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

// 2000-08-31 Benjamin Kosnik <bkoz@redhat.com>

// Copyright (C) 2000, 2002 Free Software Foundation
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// 22.1.1.1.2 - class locale::facet [lib.locale.facet]

#include <cwchar> // for mbstate_t
#include <locale>
#include <stdexcept>
#include <string>
#include <iterator>
#include <limits>
#include <testsuite_hooks.h>

// 1 a class if a facet if it is publicly derived from another facet
typedef std::istreambuf_iterator<char>		input_iterator;
typedef std::ostreambuf_iterator<char>		output_iterator;

class gnu_collate: public std::collate<char> { }; 
class gnu_ctype: public std::ctype<char> { }; 
class gnu_codecvt: public std::codecvt<char, char, std::mbstate_t> { }; 
class gnu_moneypunct: public std::moneypunct<char> { }; 
class gnu_moneypunct_true: public std::moneypunct<char, true> { }; 
class gnu_money_get: public std::money_get<char> { }; 
class gnu_money_put: public std::money_put<char> { }; 
class gnu_numpunct: public std::numpunct<char> { }; 
class gnu_num_get: public std::num_get<char> { }; 
class gnu_num_put: public std::num_put<char> { }; 
class gnu_time_get: public std::time_get<char> { }; 
class gnu_time_put: public std::time_put<char> { }; 
class gnu_messages: public std::messages<char> { }; 

class gnu_collate_byname: public std::collate_byname<char> 
{
public:
  explicit
  gnu_collate_byname(const char* c, size_t refs = 0)
  : std::collate_byname<char>(c, refs) { }
}; 

class gnu_ctype_byname: public std::ctype_byname<char> 
{
public:
  explicit
  gnu_ctype_byname(const char* c, size_t refs = 0)
  : std::ctype_byname<char>(c, refs) { }
}; 

class gnu_moneypunct_byname_true: public std::moneypunct_byname<char, true> 
{
public:
  explicit
  gnu_moneypunct_byname_true(const char* c, size_t refs = 0)
  : std::moneypunct_byname<char, true>(c, refs) { }
}; 

class gnu_moneypunct_byname_false: public std::moneypunct_byname<char, false> 
{
public:
  explicit
  gnu_moneypunct_byname_false(const char* c, size_t refs = 0)
  : std::moneypunct_byname<char, false>(c, refs) { }
}; 


class gnu_money_get_in: public std::money_get<char, input_iterator>
{
public:
  explicit
  gnu_money_get_in(size_t refs = 0)
  : std::money_get<char, input_iterator>(refs) { }
};

class gnu_money_put_out: public std::money_put<char, output_iterator>
{
public:
  explicit
  gnu_money_put_out(size_t refs = 0)
  : std::money_put<char, output_iterator>(refs) { }
};

class gnu_numpunct_byname: public std::numpunct_byname<char>
{
public:
  explicit
  gnu_numpunct_byname(const char* c, size_t refs = 0)
  : std::numpunct_byname<char>(c, refs) { }
};

class gnu_num_get_in: public std::num_get<char, input_iterator> 
{
public:
  explicit
  gnu_num_get_in(size_t refs = 0)
  : std::num_get<char, input_iterator>(refs) { }
};

class gnu_num_put_out: public std::num_put<char, output_iterator> 
{
public:
  explicit
  gnu_num_put_out(size_t refs = 0)
  : std::num_put<char, output_iterator>(refs) { }
};

class gnu_time_get_byname: public std::time_get_byname<char>
{
public:
  explicit
  gnu_time_get_byname(const char* c, size_t refs = 0)
  : std::time_get_byname<char>(c, refs) { }
};

class gnu_time_get_in: public std::time_get<char, input_iterator>
{
public:
  explicit
  gnu_time_get_in(size_t refs = 0)
  : std::time_get<char, input_iterator>(refs) { }
};

class gnu_time_put_byname: public std::time_put_byname<char> 
{
public:
  explicit
  gnu_time_put_byname(const char* c, size_t refs = 0)
  : std::time_put_byname<char>(c, refs) { }
};

class gnu_time_put_out: public std::time_put<char, output_iterator> 
{
public:
  explicit
  gnu_time_put_out(size_t refs = 0)
  : std::time_put<char, output_iterator>(refs) { }
};

class gnu_messages_byname: public std::messages_byname<char> 
{
public:
  explicit
  gnu_messages_byname(const char* c, size_t refs = 0)
  : std::messages_byname<char>(c, refs) { }
};


// 2 or if it is a class derived from locale:;facet and containing a
// publicly-accessible declaration as follows:
class gnu_facet: public std::locale::facet
{
public:
  static std::locale::id id;
};

std::locale::id gnu_facet::id;

void test01()
{
  bool test = true;
  const std::string name_no("*");
  const std::string name_c("C");

  try 
    {
      gnu_collate 			obj01;
      gnu_ctype 			obj02;
      gnu_codecvt 			obj03;
      gnu_moneypunct			obj04;
      gnu_moneypunct_true		obj05;
      gnu_money_get			obj06;
      gnu_money_put			obj07;
      gnu_numpunct			obj08;
      gnu_num_get			obj09;
      gnu_num_put			obj10;
      gnu_time_get			obj11;
      gnu_time_put			obj12;
      gnu_messages			obj13;
      gnu_time_put_out			obj14(0);
      gnu_time_put_byname		obj15("C", 0);
      gnu_time_get_in			obj16(0);
      gnu_time_get_byname		obj17("C", 0);
      gnu_num_put_out			obj18(0);
      gnu_num_get_in			obj19(0);
      gnu_numpunct_byname		obj20("C", 0);
      gnu_money_put_out			obj21(0);
      gnu_money_get_in			obj22(0);
      gnu_moneypunct_byname_false	obj23("C", 0);
      gnu_moneypunct_byname_true	obj24("C", 0);
      gnu_ctype_byname			obj25("C", 0);
      gnu_collate_byname		obj26("C", 0);
      gnu_messages_byname		obj27("C", 0);
    }
  catch (std::runtime_error& obj)
    { 
      // named locale not valid
      VERIFY( false );
    }
  catch (std::exception& obj)
    {
      // some other error
      VERIFY( false );
    }

  // 2
  try
    { 
      gnu_facet 			obj28; 
    }
  catch (std::runtime_error& obj)
    { 
      // named locale not valid
      VERIFY( false );
    }
  catch (std::exception& obj)
    {
      // some other error
      VERIFY( false );
    }
}

// Static counter for use in checking ctors/dtors.
static std::size_t counter;

class surf : public std::locale::facet
{
public:
  static std::locale::id 	       	id;
  surf(size_t refs = 0): std::locale::facet(refs) { ++counter; }
  ~surf() { --counter; }
};

std::locale::id surf::id;

typedef surf facet_type;

void test02()
{
  using namespace std;
  bool test = true;

  // 1: Destroyed when out of scope.
  VERIFY( counter == 0 );
  {
    locale loc01(locale::classic(), new facet_type);
    VERIFY( counter == 1 );
  }
  VERIFY( counter == 0 );

  // 2: Not destroyed when out of scope, deliberately leaked.
  VERIFY( counter == 0 );
  {
    // Default refs argument is zero.
    locale loc02(locale::classic(), new facet_type(1));
    VERIFY( counter == 1 );
  }
  VERIFY( counter == 1 );

  // 3: Pathological.
  counter = 0;
  {
    // Test bounds.
    facet_type* f = new facet_type(numeric_limits<size_t>::max());
    VERIFY( counter == 1 );
    // Add a reference.
    locale loc01(locale::classic(), f);
    {
      // Add another reference...
      locale loc02(locale::classic(), f);
    }
    VERIFY( counter == 1 );
  }

  // 4: Named locale should destroy facets when it goes out of scope.
  // Not quite sure how to test for this w/o valgrind at the moment.
  {
    locale loc03("es_MX");
  }
}

int main ()
{
  test01();

  test02();
  return 0;
}