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

   1 // 1999-11-15 Kevin Ediger  <kediger@licor.com>
   2 // test the floating point inserters (facet num_put)
   3
   4 // Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
   5 //
   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)
  10 // any later version.
  11
  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.
  16
  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,
  20 // USA.
  21
  22 #include <cstdio> // for sprintf
  23 #include <iostream>
  24 #include <iomanip>
  25 #include <locale>
  26 #include <sstream>
  27 #include <limits>
  28 #include <testsuite_hooks.h>
  29
  30 using namespace std;
  31
  32 void
  33 test02()
  34 {
  35   bool test __attribute__((unused)) = true;
  36
  37   // Make sure we can output a long float in fixed format
  38   // without seg-faulting (libstdc++/4402)
  39   double val2 = 3.5e230;
  40
  41   ostringstream os2;
  42   os2.precision(3);
  43   os2.setf(ios::fixed);
  44
  45   // Check it can be done in a locale with grouping on.
  46   locale loc2 = __gnu_test::try_named_locale("de_DE");
  47   os2.imbue(loc2);
  48   os2 << fixed << setprecision(3) << val2 << endl;
  49   os2 << endl;
  50   os2 << fixed << setprecision(1) << val2 << endl;
  51 }
  52
  53 int
  54 main()
  55 {
  56   test02();
  57   return 0;
  58 }