libstdc++-v3/testsuite/27_io/basic_ios/cons/char/3.cc

   1 // 2001-06-05 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2002, 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  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 <sstream>
  33 #include <testsuite_hooks.h>
  34
  35 // char_traits specialization
  36 namespace std
  37 {
  38   template<>
  39     struct char_traits<unsigned short>
  40     {
  41       typedef unsigned short    char_type;
  42       // Unsigned as wint_t in unsigned.
  43       typedef unsigned long     int_type;
  44       typedef streampos         pos_type;
  45       typedef streamoff         off_type;
  46       typedef mbstate_t         state_type;
  47
  48       static void
  49       assign(char_type& __c1, const char_type& __c2)
  50       { __c1 = __c2; }
  51
  52       static bool
  53       eq(const char_type& __c1, const char_type& __c2)
  54       { return __c1 == __c2; }
  55
  56       static bool
  57       lt(const char_type& __c1, const char_type& __c2)
  58       { return __c1 < __c2; }
  59
  60       static int
  61       compare(const char_type* __s1, const char_type* __s2, size_t __n)
  62       {
  63         for (size_t __i = 0; __i < __n; ++__i)
  64           if (!eq(__s1[__i], __s2[__i]))
  65             return lt(__s1[__i], __s2[__i]) ? -1 : 1;
  66         return 0;
  67       }
  68
  69       static size_t
  70       length(const char_type* __s)
  71       {
  72         const char_type* __p = __s;
  73         while (__p)
  74           ++__p;
  75         return (__p - __s);
  76       }
  77
  78       static const char_type*
  79       find(const char_type* __s, size_t __n, const char_type& __a)
  80       {
  81         for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p)
  82           if (*__p == __a) return __p;
  83         return 0;
  84       }
  85
  86       static char_type*
  87       move(char_type* __s1, const char_type* __s2, size_t __n)
  88       { return (char_type*) memmove(__s1, __s2, __n * sizeof(char_type)); }
  89
  90       static char_type*
  91       copy(char_type* __s1, const char_type* __s2, size_t __n)
  92       { return (char_type*) memcpy(__s1, __s2, __n * sizeof(char_type)); }
  93
  94       static char_type*
  95       assign(char_type* __s, size_t __n, char_type __a)
  96       {
  97         for (char_type* __p = __s; __p < __s + __n; ++__p)
  98           assign(*__p, __a);
  99         return __s;
 100       }
 101
 102       static char_type
 103       to_char_type(const int_type&)
 104       { return char_type(); }
 105
 106       static int_type
 107       to_int_type(const char_type&) { return int_type(); }
 108
 109       static bool
 110       eq_int_type(const int_type& __c1, const int_type& __c2)
 111       { return __c1 == __c2; }
 112
 113       static int_type
 114       eof() { return static_cast<int_type>(-1); }
 115
 116       static int_type
 117       not_eof(const int_type& __c)
 118       { return eq_int_type(__c, eof()) ? int_type(0) : __c; }
 119     };
 120 } // namespace std
 121
 122 // Non-required instantiations don't have the required facets inbued,
 123 // by default, into the locale object.
 124 // See 27.4.4.1
 125
 126 void test02()
 127 {
 128   bool test __attribute__((unused)) = true;
 129
 130   // 02: Calls basic_ios::init, which may call ctype<char_type>...
 131   try
 132     {
 133       std::basic_string<unsigned short>         str;
 134       std::basic_ostringstream<unsigned short>  oss(str);
 135
 136       // Try each member functions for unformatted io.
 137       // put
 138       oss.put(324);
 139
 140       // write
 141       const unsigned short us[4] = {1246, 433, 520, 0};
 142       oss.write(us, 4);
 143
 144       // flush
 145       oss.flush();
 146     }
 147   catch(const std::bad_cast& obj)
 148     {
 149       // Should be able to do the above without calling fill() and
 150       // forcing a call to widen...
 151       test = false;
 152     }
 153   catch(...)
 154     {
 155       test = false;
 156     }
 157   VERIFY( test );
 158 }
 159
 160 #if !__GXX_WEAK__
 161 // Explicitly instantiate for systems with no COMDAT or weak support.
 162 template
 163   const std::basic_string<unsigned short>::size_type
 164   std::basic_string<unsigned short>::_Rep::_S_max_size;
 165
 166 template
 167   const unsigned short
 168   std::basic_string<unsigned short>::_Rep::_S_terminal;
 169 #endif
 170
 171 int main()
 172 {
 173   test02();
 174   return 0;
 175 }