libstdc++-v3/testsuite/20_util/specialized_algorithms/uninitialized_copy/808590-cxx11.cc

   1 // Copyright (C) 2012-2020 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 // { dg-do run { target c++11 } }
  19
  20 // This is identical to ./808590.cc but for C++11 and later.
  21 // See https://gcc.gnu.org/ml/libstdc++/2014-05/msg00027.html
  22
  23 #include <vector>
  24 #include <stdexcept>
  25
  26 // 4.4.x only
  27 struct c
  28 {
  29   void *m;
  30
  31   c(void* o = 0) : m(o) {}
  32   c(const c &r) : m(r.m) {}
  33
  34   c& operator=(const c &) = default;
  35
  36   template<class T>
  37     explicit c(T &o) : m((void*)0xdeadbeef) { }
  38 };
  39
  40 int main()
  41 {
  42   std::vector<c> cbs;
  43   const c cb((void*)0xcafebabe);
  44
  45   for (int fd = 62; fd < 67; ++fd)
  46     {
  47       cbs.resize(fd + 1);
  48       cbs[fd] = cb;
  49     }
  50
  51   for (int fd = 62; fd< 67; ++fd)
  52     if (cb.m != cbs[fd].m)
  53       throw std::runtime_error("wrong");
  54   return 0;
  55 }