libstdc++-v3/testsuite/22_locale/num_get/get/wchar_t/7.cc

   1 // 2003-10-25  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2003-2020 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 #include <locale>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void test01()
  27 {
  28   using namespace std;
  29   typedef istreambuf_iterator<wchar_t> iterator_type;
  30
  31   // cache the num_get facet
  32   wistringstream iss;
  33   const num_get<wchar_t>& ng = use_facet<num_get<wchar_t> >(iss.getloc());
  34   ios_base::iostate err = ios_base::goodbit;
  35   iterator_type end;
  36   double d;
  37
  38   iss.str(L"+e3");
  39   end = ng.get(iss.rdbuf(), 0, iss, err, d);
  40   VERIFY( err == ios_base::failbit );
  41   VERIFY( *end == L'e' );
  42
  43   iss.str(L".e+1");
  44   iss.clear();
  45   err = ios_base::goodbit;
  46   end = ng.get(iss.rdbuf(), 0, iss, err, d);
  47   VERIFY( err == ios_base::failbit );
  48   VERIFY( *end == L'e' );
  49 }
  50
  51 int main()
  52 {
  53   test01();
  54   return 0;
  55 }