libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/10132-2.cc

   1 // 2003-04-24 bkoz
   2
   3 // Copyright (C) 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 27.8.1.1 - Template class basic_filebuf
  22 // NB: This file is for testing basic_filebuf with NO OTHER INCLUDES.
  23
  24 #include <fstream>
  25 #include <testsuite_hooks.h>
  26
  27 // libstdc++/10132, add on
  28 class gnu_char_type
  29 {
  30   unsigned long character;
  31 public:
  32   // operator ==
  33   bool
  34   operator==(const gnu_char_type& __lhs)
  35   { return character == __lhs.character; }
  36
  37   // operator <
  38   bool
  39   operator<(const gnu_char_type& __lhs)
  40   { return character < __lhs.character; }
  41
  42   // default ctor
  43   gnu_char_type() { }
  44
  45   // to_char_type
  46   gnu_char_type(const unsigned long& __l) : character(__l) { }
  47
  48   // to_int_type
  49   operator unsigned long() const { return character; }
  50 };
  51
  52 // char_traits specialization
  53 struct gnu_char_traits
  54 {
  55   typedef gnu_char_type char_type;
  56   typedef long                  int_type;
  57   typedef std::streamoff        off_type;
  58   typedef long                  state_type;
  59   typedef std::fpos<state_type> pos_type;
  60
  61   static void
  62   assign(char_type& __c1, const char_type& __c2) { }
  63
  64   static bool
  65   eq(const char_type& __c1, const char_type& __c2) { return true; }
  66
  67   static bool
  68   lt(const char_type& __c1, const char_type& __c2) { return true; }
  69
  70   static int
  71   compare(const char_type* __s1, const char_type* __s2, size_t __n)
  72   { return 0; }
  73
  74   static size_t
  75   length(const char_type* __s) { return 0; }
  76
  77   static const char_type*
  78   find(const char_type* __s, size_t __n, const char_type& __a)
  79   { return __s; }
  80
  81   static char_type*
  82   move(char_type* __s1, const char_type* __s2, size_t __n)
  83   { return __s1; }
  84
  85   static char_type*
  86   copy(char_type* __s1, const char_type* __s2, size_t __n)
  87   { return __s1; }
  88
  89   static char_type*
  90   assign(char_type* __s, size_t __n, char_type __a)
  91   { return __s; }
  92
  93   static char_type
  94   to_char_type(const int_type& __c)
  95   { return char_type(); }
  96
  97   static int_type
  98   to_int_type(const char_type& __c)
  99   { return int_type(); }
 100
 101   static bool
 102   eq_int_type(const int_type& __c1, const int_type& __c2)
 103   { return true; }
 104
 105   static int_type
 106   eof()
 107   { return int_type(); }
 108
 109   static int_type
 110   not_eof(const int_type& __c)
 111   { return int_type(); }
 112 };
 113
 114 void test07()
 115 {
 116   bool test __attribute__((unused)) = true;
 117   typedef std::basic_filebuf<gnu_char_type, gnu_char_traits> gnu_filebuf;
 118
 119   try
 120     {
 121       // Need codecvt facet for width argument in seekoff.
 122       gnu_filebuf obj;
 123       obj.pubseekoff(2, std::ios_base::beg);
 124     }
 125   catch(std::exception& obj)
 126     {
 127       test = false;
 128       VERIFY( test );
 129     }
 130 }
 131
 132 int main()
 133 {
 134   test07();
 135   return 0;
 136 }
 137
 138
 139
 140 // more surf!!!