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) 2001-2024 Free Software Foundation, Inc.
   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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 22.2.2.1.1  num_get members
  21
  22 // { dg-do run { xfail lax_strtofp } }
  23
  24 #include <locale>
  25 #include <sstream>
  26 #include <testsuite_hooks.h>
  27
  28 void test02()
  29 {
  30   using namespace std;
  31   typedef istreambuf_iterator<wchar_t> iterator_type;
  32
  33   // basic construction
  34   locale loc_c = locale::classic();
  35
  36   // sanity check the data is correct.
  37   const wstring empty;
  38
  39   bool b1 = true;
  40   bool b0 = false;
  41   unsigned long ul1 = 1294967294;
  42   unsigned long ul2 = 0;
  43   unsigned long ul;
  44   double d1 =  1.02345e+308;
  45   double d2 = 3.15e-308;
  46   double d;
  47
  48   // cache the num_get facet
  49   wistringstream iss;
  50   iss.imbue(loc_c);
  51   const num_get<wchar_t>& ng = use_facet<num_get<wchar_t> >(iss.getloc());
  52   const ios_base::iostate goodbit = ios_base::goodbit;
  53   const ios_base::iostate eofbit = ios_base::eofbit;
  54   ios_base::iostate err = ios_base::goodbit;
  55
  56   // C
  57   // bool, more twisted examples
  58   iss.str(L"true ");
  59   iss.clear();
  60   iss.setf(ios_base::boolalpha);
  61   err = goodbit;
  62   ng.get(iss.rdbuf(), 0, iss, err, b0);
  63   VERIFY( b0 == true );
  64   VERIFY( err == goodbit );
  65
  66   iss.str(L"false ");
  67   iss.clear();
  68   iss.setf(ios_base::boolalpha);
  69   err = goodbit;
  70   ng.get(iss.rdbuf(), 0, iss, err, b1);
  71   VERIFY( b1 == false );
  72   VERIFY( err == goodbit );
  73
  74   // unsigned long, in a locale that does not group
  75   iss.imbue(loc_c);
  76   iss.str(L"1294967294");
  77   iss.clear();
  78   err = goodbit;
  79   ng.get(iss.rdbuf(), 0, iss, err, ul);
  80   VERIFY( ul == ul1);
  81   VERIFY( err == eofbit );
  82
  83   iss.str(L"0+++++++++++++++++++");
  84   iss.clear();
  85   err = goodbit;
  86   ng.get(iss.rdbuf(), 0, iss, err, ul);
  87   VERIFY( ul == ul2);
  88   VERIFY( err == goodbit );
  89
  90   // double
  91   iss.imbue(loc_c);
  92   iss.str(L"1.02345e+308++++++++");
  93   iss.clear();
  94   iss.width(20);
  95   iss.setf(ios_base::left, ios_base::adjustfield);
  96   err = goodbit;
  97   ng.get(iss.rdbuf(), 0, iss, err, d);
  98   VERIFY( d == d1 );
  99   VERIFY( err == goodbit );
 100
 101   iss.str(L"+3.15e-308");
 102   iss.clear();
 103   iss.width(20);
 104   iss.setf(ios_base::right, ios_base::adjustfield);
 105   err = goodbit;
 106   ng.get(iss.rdbuf(), 0, iss, err, d);
 107   VERIFY( d == d2 );
 108   VERIFY( err == eofbit );
 109 }
 110
 111 int main()
 112 {
 113   test02();
 114   return 0;
 115 }
 116
 117
 118 // Kathleen Hannah, humanitarian, woman, art-thief