libstdc++-v3/testsuite/24_iterators/ostreambuf_iterator/requirements/typedefs.cc

   1 // { dg-do compile }
   2 // 2001-04-30  Benjamin Kosnik  <bkoz@redhat.com>
   3
   4 // Copyright (C) 2001-2024 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 3, 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 COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 24.5.4 template class ostreambuf_iterator
  22
  23 #include <sstream>
  24 #include <iterator>
  25 #include <testsuite_hooks.h>
  26
  27 void test01()
  28 {
  29   using namespace std;
  30
  31   // Check for required typedefs
  32   typedef ostreambuf_iterator<char> test_iterator;
  33   typedef test_iterator::value_type value_type;
  34   typedef test_iterator::difference_type difference_type;
  35   typedef test_iterator::pointer pointer;
  36   typedef test_iterator::reference reference;
  37   typedef test_iterator::iterator_category iteratory_category;
  38
  39   typedef test_iterator::char_type char_type;
  40   typedef test_iterator::traits_type traits_type;
  41   typedef test_iterator::ostream_type ostream_type;
  42   typedef test_iterator::streambuf_type streambuf_type;
  43 }
  44
  45 #if __cplusplus >= 201103L
  46 void test02()
  47 {
  48   using namespace std;
  49
  50   using test_type = ostreambuf_iterator<char>;
  51   static_assert(is_same<test_type::value_type, void>::value, "");
  52 #if __cplusplus <= 201703L
  53   static_assert(is_same<test_type::difference_type, void>::value, "");
  54 #else
  55   static_assert(is_same<test_type::difference_type, ptrdiff_t>::value, "");
  56 #endif
  57   static_assert(is_same<test_type::pointer, void>::value, "");
  58   static_assert(is_same<test_type::reference, void>::value, "");
  59   static_assert(is_same<test_type::iterator_category, output_iterator_tag>::value, "");
  60
  61   static_assert(is_same<test_type::char_type, char>::value, "");
  62   static_assert(is_same<test_type::traits_type, char_traits<char>>::value, "");
  63   static_assert(is_same<test_type::ostream_type, ostream>::value, "");
  64   static_assert(is_same<test_type::streambuf_type, streambuf>::value, "");
  65 }
  66
  67 #ifdef _GLIBCXX_USE_WCHAR_T
  68 void test03()
  69 {
  70   using namespace std;
  71
  72   using test_type = ostreambuf_iterator<wchar_t>;
  73   static_assert(is_same<test_type::value_type, void>::value, "");
  74 #if __cplusplus <= 201703L
  75   static_assert(is_same<test_type::difference_type, void>::value, "");
  76 #else
  77   static_assert(is_same<test_type::difference_type, ptrdiff_t>::value, "");
  78 #endif
  79   static_assert(is_same<test_type::pointer, void>::value, "");
  80   static_assert(is_same<test_type::reference, void>::value, "");
  81   static_assert(is_same<test_type::iterator_category, output_iterator_tag>::value, "");
  82
  83   static_assert(is_same<test_type::char_type, wchar_t>::value, "");
  84   static_assert(is_same<test_type::traits_type, char_traits<wchar_t>>::value, "");
  85   static_assert(is_same<test_type::ostream_type, wostream>::value, "");
  86   static_assert(is_same<test_type::streambuf_type, wstreambuf>::value, "");
  87 }
  88 #endif
  89 #endif