libstdc++-v3/testsuite/22_locale/num_get/get/char/4.cc

   1 // 2001-11-21 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2022 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 // 2002-01-10  David Seymour  <seymour_dj@yahoo.com>
  27 // libstdc++/5331
  28 void test04()
  29 {
  30   using namespace std;
  31
  32   // Check num_get works with other iterators besides streambuf
  33   // output iterators. (As long as output_iterator requirements are met.)
  34   typedef string::const_iterator iter_type;
  35   typedef num_get<char, iter_type> num_get_type;
  36   const ios_base::iostate goodbit = ios_base::goodbit;
  37   ios_base::iostate err = ios_base::goodbit;
  38   const locale loc_c = locale::classic();
  39   const string str("20000106 Elizabeth Durack");
  40   const string str2("0 true 0xbffff74c Durack");
  41
  42   istringstream iss; // need an ios, add my num_get facet
  43   iss.imbue(locale(loc_c, new num_get_type));
  44
  45   // Iterator advanced, state, output.
  46   const num_get_type& ng = use_facet<num_get_type>(iss.getloc());
  47
  48   // 01 get(long)
  49   // 02 get(long double)
  50   // 03 get(bool)
  51   // 04 get(void*)
  52
  53   // 01 get(long)
  54   long i = 0;
  55   err = goodbit;
  56   iter_type end1 = ng.get(str.begin(), str.end(), iss, err, i);
  57   string rem1(end1, str.end());
  58   VERIFY( err == goodbit );
  59   VERIFY( i == 20000106);
  60   VERIFY( rem1 == " Elizabeth Durack" );
  61
  62   // 02 get(long double)
  63   long double ld = 0.0;
  64   err = goodbit;
  65   iter_type end2 = ng.get(str.begin(), str.end(), iss, err, ld);
  66   string rem2(end2, str.end());
  67   VERIFY( err == goodbit );
  68   VERIFY( ld == 20000106);
  69   VERIFY( rem2 == " Elizabeth Durack" );
  70
  71   // 03 get(bool)
  72   bool b = 1;
  73   iss.clear();
  74   err = goodbit;
  75   iter_type end3 = ng.get(str2.begin(), str2.end(), iss, err, b);
  76   string rem3(end3, str2.end());
  77   VERIFY( err == goodbit );
  78   VERIFY( b == 0 );
  79   VERIFY( rem3 == " true 0xbffff74c Durack" );
  80
  81   iss.clear();
  82   err = goodbit;
  83   iss.setf(ios_base::boolalpha);
  84   iter_type end4 = ng.get(++end3, str2.end(), iss, err, b);
  85   string rem4(end4, str2.end());
  86   VERIFY( err == goodbit );
  87   VERIFY( b == true );
  88   VERIFY( rem4 == " 0xbffff74c Durack" );
  89
  90   // 04 get(void*)
  91   void* v;
  92   iss.clear();
  93   err = goodbit;
  94   iss.setf(ios_base::fixed, ios_base::floatfield);
  95   iter_type end5 = ng.get(++end4, str2.end(), iss, err, v);
  96   string rem5(end5, str2.end());
  97   VERIFY( err == goodbit );
  98   VERIFY( b == true );
  99   VERIFY( rem5 == " Durack" );
 100 }
 101
 102 int main()
 103 {
 104   test04();
 105   return 0;
 106 }
 107
 108
 109 // Kathleen Hannah, humanitarian, woman, art-thief