libstdc++-v3/testsuite/22_locale/num_put/put/char/4.cc

   1 // 2001-11-19 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2019 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 // 22.2.2.2.1  num_put members
  21
  22 #include <locale>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void test04()
  27 {
  28   using namespace std;
  29
  30   // Check num_put works with other iterators besides streambuf
  31   // output iterators. (As long as output_iterator requirements are met.)
  32   typedef string::iterator iter_type;
  33   typedef char_traits<char> traits;
  34   typedef num_put<char, iter_type> num_put_type;
  35   const locale loc_c = locale::classic();
  36   const string str("1798 Lady Elgin");
  37   const string x(18, 'x'); // have to have allocated string!
  38                            // allow for "0x" + 16 hex digits (64-bit pointer)
  39   string res;
  40
  41   ostringstream oss;
  42   oss.imbue(locale(loc_c, new num_put_type));
  43
  44   // Iterator advanced, state, output.
  45   const num_put_type& tp = use_facet<num_put_type>(oss.getloc());
  46
  47   // 01 put(long)
  48   // 02 put(long double)
  49   // 03 put(bool)
  50   // 04 put(void*)
  51
  52   // 01 put(long)
  53   const long l = 1798;
  54   res = x;
  55   iter_type ret1 = tp.put(res.begin(), oss, ' ', l);
  56   string sanity1(res.begin(), ret1);
  57   VERIFY( res == "1798xxxxxxxxxxxxxx" );
  58   VERIFY( sanity1 == "1798" );
  59
  60   // 02 put(long double)
  61   const long double ld = 1798.0;
  62   res = x;
  63   iter_type ret2 = tp.put(res.begin(), oss, ' ', ld);
  64   string sanity2(res.begin(), ret2);
  65   VERIFY( res == "1798xxxxxxxxxxxxxx" );
  66   VERIFY( sanity2 == "1798" );
  67
  68   // 03 put(bool)
  69   bool b = 1;
  70   res = x;
  71   iter_type ret3 = tp.put(res.begin(), oss, ' ', b);
  72   string sanity3(res.begin(), ret3);
  73   VERIFY( res == "1xxxxxxxxxxxxxxxxx" );
  74   VERIFY( sanity3 == "1" );
  75
  76   b = 0;
  77   res = x;
  78   oss.setf(ios_base::boolalpha);
  79   iter_type ret4 = tp.put(res.begin(), oss, ' ', b);
  80   string sanity4(res.begin(), ret4);
  81   VERIFY( res == "falsexxxxxxxxxxxxx" );
  82   VERIFY( sanity4 == "false" );
  83
  84   // 04 put(void*)
  85   oss.clear();
  86   const void* cv = &ld;
  87   res = x;
  88   oss.setf(ios_base::fixed, ios_base::floatfield);
  89   iter_type ret5 = tp.put(res.begin(), oss, ' ', cv);
  90   string sanity5(res.begin(), ret5);
  91   VERIFY( sanity5.size() );
  92   VERIFY( sanity5[1] == 'x' );
  93 }
  94
  95 int main()
  96 {
  97   test04();
  98   return 0;
  99 }
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