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
|
// Copyright (C) 2005 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 <cstdio> // for swprintf
#include <iostream>
#include <iomanip>
#include <sstream>
#include <limits>
#include <testsuite_hooks.h>
void
test02()
{
using namespace std;
bool test __attribute__((unused)) = true;
// make sure we can output a very long float
long double val = 1.2345678901234567890123456789e+1000L;
int prec = numeric_limits<long double>::digits10;
wostringstream os;
os.precision(prec);
os.setf(wios::scientific);
os << val;
wchar_t largebuf[512];
swprintf(largebuf, 512, L"%.*Le", prec, val);
#ifdef TEST_NUMPUT_VERBOSE
cout << "expect: " << largebuf << endl;
cout << "result: " << os.str() << endl;
#endif
VERIFY( os && os.str() == largebuf );
// Make sure we can output a long float in fixed format
// without seg-faulting (libstdc++/4402)
double val2 = 3.5e230;
wostringstream os2;
os2.precision(3);
os2.setf(wios::fixed);
os2 << val2;
swprintf(largebuf, 512, L"%.*f", 3, val2);
#ifdef TEST_NUMPUT_VERBOSE
cout << "expect: " << largebuf << endl;
cout << "result: " << os2.str() << endl;
#endif
VERIFY( os2 && os2.str() == largebuf );
}
int
main()
{
test02();
return 0;
}
|
