libstdc++-v3/testsuite/23_containers/vector/ext_pointer/types/2.cc

   1 // Test for Container using non-standard pointer types.
   2
   3 // Copyright (C) 2011-2016 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
  21 // { dg-options "-std=gnu++11" }
  22
  23 // This is a copy of vector/types/1.cc with altered allocator.
  24 // The operator+()s in this test initially failed the test -
  25 // they stress the accurate recognition, by the compiler,
  26 // of _Pointer_adapter's own pointer arithmetic functions,
  27 // which have to match perfectly on the int type to get
  28 // chosen by the compiler when it sees: _Pointer_adapter<T> + int, etc.
  29
  30 #include <vector>
  31 #include <ext/extptr_allocator.h>
  32
  33 namespace N
  34 {
  35   struct X { };
  36
  37   template<typename T>
  38     X operator+(T, std::size_t)
  39     { return X(); }
  40
  41   template<typename T>
  42     X operator-(T, T)
  43     { return X(); }
  44 }
  45
  46 int main()
  47 {
  48   std::vector<N::X, __gnu_cxx::_ExtPtr_allocator<N::X> > v(5);
  49   const std::vector<N::X, __gnu_cxx::_ExtPtr_allocator<N::X> > w(1);
  50
  51   v[0];
  52   w[0];
  53   v.size();
  54   v.capacity();
  55   v.resize(1);
  56   v.insert(v.begin(), N::X());
  57   v.insert(v.begin(), 1, N::X());
  58   v.insert(v.begin(), w.begin(), w.end());
  59   v = w;
  60
  61   return 0;
  62 }