libstdc++-v3/testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc

   1 // Copyright (C) 2020-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // C++20 29.8.5.2  basic_stringstream constructors  [stringstream.cons]
  19
  20 // { dg-do run { target c++20 } }
  21 // { dg-require-effective-target cxx11_abi }
  22
  23 #include <sstream>
  24 #include <string>
  25 #include <testsuite_allocator.h>
  26 #include <testsuite_hooks.h>
  27
  28 void
  29 test01()
  30 {
  31   std::wistringstream::allocator_type a;
  32   std::wistringstream stm(std::ios_base::in, a);
  33 }
  34
  35 auto const cstr = L"This is a test";
  36
  37 void
  38 test02()
  39 {
  40   std::wstring s1(cstr);
  41   std::wistringstream stm(std::move(s1));
  42   VERIFY( s1.empty() );
  43
  44   std::wstring s2(cstr);
  45   VERIFY( stm.str() == s2 );
  46 }
  47
  48 void
  49 test03()
  50 {
  51   using C = wchar_t;
  52   using alloc_type = __gnu_test::uneq_allocator<C>;
  53   using traits_type = std::char_traits<C>;
  54   using string = std::basic_string<C, traits_type, alloc_type>;
  55   using stringstream = std::basic_stringstream<C, traits_type, alloc_type>;
  56
  57   auto const mode = std::ios_base::in;
  58   alloc_type a1(1);
  59   const string s1(cstr, a1);
  60
  61   // basic_stringstream()
  62   {
  63     alloc_type a0;
  64     stringstream ss;
  65     VERIFY( ss.str().empty() );
  66     VERIFY( ss.rdbuf()->get_allocator() == a0 );
  67     VERIFY( ss.str().get_allocator() == a0 );
  68   }
  69
  70   // basic_stringstream(openmode)
  71   {
  72     alloc_type a0;
  73     stringstream ss(mode);
  74     VERIFY( ss.str().empty() );
  75     VERIFY( ss.rdbuf()->get_allocator() == a0 );
  76     VERIFY( ss.str().get_allocator() == a0 );
  77   }
  78
  79   // basic_stringstream(const basic_string<C,T,A>&, openmode = in)
  80   {
  81     stringstream ss(s1);
  82     VERIFY( ss.str() == cstr );
  83     VERIFY( ss.rdbuf()->get_allocator() == a1 );
  84     VERIFY( ss.str().get_allocator() == a1 );
  85   }
  86
  87   // basic_stringstream(const basic_string<C,T,A>&, openmode = in)
  88   {
  89     stringstream ss(s1, mode);
  90     VERIFY( ss.str() == cstr );
  91     VERIFY( ss.rdbuf()->get_allocator() == a1 );
  92     VERIFY( ss.str().get_allocator() == a1 );
  93   }
  94
  95   // basic_stringstream(openmode, const A&)
  96   {
  97     stringstream ss(mode, a1);
  98     VERIFY( ss.str().empty() );
  99     VERIFY( ss.rdbuf()->get_allocator() == a1 );
 100     VERIFY( ss.str().get_allocator() == a1 );
 101   }
 102
 103   // basic_stringstream(basic_string<C,T,A>&&, openmode = in)
 104   {
 105     stringstream ss(string{s1});
 106     VERIFY( ss.str() == s1 );
 107     VERIFY( ss.rdbuf()->get_allocator() == a1 );
 108     VERIFY( ss.str().get_allocator() == a1 );
 109   }
 110
 111   // basic_stringstream(basic_string<C,T,A>&&, openmode = in)
 112   {
 113     stringstream ss(string(s1), mode);
 114     VERIFY( ss.str() == s1 );
 115     VERIFY( ss.rdbuf()->get_allocator() == a1 );
 116     VERIFY( ss.str().get_allocator() == a1 );
 117   }
 118
 119   // basic_stringstream(const basic_string<C,T,SA>&, const A&)
 120   {
 121     alloc_type a2(2);
 122     stringstream ss(s1, a2);
 123     VERIFY( ss.str() == s1 );
 124     VERIFY( ss.rdbuf()->get_allocator() == a2 );
 125     VERIFY( ss.str().get_allocator() == a2 );
 126   }
 127
 128   // basic_stringstream(const basic_string<C,T,SA>&, const A&)
 129   {
 130     alloc_type a2(2);
 131     const std::wstring s2 = cstr;
 132     stringstream ss(s2, a2);
 133     VERIFY( ss.str() == cstr );
 134     VERIFY( ss.rdbuf()->get_allocator() == a2 );
 135     VERIFY( ss.str().get_allocator() == a2 );
 136   }
 137
 138   // basic_stringstream(const basic_string<C,T,SA>&, openmode, const A&)
 139   {
 140     alloc_type a2(2);
 141     stringstream ss(s1, mode, a2);
 142     VERIFY( ss.str() == s1 );
 143     VERIFY( ss.rdbuf()->get_allocator() == a2 );
 144     VERIFY( ss.str().get_allocator() == a2 );
 145   }
 146
 147   // basic_stringstream(const basic_string<C,T,SA>&, openmode, const A&)
 148   {
 149     alloc_type a2(2);
 150     const std::wstring s2 = cstr;
 151     stringstream ss(s2, mode, a2);
 152     VERIFY( ss.str() == cstr );
 153     VERIFY( ss.rdbuf()->get_allocator() == a2 );
 154     VERIFY( ss.str().get_allocator() == a2 );
 155   }
 156
 157   // basic_stringstream(const basic_string<C,T,SA>&, openmode = in)
 158   {
 159     alloc_type a0;
 160     const std::wstring s2 = cstr;
 161     stringstream ss(s2, mode);
 162     VERIFY( ss.str() == cstr );
 163     VERIFY( ss.rdbuf()->get_allocator() == a0 );
 164     VERIFY( ss.str().get_allocator() == a0 );
 165   }
 166 }
 167
 168 int
 169 main()
 170 {
 171   test01();
 172   test02();
 173   test03();
 174   return 0;
 175 }