libstdc++-v3/testsuite/24_iterators/range_access_cpp14.cc

   1 // { dg-do run { target c++14 } }
   2
   3 // Copyright (C) 2015-2016 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 // 24.6.5, range access [iterator.range]
  21
  22 #include <iterator>
  23 #include <vector>
  24 #include <testsuite_hooks.h>
  25
  26 bool test __attribute__((unused)) = true;
  27
  28 void
  29 test01()
  30 {
  31   int i[1];
  32   VERIFY(std::cbegin(i) == i);
  33   VERIFY(std::cend(i) == i+1);
  34   VERIFY(std::rbegin(i) == std::reverse_iterator<int*>(i+1));
  35   VERIFY(std::rend(i) == std::reverse_iterator<int*>(i));
  36   VERIFY(std::crbegin(i) == std::reverse_iterator<int*>(i+1));
  37   VERIFY(std::crend(i) == std::reverse_iterator<int*>(i));
  38 }
  39
  40 void
  41 test02()
  42 {
  43   static int i[1];
  44   constexpr auto b  __attribute__((unused)) = std::begin(i);
  45   constexpr auto e  __attribute__((unused)) = std::end(i);
  46   constexpr auto cb __attribute__((unused)) = std::cbegin(i);
  47   constexpr auto ce __attribute__((unused)) = std::cend(i);
  48 }
  49
  50 void
  51 test03()
  52 {
  53   std::initializer_list<int> il{1};
  54   VERIFY(std::cbegin(il) == il.begin());
  55   VERIFY(std::cend(il) == il.end());
  56   VERIFY(std::rbegin(il) == std::reverse_iterator<const int*>(il.end()));
  57   VERIFY(std::rend(il) == std::reverse_iterator<const int*>(il.begin()));
  58   VERIFY(std::crbegin(il) == std::reverse_iterator<const int*>(il.end()));
  59   VERIFY(std::crend(il) == std::reverse_iterator<const int*>(il.begin()));
  60 }
  61
  62 void
  63 test04()
  64 {
  65   std::vector<int> v{1};
  66   VERIFY(std::cbegin(v) == v.cbegin());
  67   VERIFY(std::cend(v) == v.cend());
  68   VERIFY(std::rbegin(v) == v.rbegin());
  69   VERIFY(std::rend(v) == v.rend());
  70   VERIFY(std::crbegin(v) == v.crbegin());
  71   VERIFY(std::crend(v) == v.crend());
  72 }
  73
  74 int
  75 main()
  76 {
  77   test01();
  78   test02();
  79   test03();
  80   test04();
  81 }