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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 // <memory>
     11 
     12 // unique_ptr
     13 
     14 // test reset
     15 
     16 #include <memory>
     17 #include <cassert>
     18 
     19 struct A
     20 {
     21     static int count;
     22     A() {++count;}
     23     A(const A&) {++count;}
     24     ~A() {--count;}
     25 };
     26 
     27 int A::count = 0;
     28 
     29 int main()
     30 {
     31     {
     32     std::unique_ptr<A[]> p(new A[3]);
     33     assert(A::count == 3);
     34     A* i = p.get();
     35     assert(i != nullptr);
     36     p.reset();
     37     assert(A::count == 0);
     38     assert(p.get() == 0);
     39     }
     40     assert(A::count == 0);
     41     {
     42     std::unique_ptr<A[]> p(new A[4]);
     43     assert(A::count == 4);
     44     A* i = p.get();
     45     assert(i != nullptr);
     46     p.reset(new A[5]);
     47     assert(A::count == 5);
     48     }
     49     assert(A::count == 0);
     50 }
     51