libstdc++-v3/testsuite/tr1/6_containers/array/tuple_interface/tuple_element.cc

   1 // 2005-08-26  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005-2022 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 6.2.2 Class template array
  21
  22 #include <tr1/array>
  23 #include <tr1/type_traits>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   using namespace std::tr1;
  30
  31   {
  32     const size_t len = 3;
  33     typedef array<int, len> array_type;
  34     VERIFY( (is_same<tuple_element<0, array_type>::type, int>::value == true) );
  35     VERIFY( (is_same<tuple_element<1, array_type>::type, int>::value == true) );
  36     VERIFY( (is_same<tuple_element<2, array_type>::type, int>::value == true) );
  37   }
  38
  39   {
  40     const size_t len = 0;
  41     typedef array<int, len> array_type;
  42     VERIFY( (is_same<tuple_element<0, array_type>::type, int>::value == true) );
  43   }
  44 }
  45
  46 int main()
  47 {
  48   test01();
  49   return 0;
  50 }