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
|
// 981208 bkoz test functionality of basic_stringbuf for char_type == char
// Copyright (C) 1997-2019 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#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()
{
std::string str_tmp, str_tmp2;
typedef std::stringbuf::int_type int_type;
typedef std::stringbuf::traits_type traits_type;
int_type c1 = strb_01.sbumpc();
int_type c2 = strb_02.sbumpc();
int_type c3 = strb_01.sbumpc();
int_type c4 = strb_02.sbumpc();
// PUT
strb_03.str(str_01); //reset
strb_03.str().length();
strb_03.str().length();
// streamsize sputn(const char_typs* s, streamsize n)
// write up to n chars to out_cur from s, returning number assigned
// NB *sputn will happily put '\0' into your stream if you give it a chance*
str_tmp = strb_03.str();
str_tmp.length();
strb_03.sputn("racadabras", 10);//"abracadabras or what?"
strb_03.str().length();
strb_03.sputn(", i wanna reach out and", 10);
strb_03.str().length();
str_tmp = strb_02.str();
strb_02.sputn("racadabra", 10);
// PUTBACK
// int_type sputbackc(char_type c)
// if in_cur not avail || ! traits::eq(c, gptr() [-1]), return pbfail
// otherwise decrements in_cur and returns *gptr()
strb_01.in_avail();
str_tmp = strb_01.str();
c1 = strb_01.sgetc(); //"mykonos. . . 'o'r what?"
c2 = strb_01.sputbackc('z');//"mykonos. . .zor what?"
c3 = strb_01.sgetc();
str_tmp2 = strb_01.str();
VERIFY( c1 != c2 );
VERIFY( c3 == c2 );
VERIFY( str_tmp2 == std::string("mzkonos. . . or what?") );
VERIFY( str_tmp.size() == str_tmp2.size() );
//test for _in_cur == _in_beg
strb_01.str(str_tmp);
strb_01.in_avail();
c1 = strb_01.sgetc(); //"'m'ykonos. . . or what?"
c2 = strb_01.sputbackc('z');//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 != c2 );
VERIFY( c1 == c3 );
VERIFY( c2 == traits_type::eof() );
VERIFY( strb_01.str() == str_tmp );
VERIFY( str_tmp.size() == strb_01.str().size() );
// test for replacing char with identical one
strb_01.str(str_01); //reset
strb_01.in_avail();
strb_01.sbumpc();
strb_01.sbumpc();
c1 = strb_01.sgetc(); //"my'k'onos. . . or what?"
c2 = strb_01.sputbackc('y');//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 == c2 );
VERIFY( c1 != c3 );
VERIFY( strb_01.str() == str_01 );
VERIFY( str_01.size() == strb_01.str().size() );
//test for ios_base::out
strb_03.in_avail();
c4 = strb_03.sputbackc('x');
VERIFY( c4 == traits_type::eof() );
}
int main()
{
test04();
return 0;
}
// more candy!!!
|
