libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/char/2.cc

   1 // { dg-require-namedlocale "de_DE.ISO8859-15" }
   2
   3 // 1999-11-15 Kevin Ediger  <kediger@licor.com>
   4 // test the floating point inserters (facet num_put)
   5
   6 // Copyright (C) 1999-2020 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 #include <iostream>
  24 #include <iomanip>
  25 #include <locale>
  26 #include <sstream>
  27 #include <limits>
  28 #include <testsuite_hooks.h>
  29
  30 void
  31 test02()
  32 {
  33   using namespace std;
  34
  35   // Make sure we can output a long float in fixed format
  36   // without seg-faulting (libstdc++/4402)
  37   double val2 = 3.5e230;
  38
  39   ostringstream os2;
  40   os2.precision(3);
  41   os2.setf(ios::fixed);
  42
  43   // Check it can be done in a locale with grouping on.
  44   locale loc2 = locale(ISO_8859(15,de_DE));
  45   os2.imbue(loc2);
  46   os2 << fixed << setprecision(3) << val2 << endl;
  47   os2 << endl;
  48   os2 << fixed << setprecision(1) << val2 << endl;
  49 }
  50
  51 int
  52 main()
  53 {
  54   test02();
  55   return 0;
  56 }