gomp-20050608-branch/libstdc++-v3/testsuite/22_locale/facet/2.cc

   1 // { dg-require-namedlocale "" }
   2
   3 // 2000-08-31 Benjamin Kosnik <bkoz@redhat.com>
   4
   5 // Copyright (C) 2000, 2002, 2003, 2005 Free Software Foundation
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 2, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING.  If not, write to the Free
  20 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  21 // USA.
  22
  23 // 22.1.1.1.2 - class locale::facet [lib.locale.facet]
  24
  25 #include <cwchar> // for mbstate_t
  26 #include <locale>
  27 #include <stdexcept>
  28 #include <string>
  29 #include <iterator>
  30 #include <limits>
  31 #include <testsuite_hooks.h>
  32
  33 // Static counter for use in checking ctors/dtors.
  34 static std::size_t counter;
  35
  36 class surf : public std::locale::facet
  37 {
  38 public:
  39   static std::locale::id                id;
  40   surf(size_t refs = 0): std::locale::facet(refs) { ++counter; }
  41   ~surf() { --counter; }
  42 };
  43
  44 std::locale::id surf::id;
  45
  46 typedef surf facet_type;
  47
  48 void test02()
  49 {
  50   using namespace std;
  51   bool test __attribute__((unused)) = true;
  52
  53   // 1: Destroyed when out of scope.
  54   VERIFY( counter == 0 );
  55   {
  56     locale loc01(locale::classic(), new facet_type);
  57     VERIFY( counter == 1 );
  58   }
  59   VERIFY( counter == 0 );
  60
  61   // 2: Not destroyed when out of scope, deliberately leaked.
  62   VERIFY( counter == 0 );
  63   {
  64     // Default refs argument is zero.
  65     locale loc02(locale::classic(), new facet_type(1));
  66     VERIFY( counter == 1 );
  67   }
  68   VERIFY( counter == 1 );
  69
  70   // 3: Pathological.
  71   counter = 0;
  72   {
  73     // Test bounds.
  74     facet_type* f = new facet_type(numeric_limits<size_t>::max());
  75     VERIFY( counter == 1 );
  76     // Add a reference.
  77     locale loc01(locale::classic(), f);
  78     {
  79       // Add another reference...
  80       locale loc02(locale::classic(), f);
  81     }
  82     VERIFY( counter == 1 );
  83   }
  84
  85   // 4: Named locale should destroy facets when it goes out of scope.
  86   // Not quite sure how to test for this w/o valgrind at the moment.
  87   {
  88     locale loc03 = locale("es_MX");
  89   }
  90 }
  91
  92 int main ()
  93 {
  94   test02();
  95   return 0;
  96 }