libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/3983-fstream.cc

   1 // 2001-06-05 Benjamin Kosnik  <bkoz@redhat.com>
   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 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // 27.4.2.1.6 class ios_base::init
  31
  32 #include <fstream>
  33 #include <typeinfo>
  34 #include <testsuite_hooks.h>
  35
  36 // char_traits specialization
  37 namespace std
  38 {
  39   template<>
  40     struct char_traits<unsigned char>
  41     {
  42       typedef unsigned char     char_type;
  43       // Unsigned as wint_t in unsigned.
  44       typedef unsigned long     int_type;
  45       typedef streampos         pos_type;
  46       typedef streamoff         off_type;
  47       typedef mbstate_t         state_type;
  48
  49       static void
  50       assign(char_type& __c1, const char_type& __c2)
  51       { __c1 = __c2; }
  52
  53       static bool
  54       eq(const char_type& __c1, const char_type& __c2)
  55       { return __c1 == __c2; }
  56
  57       static bool
  58       lt(const char_type& __c1, const char_type& __c2)
  59       { return __c1 < __c2; }
  60
  61       static int
  62       compare(const char_type* __s1, const char_type* __s2, size_t __n)
  63       {
  64         for (size_t __i = 0; __i < __n; ++__i)
  65           if (!eq(__s1[__i], __s2[__i]))
  66             return lt(__s1[__i], __s2[__i]) ? -1 : 1;
  67         return 0;
  68       }
  69
  70       static size_t
  71       length(const char_type* __s)
  72       {
  73         const char_type* __p = __s;
  74         while (__p && *__p)
  75           ++__p;
  76         return (__p - __s);
  77       }
  78
  79       static const char_type*
  80       find(const char_type* __s, size_t __n, const char_type& __a)
  81       {
  82         for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p)
  83           if (*__p == __a) return __p;
  84         return 0;
  85       }
  86
  87       static char_type*
  88       move(char_type* __s1, const char_type* __s2, size_t __n)
  89       { return (char_type*) memmove(__s1, __s2, __n * sizeof(char_type)); }
  90
  91       static char_type*
  92       copy(char_type* __s1, const char_type* __s2, size_t __n)
  93       { return (char_type*) memcpy(__s1, __s2, __n * sizeof(char_type)); }
  94
  95       static char_type*
  96       assign(char_type* __s, size_t __n, char_type __a)
  97       {
  98         for (char_type* __p = __s; __p < __s + __n; ++__p)
  99           assign(*__p, __a);
 100         return __s;
 101       }
 102
 103       static char_type
 104       to_char_type(const int_type& __c)
 105       { return char_type(); }
 106
 107       static int_type
 108       to_int_type(const char_type& __c) { return int_type(); }
 109
 110       static bool
 111       eq_int_type(const int_type& __c1, const int_type& __c2)
 112       { return __c1 == __c2; }
 113
 114       static int_type
 115       eof() { return static_cast<int_type>(-1); }
 116
 117       static int_type
 118       not_eof(const int_type& __c)
 119       { return eq_int_type(__c, eof()) ? int_type(0) : __c; }
 120     };
 121 } // namespace std
 122
 123 // libstdc++/3983
 124 // Sentry uses locale info, so have to try one formatted input/output.
 125 void test03()
 126 {
 127   using namespace std;
 128   bool test __attribute__((unused)) = true;
 129
 130   // input streams
 131   basic_ifstream<unsigned char> ifs_uc;
 132   unsigned char arr[6] = { 'a', 'b', 'c', 'd', 'e' };
 133
 134   try
 135     {
 136       int i;
 137       ifs_uc >> i;
 138     }
 139   catch (bad_cast& obj)
 140     { }
 141   catch (exception& obj)
 142     { test = false; }
 143
 144   try
 145     {
 146       ifs_uc >> arr;
 147     }
 148   catch (bad_cast& obj)
 149     { }
 150   catch (exception& obj)
 151     { test = false; }
 152
 153   try
 154     {
 155       ifs_uc >> ws;
 156     }
 157   catch (bad_cast& obj)
 158     { }
 159   catch (exception& obj)
 160     { test = false; }
 161
 162   try
 163     {
 164       basic_string<unsigned char> s_uc(arr);
 165       ifs_uc >> s_uc;
 166     }
 167   catch (bad_cast& obj)
 168     { }
 169   catch (exception& obj)
 170     { test = false; }
 171
 172   VERIFY( test );
 173 }
 174
 175 #if !__GXX_WEAK__
 176 // Explicitly instantiate for systems with no COMDAT or weak support.
 177 template
 178   std::basic_string<unsigned char>::size_type
 179   std::basic_string<unsigned char>::_Rep::_S_max_size;
 180
 181 template
 182   unsigned char
 183   std::basic_string<unsigned char>::_Rep::_S_terminal;
 184 #endif
 185
 186 int main()
 187 {
 188   test03();
 189   return 0;
 190 }