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

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <memory>

// UNSUPPORTED: c++03, c++11, c++14

// shared_ptr

// element_type& operator[](ptrdiff_t i) const;

#include "test_macros.h"

#include <memory>
#include <cassert>

int main(int, char**) {
  {
    const std::shared_ptr<int[8]> p(new int[8]);

    for (int i = 0; i < 8; ++i)
      p[i] = i;
    for (int i = 0; i < 8; ++i)
      assert(p[i] == i);
  }
  {
    int* iptr = new int[8];
    for (int i = 0; i < 8; ++i)
      iptr[i] = i;

    const std::shared_ptr<int[8]> p(iptr);

    for (int i = 0; i < 8; ++i)
      assert(p[i] == i);
  }
  {
    const std::shared_ptr<int[]> p(new int[8]);

    for (int i = 0; i < 8; ++i)
      p[i] = i;
    for (int i = 0; i < 8; ++i)
      assert(p[i] == i);
  }

  return 0;
}