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
|
// 1999-07-01 bkoz
// Copyright (C) 1999-2018 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/>.
// 21.3.7.9 inserters and extractors
// NB: This file is predicated on sstreams, istreams, and ostreams
// working, not to mention other major details like char_traits, and
// all of the string class.
#include <string>
#include <sstream>
#include <testsuite_hooks.h>
// istringstream/stringbuf extractor properly size buffer based on
// actual, not allocated contents (string.size() vs. string.capacity()).
// http://gcc.gnu.org/ml/libstdc++/1999-q4/msg00049.html
void test06(void)
{
typedef std::string::size_type size_type;
std::string str01("@silent");
size_type i01 = str01.size();
size_type i02 = str01.capacity();
str01.erase(0, 1);
size_type i03 = str01.size();
size_type i04 = str01.capacity();
VERIFY( i01 - 1 == i03 );
VERIFY( i02 >= i04 );
std::istringstream is(str01);
std::string str02;
is >> str02 >> std::ws;
size_type i05 = str02.size();
size_type i06 = str02.capacity();
VERIFY( i05 == i03 );
VERIFY( i06 <= i04 );
}
int main()
{
test06();
return 0;
}
|
