old-autovect-branch/libstdc++-v3/testsuite/22_locale/num_get/get/char/15.cc

   1 // 2004-03-01  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2004 Free Software Foundation
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 22.2.2.1.1  num_get members
  22
  23 #include <locale>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 struct Punct1: std::numpunct<char>
  28 {
  29   std::string do_grouping() const { return "\1"; }
  30   char do_thousands_sep() const { return '+'; }
  31 };
  32
  33 struct Punct2: std::numpunct<char>
  34 {
  35   char do_decimal_point() const { return '-'; }
  36 };
  37
  38 // http://gcc.gnu.org/ml/libstdc++/2003-12/msg00201.html
  39 void test01()
  40 {
  41   using namespace std;
  42   typedef istreambuf_iterator<char> iterator_type;
  43
  44   bool test __attribute__((unused)) = true;
  45
  46   istringstream iss1, iss2;
  47   iss1.imbue(locale(iss1.getloc(), new Punct1));
  48   iss2.imbue(locale(iss2.getloc(), new Punct2));
  49   const num_get<char>& ng1 = use_facet<num_get<char> >(iss1.getloc());
  50   const num_get<char>& ng2 = use_facet<num_get<char> >(iss2.getloc());
  51
  52   ios_base::iostate err = ios_base::goodbit;
  53   iterator_type end;
  54   double d = 0.0;
  55   double d1 = 1.0;
  56   double d2 = 3.0;
  57
  58   iss1.str("1e+2");
  59   err = ios_base::goodbit;
  60   end = ng1.get(iss1.rdbuf(), 0, iss1, err, d);
  61   VERIFY( err == ios_base::goodbit );
  62   VERIFY( d == d1 );
  63
  64   iss2.str("3e-1");
  65   err = ios_base::goodbit;
  66   end = ng2.get(iss2.rdbuf(), 0, iss2, err, d);
  67   VERIFY( err == ios_base::goodbit );
  68   VERIFY( d == d2 );
  69 }
  70
  71 int main()
  72 {
  73   test01();
  74   return 0;
  75 }