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// 1999-11-15 Kevin Ediger <kediger@licor.com>
// test the floating point inserters (facet num_put)
// Copyright (C) 1999-2016 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 <cstdio> // for sprintf
#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 = numeric_limits<long double>::max();
int prec = numeric_limits<long double>::digits10;
ostringstream os;
os.precision(prec);
os.setf(ios::scientific);
os << val;
char largebuf[512];
sprintf(largebuf, "%.*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 = numeric_limits<double>::max();
ostringstream os2;
os2.precision(3);
os2.setf(ios::fixed);
os2 << val2;
sprintf(largebuf, "%.*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;
}
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