libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.obs/op_bracket.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <memory>
  10
  11 // UNSUPPORTED: c++03, c++11, c++14
  12
  13 // shared_ptr
  14
  15 // element_type& operator[](ptrdiff_t i) const;
  16
  17 #include "test_macros.h"
  18
  19 #include <memory>
  20 #include <cassert>
  21
  22 int main(int, char**) {
  23   {
  24     const std::shared_ptr<int[8]> p(new int[8]);
  25
  26     for (int i = 0; i < 8; ++i)
  27       p[i] = i;
  28     for (int i = 0; i < 8; ++i)
  29       assert(p[i] == i);
  30   }
  31   {
  32     int* iptr = new int[8];
  33     for (int i = 0; i < 8; ++i)
  34       iptr[i] = i;
  35
  36     const std::shared_ptr<int[8]> p(iptr);
  37
  38     for (int i = 0; i < 8; ++i)
  39       assert(p[i] == i);
  40   }
  41   {
  42     const std::shared_ptr<int[]> p(new int[8]);
  43
  44     for (int i = 0; i < 8; ++i)
  45       p[i] = i;
  46     for (int i = 0; i < 8; ++i)
  47       assert(p[i] == i);
  48   }
  49
  50   return 0;
  51 }