libstdc++-v3/testsuite/27_io/filebuf.cc

   1 // 1999-01-17 bkoz test functionality of basic_filebuf for char_type == char
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 // 27.8.1.1 - Template class basic_filebuf
  23 // NB: This file is for testing basic_filebuf with NO OTHER INCLUDES.
  24
  25 #include <fstream>
  26 #include <testsuite_hooks.h>
  27
  28 // { dg-do compile }
  29
  30 // libstdc++/7216
  31 void test01()
  32 {
  33   // Check for required typedefs
  34   typedef std::filebuf test_type;
  35   typedef test_type::char_type char_type;
  36   typedef test_type::traits_type traits_type;
  37   typedef test_type::int_type int_type;
  38   typedef test_type::pos_type pos_type;
  39   typedef test_type::off_type off_type;
  40 }
  41
  42 // test05
  43 // libstdc++/1886
  44 // should be able to instantiate basic_filebuf for non-standard types.
  45 namespace test
  46 {
  47   using namespace std;
  48   typedef short type_t;
  49   template class basic_filebuf<type_t, char_traits<type_t> >;
  50   template class basic_filebuf<gnu_char, char_traits<gnu_char> >;
  51 } // test
  52
  53
  54 // test07
  55 // libstdc++/2020
  56 // should be able to use custom char_type
  57 class gnu_char_type
  58 {
  59   unsigned long character;
  60 public:
  61   // operator ==
  62   bool
  63   operator==(const gnu_char_type& __lhs)
  64   { return character == __lhs.character; }
  65
  66   // operator <
  67   bool
  68   operator<(const gnu_char_type& __lhs)
  69   { return character < __lhs.character; }
  70
  71   // default ctor
  72   gnu_char_type() { }
  73
  74   // to_char_type
  75   gnu_char_type(const unsigned long& __l) : character(__l) { }
  76
  77   // to_int_type
  78   operator unsigned long() const { return character; }
  79 };
  80
  81 void test07()
  82 {
  83   bool test = true;
  84   typedef std::basic_filebuf<gnu_char_type> gnu_filebuf;
  85
  86   try
  87     { gnu_filebuf obj; }
  88   catch(std::exception& obj)
  89     {
  90       test = false;
  91       VERIFY( test );
  92     }
  93 }
  94
  95 #if !__GXX_WEAK__
  96 // Explicitly instantiate for systems with no COMDAT or weak support.
  97 template
  98   std::basic_streambuf<gnu_char_type>::int_type
  99   std::basic_streambuf<gnu_char_type>::_S_pback_size;
 100 #endif
 101
 102 int main()
 103 {
 104   test01();
 105   test07();
 106   return 0;
 107 }
 108
 109
 110
 111 // more surf!!!
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