libstdc++-v3/testsuite/22_locale/num_get/get/char/39168.cc

   1 // Copyright (C) 2009-2019 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 <sstream>
  21 #include <locale>
  22 #include <climits>
  23 #include <testsuite_hooks.h>
  24
  25 class my_numpunct: public std::numpunct<char>
  26 {
  27 protected:
  28   std::string do_grouping() const { return std::string(1, CHAR_MAX); }
  29 };
  30
  31 // libstdc++/39168
  32 void test01()
  33 {
  34   using namespace std;
  35   typedef istreambuf_iterator<char> iterator_type;
  36
  37   istringstream iss;
  38   iss.imbue(locale(iss.getloc(), new my_numpunct));
  39   const num_get<char>& ng = use_facet<num_get<char> >(iss.getloc());
  40
  41   long double l = -1;
  42   ios_base::iostate err = ios_base::goodbit;
  43
  44   iss.str("123,456");
  45   iterator_type end = ng.get(iss.rdbuf(), 0, iss, err, l);
  46   VERIFY( err == ios_base::goodbit );
  47   VERIFY( l == 123 );
  48   VERIFY( *end == ',' );
  49 }
  50
  51 int main()
  52 {
  53   test01();
  54   return 0;
  55 }