libstdc++-v3/testsuite/23_containers/vector/ext_pointer/types/1.cc

   1 // Test for Container using non-standard pointer types.
   2
   3 // Copyright (C) 2008-2014 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 // This is a copy of vector/types/1.cc with altered allocator.
  22 // The operator+()s in this test initially failed the test -
  23 // they stress the accurate recognition, by the compiler,
  24 // of _Pointer_adapter's own pointer arithmetic functions,
  25 // which have to match perfectly on the int type to get
  26 // chosen by the compiler when it sees: _Pointer_adapter<T> + int, etc.
  27
  28 #include <vector>
  29 #include <ext/extptr_allocator.h>
  30
  31 namespace N
  32 {
  33   struct X { };
  34
  35   template<typename T>
  36     X operator+(T, std::size_t)
  37     { return X(); }
  38
  39   template<typename T>
  40     X operator-(T, T)
  41     { return X(); }
  42 }
  43
  44 int main()
  45 {
  46   std::vector<N::X, __gnu_cxx::_ExtPtr_allocator<N::X> > v(5);
  47   const std::vector<N::X, __gnu_cxx::_ExtPtr_allocator<N::X> > w(1);
  48
  49   v[0];
  50   w[0];
  51   v.size();
  52   v.capacity();
  53   v.resize(1);
  54   v.insert(v.begin(), N::X());
  55   v.insert(v.begin(), 1, N::X());
  56   v.insert(v.begin(), w.begin(), w.end());
  57   v = w;
  58
  59   return 0;
  60 }