diff options
Diffstat (limited to 'libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc')
-rw-r--r-- | libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc new file mode 100644 index 00000000000..e2db338e6a6 --- /dev/null +++ b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc @@ -0,0 +1,71 @@ +// 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; +} |