libstdc++-v3/testsuite/22_locale/num_get/get/wchar_t/2.cc

   1 // 2001-11-21 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2002, 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  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 void test02()
  28 {
  29   using namespace std;
  30   typedef istreambuf_iterator<wchar_t> iterator_type;
  31
  32   bool test __attribute__((unused)) = true;
  33
  34   // basic construction
  35   locale loc_c = locale::classic();
  36   locale loc_hk = __gnu_test::try_named_locale("en_HK");
  37   locale loc_fr = __gnu_test::try_named_locale("fr_FR@euro");
  38   locale loc_de = __gnu_test::try_named_locale("de_DE");
  39   VERIFY( loc_c != loc_de );
  40   VERIFY( loc_hk != loc_fr );
  41   VERIFY( loc_hk != loc_de );
  42   VERIFY( loc_de != loc_fr );
  43
  44   // sanity check the data is correct.
  45   const wstring empty;
  46
  47   bool b1 = true;
  48   bool b0 = false;
  49   unsigned long ul1 = 1294967294;
  50   unsigned long ul2 = 0;
  51   unsigned long ul;
  52   double d1 =  1.02345e+308;
  53   double d2 = 3.15e-308;
  54   double d;
  55
  56   // cache the num_get facet
  57   wistringstream iss;
  58   iss.imbue(loc_c);
  59   const num_get<wchar_t>& ng = use_facet<num_get<wchar_t> >(iss.getloc());
  60   const ios_base::iostate goodbit = ios_base::goodbit;
  61   const ios_base::iostate eofbit = ios_base::eofbit;
  62   ios_base::iostate err = ios_base::goodbit;
  63
  64   // C
  65   // bool, more twisted examples
  66   iss.str(L"true ");
  67   iss.clear();
  68   iss.setf(ios_base::boolalpha);
  69   err = goodbit;
  70   ng.get(iss.rdbuf(), 0, iss, err, b0);
  71   VERIFY( b0 == true );
  72   VERIFY( err == goodbit );
  73
  74   iss.str(L"false ");
  75   iss.clear();
  76   iss.setf(ios_base::boolalpha);
  77   err = goodbit;
  78   ng.get(iss.rdbuf(), 0, iss, err, b1);
  79   VERIFY( b1 == false );
  80   VERIFY( err == goodbit );
  81
  82   // unsigned long, in a locale that does not group
  83   iss.imbue(loc_c);
  84   iss.str(L"1294967294");
  85   iss.clear();
  86   err = goodbit;
  87   ng.get(iss.rdbuf(), 0, iss, err, ul);
  88   VERIFY( ul == ul1);
  89   VERIFY( err == eofbit );
  90
  91   iss.str(L"0+++++++++++++++++++");
  92   iss.clear();
  93   err = goodbit;
  94   ng.get(iss.rdbuf(), 0, iss, err, ul);
  95   VERIFY( ul == ul2);
  96   VERIFY( err == goodbit );
  97
  98   // double
  99   iss.imbue(loc_c);
 100   iss.str(L"1.02345e+308++++++++");
 101   iss.clear();
 102   iss.width(20);
 103   iss.setf(ios_base::left, ios_base::adjustfield);
 104   err = goodbit;
 105   ng.get(iss.rdbuf(), 0, iss, err, d);
 106   VERIFY( d == d1 );
 107   VERIFY( err == goodbit );
 108
 109   iss.str(L"+3.15e-308");
 110   iss.clear();
 111   iss.width(20);
 112   iss.setf(ios_base::right, ios_base::adjustfield);
 113   err = goodbit;
 114   ng.get(iss.rdbuf(), 0, iss, err, d);
 115   VERIFY( d == d2 );
 116   VERIFY( err == eofbit );
 117 }
 118
 119 int main()
 120 {
 121   test02();
 122   return 0;
 123 }
 124
 125
 126 // Kathleen Hannah, humanitarian, woman, art-thief