libstdc++-v3/testsuite/22_locale/num_put/put/wchar_t/8.cc

   1 // Copyright (C) 2003-2016 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 // 22.2.2.2.1  num_put members
  19
  20 #include <locale>
  21 #include <sstream>
  22 #include <testsuite_hooks.h>
  23
  24 struct Ctype: std::ctype<wchar_t>
  25 {
  26   wchar_t
  27   do_widen(char c) const
  28   { return L'A' + c % 26; }
  29
  30   const char*
  31   do_widen(const char* lo, const char* hi, wchar_t* to) const
  32   {
  33     for (; lo != hi; *to++ = Ctype::do_widen(*lo++));
  34     return hi;
  35   }
  36 };
  37
  38 // See http://gcc.gnu.org/ml/libstdc++/2003-11/msg00154.html
  39 void test01()
  40 {
  41   using namespace std;
  42   bool test __attribute__((unused)) = true;
  43
  44   wostringstream oss;
  45   oss.imbue(locale(locale::classic(), new Ctype));
  46   const num_put<wchar_t>& np = use_facet<num_put<wchar_t> >(oss.getloc());
  47
  48   const wstring empty;
  49   wstring result;
  50   long inum = 123;
  51   double fnum = 123.456;
  52
  53   np.put(oss.rdbuf(), oss, L'+', inum);
  54   result = oss.str();
  55   VERIFY( result == L"XYZ" );
  56
  57   oss.clear();
  58   oss.str(empty);
  59   np.put(oss.rdbuf(), oss, L'+', fnum);
  60   result = oss.str();
  61   VERIFY( result == L"XYZ.ABC" );
  62 }
  63
  64 int main()
  65 {
  66   test01();
  67 }