current in pointer + 1
VERIFY( c1 == ' ' );
c2 = strb_01.sputc('x'); //test current out pointer
str_tmp = std::string("myxxnos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
//end
pt_2 = strb_01.pubseekoff(2, std::ios_base::end);
off_1 = pt_2;
VERIFY( off_1 == -1 ); // not a valid position
VERIFY( strb_01.str() == str_tmp );
// end part two (from the filebuf tests)
strb_01.pubseekoff(0, std::ios_base::end);
strmsz_1 = strb_01.in_avail(); // 0 cuz at the end
c1 = strb_01.sgetc();
c2 = strb_01.sungetc();
strmsz_2 = strb_01.in_avail(); // 1
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( strmsz_2 != strmsz_1 );
VERIFY( strmsz_2 == 1 );
// end part three
strmsz_1 = strb_01.str().size();
strmsz_2 = strb_01.sputn(" ravi shankar meets carlos santana in LoHa", 90);
strb_01.pubseekoff(0, std::ios_base::end);
strb_01.sputc('<');
str_tmp = strb_01.str();
VERIFY(static_cast<std::streamsize>(str_tmp.size()) == strmsz_1 + strmsz_2 + 1);
// IN
// OUT
}
int main()
{
test04();
return 0;
}
// more candy!!!
|