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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // UNSUPPORTED: c++98, c++03, c++11
     11 #include <memory>
     12 #include <string>
     13 #include <cassert>
     14 
     15 //    The only way to create an unique_ptr<T[]> is to default construct them.
     16 
     17 class foo {
     18 public:
     19     foo () : val_(3) {}
     20     int get () const { return val_; }
     21 private:
     22     int val_;
     23     };
     24 
     25 int main()
     26 {
     27     {
     28     auto p1 = std::make_unique<int[]>(5);
     29     for ( int i = 0; i < 5; ++i )
     30         assert ( p1[i] == 0 );
     31     }
     32 
     33     {
     34     auto p2 = std::make_unique<std::string[]>(5);
     35     for ( int i = 0; i < 5; ++i )
     36         assert ( p2[i].size () == 0 );
     37     }
     38 
     39     {
     40     auto p3 = std::make_unique<foo[]>(7);
     41     for ( int i = 0; i < 7; ++i )
     42         assert ( p3[i].get () == 3 );
     43     }
     44 }
     45