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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/char/4402.cc
1 // 1999-11-15 Kevin Ediger <kediger@licor.com>
2 // test the floating point inserters (facet num_put)
4 // Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 2, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING. If not, write to the Free
19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
22 #include <cstdio> // for sprintf
27 #include <testsuite_hooks.h>
34 bool test
__attribute__((unused
)) = true;
35 // make sure we can output a very long float
36 long double val
= 1.2345678901234567890123456789e+1000L;
37 int prec
= numeric_limits
<long double>::digits10
;
41 os
.setf(ios::scientific
);
45 sprintf(largebuf
, "%.*Le", prec
, val
);
46 #ifdef TEST_NUMPUT_VERBOSE
47 cout
<< "expect: " << largebuf
<< endl
;
48 cout
<< "result: " << os
.str() << endl
;
50 VERIFY(os
&& os
.str() == largebuf
);
52 // Make sure we can output a long float in fixed format
53 // without seg-faulting (libstdc++/4402)
54 double val2
= 3.5e230
;
61 sprintf(largebuf
, "%.*f", 3, val2
);
62 #ifdef TEST_NUMPUT_VERBOSE
63 cout
<< "expect: " << largebuf
<< endl
;
64 cout
<< "result: " << os2
.str() << endl
;
66 VERIFY(os2
&& os2
.str() == largebuf
);