libstdc++-v3/testsuite/22_locale/num_get/get/wchar_t/3.cc

   1 // { dg-require-namedlocale "en_HK.ISO8859-1" }
   2
   3 // 2001-11-21 Benjamin Kosnik  <bkoz@redhat.com>
   4
   5 // Copyright (C) 2001-2022 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // 22.2.2.1.1  num_get members
  23
  24 #include <locale>
  25 #include <sstream>
  26 #include <testsuite_hooks.h>
  27
  28 void test03()
  29 {
  30   using namespace std;
  31   typedef istreambuf_iterator<wchar_t> iterator_type;
  32
  33   // basic construction
  34   locale loc_c = locale::classic();
  35   locale loc_hk = locale(ISO_8859(1,en_HK));
  36   VERIFY( loc_c != loc_hk );
  37
  38   // sanity check the data is correct.
  39   const wstring empty;
  40
  41   long l1 = 2147483647;
  42   long l2 = -2147483647;
  43   long l;
  44
  45   // cache the num_get facet
  46   wistringstream iss;
  47   iss.imbue(loc_hk);
  48   const num_get<wchar_t>& ng = use_facet<num_get<wchar_t> >(iss.getloc());
  49   const ios_base::iostate goodbit = ios_base::goodbit;
  50   ios_base::iostate err = ios_base::goodbit;
  51
  52   // HK
  53   // long, in a locale that expects grouping
  54   iss.str(L"2,147,483,647 ");
  55   iss.clear();
  56   err = goodbit;
  57   ng.get(iss.rdbuf(), 0, iss, err, l);
  58   VERIFY( l == l1 );
  59   VERIFY( err == goodbit );
  60
  61   iss.str(L"-2,147,483,647++++++");
  62   iss.clear();
  63   err = goodbit;
  64   ng.get(iss.rdbuf(), 0, iss, err, l);
  65   VERIFY( l == l2 );
  66   VERIFY( err == goodbit );
  67 }
  68
  69 int main()
  70 {
  71   test03();
  72   return 0;
  73 }
  74
  75
  76 // Kathleen Hannah, humanitarian, woman, art-thief