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

   1 // { dg-require-namedlocale "es_MX" }
   2
   3 // 2000-08-31 Benjamin Kosnik <bkoz@redhat.com>
   4
   5 // Copyright (C) 2000, 2002, 2003, 2005, 2009 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 3, 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 COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // 22.1.1.1.2 - class locale::facet [lib.locale.facet]
  23
  24 #include <cwchar> // for mbstate_t
  25 #include <locale>
  26 #include <stdexcept>
  27 #include <string>
  28 #include <iterator>
  29 #include <limits>
  30 #include <testsuite_hooks.h>
  31
  32 // Static counter for use in checking ctors/dtors.
  33 static std::size_t counter;
  34
  35 class surf : public std::locale::facet
  36 {
  37 public:
  38   static std::locale::id                id;
  39   surf(size_t refs = 0): std::locale::facet(refs) { ++counter; }
  40   ~surf() { --counter; }
  41 };
  42
  43 std::locale::id surf::id;
  44
  45 typedef surf facet_type;
  46
  47 void test02()
  48 {
  49   using namespace std;
  50   bool test __attribute__((unused)) = true;
  51
  52   // 1: Destroyed when out of scope.
  53   VERIFY( counter == 0 );
  54   {
  55     locale loc01(locale::classic(), new facet_type);
  56     VERIFY( counter == 1 );
  57   }
  58   VERIFY( counter == 0 );
  59
  60   // 2: Not destroyed when out of scope, deliberately leaked.
  61   VERIFY( counter == 0 );
  62   {
  63     // Default refs argument is zero.
  64     locale loc02(locale::classic(), new facet_type(1));
  65     VERIFY( counter == 1 );
  66   }
  67   VERIFY( counter == 1 );
  68
  69   // 3: Pathological.
  70   counter = 0;
  71   {
  72     // Test bounds.
  73     facet_type* f = new facet_type(numeric_limits<size_t>::max());
  74     VERIFY( counter == 1 );
  75     // Add a reference.
  76     locale loc01(locale::classic(), f);
  77     {
  78       // Add another reference...
  79       locale loc02(locale::classic(), f);
  80     }
  81     VERIFY( counter == 1 );
  82   }
  83
  84   // 4: Named locale should destroy facets when it goes out of scope.
  85   // Not quite sure how to test for this w/o valgrind at the moment.
  86   {
  87     locale loc03 = locale("es_MX");
  88   }
  89 }
  90
  91 int main ()
  92 {
  93   test02();
  94   return 0;
  95 }