libstdc++-v3/testsuite/22_locale/num_get/get/wchar_t/39802.cc

   1 // Copyright (C) 2009-2016 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 22.2.2.1.1  num_get members
  19
  20 #include <locale>
  21 #include <sstream>
  22 #include <limits>
  23 #include <testsuite_hooks.h>
  24
  25 // libstdc++/39802
  26 void test01()
  27 {
  28   using namespace std;
  29   typedef istreambuf_iterator<wchar_t> iterator_type;
  30
  31   bool test __attribute__((unused)) = true;
  32
  33   wstringstream ss;
  34   const num_get<wchar_t>& ng = use_facet<num_get<wchar_t> >(ss.getloc());
  35   ios_base::iostate err;
  36   iterator_type end;
  37   const wstring empty;
  38
  39   unsigned long ul0 = 1;
  40   const unsigned long ul1 = numeric_limits<unsigned long>::max();
  41
  42   ss << L"-0";
  43   err = ios_base::goodbit;
  44   end = ng.get(ss.rdbuf(), 0, ss, err, ul0);
  45   VERIFY( err == ios_base::eofbit );
  46   VERIFY( ul0 == 0 );
  47
  48   ss.clear();
  49   ss.str(empty);
  50   ss << L"-1";
  51   err = ios_base::goodbit;
  52   end = ng.get(ss.rdbuf(), 0, ss, err, ul0);
  53   VERIFY( err == ios_base::eofbit );
  54   VERIFY( ul0 == ul1 );
  55
  56   ss.clear();
  57   ss.str(empty);
  58   ss << L'-' << ul1;
  59   err = ios_base::goodbit;
  60   end = ng.get(ss.rdbuf(), 0, ss, err, ul0);
  61   VERIFY( err == ios_base::eofbit );
  62   VERIFY( ul0 == 1 );
  63
  64   ss.clear();
  65   ss.str(empty);
  66   ss << L'-' << ul1 << L'0';
  67   err = ios_base::goodbit;
  68   end = ng.get(ss.rdbuf(), 0, ss, err, ul0);
  69   VERIFY( err == (ios_base::eofbit | ios_base::failbit) );
  70   VERIFY( ul0 == ul1 );
  71 }
  72
  73 int main()
  74 {
  75   test01();
  76   return 0;
  77 }