libstdc++-v3/testsuite/22_locale/num_put/put/char/2.cc

   1 // 2001-11-19 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 // 22.2.2.2.1  num_put members
  21
  22 #include <locale>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void test02()
  27 {
  28   using namespace std;
  29   typedef ostreambuf_iterator<char> iterator_type;
  30
  31   // basic construction
  32   locale loc_c = locale::classic();
  33
  34   // sanity check the data is correct.
  35   const string empty;
  36   string result1;
  37   string result2;
  38
  39   bool b1 = true;
  40   bool b0 = false;
  41   unsigned long ul1 = 1294967294;
  42   unsigned long ul2 = 0;
  43
  44   // cache the num_put facet
  45   ostringstream oss;
  46   oss.imbue(loc_c);
  47   const num_put<char>& np = use_facet<num_put<char> >(oss.getloc());
  48
  49   // C
  50   // bool, more twisted examples
  51   oss.str(empty);
  52   oss.width(20);
  53   oss.setf(ios_base::right, ios_base::adjustfield);
  54   np.put(oss.rdbuf(), oss, '+', b0);
  55   result1 = oss.str();
  56   VERIFY( result1 == "+++++++++++++++++++0" );
  57
  58   oss.str(empty);
  59   oss.width(20);
  60   oss.setf(ios_base::left, ios_base::adjustfield);
  61   oss.setf(ios_base::boolalpha);
  62   np.put(oss.rdbuf(), oss, '+', b1);
  63   result2 = oss.str();
  64   VERIFY( result2 == "true++++++++++++++++" );
  65
  66   // unsigned long, in a locale that does not group
  67   oss.imbue(loc_c);
  68   oss.str(empty);
  69   oss.clear();
  70   np.put(oss.rdbuf(), oss, '+', ul1);
  71   result1 = oss.str();
  72   VERIFY( result1 == "1294967294" );
  73
  74   oss.str(empty);
  75   oss.clear();
  76   oss.width(20);
  77   oss.setf(ios_base::left, ios_base::adjustfield);
  78   np.put(oss.rdbuf(), oss, '+', ul2);
  79   result1 = oss.str();
  80   VERIFY( result1 == "0+++++++++++++++++++" );
  81 }
  82
  83 int main()
  84 {
  85   test02();
  86   return 0;
  87 }
  88
  89