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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 // template <class T1, class D1, class T2, class D2>
     15 //   bool
     16 //   operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
     17 
     18 // template <class T1, class D1, class T2, class D2>
     19 //   bool
     20 //   operator!=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
     21 
     22 #include <memory>
     23 #include <cassert>
     24 
     25 #include "deleter_types.h"
     26 
     27 struct A
     28 {
     29     static int count;
     30     A() {++count;}
     31     A(const A&) {++count;}
     32     virtual ~A() {--count;}
     33 };
     34 
     35 int A::count = 0;
     36 
     37 struct B
     38     : public A
     39 {
     40     static int count;
     41     B() {++count;}
     42     B(const B&) {++count;}
     43     virtual ~B() {--count;}
     44 };
     45 
     46 int B::count = 0;
     47 
     48 int main()
     49 {
     50     {
     51     const std::unique_ptr<A, Deleter<A> > p1(new A);
     52     const std::unique_ptr<A, Deleter<A> > p2(new A);
     53     assert(!(p1 == p2));
     54     assert(p1 != p2);
     55     }
     56     {
     57     const std::unique_ptr<A, Deleter<A> > p1(new A);
     58     const std::unique_ptr<B, Deleter<B> > p2(new B);
     59     assert(!(p1 == p2));
     60     assert(p1 != p2);
     61     }
     62     {
     63     const std::unique_ptr<A[], Deleter<A[]> > p1(new A[3]);
     64     const std::unique_ptr<A[], Deleter<A[]> > p2(new A[3]);
     65     assert(!(p1 == p2));
     66     assert(p1 != p2);
     67     }
     68     {
     69     const std::unique_ptr<A[], Deleter<A[]> > p1(new A[3]);
     70     const std::unique_ptr<B[], Deleter<B[]> > p2(new B[3]);
     71     assert(!(p1 == p2));
     72     assert(p1 != p2);
     73     }
     74     {
     75     const std::unique_ptr<A, Deleter<A> > p1;
     76     const std::unique_ptr<A, Deleter<A> > p2;
     77     assert(p1 == p2);
     78     assert(!(p1 != p2));
     79     }
     80     {
     81     const std::unique_ptr<A, Deleter<A> > p1;
     82     const std::unique_ptr<B, Deleter<B> > p2;
     83     assert(p1 == p2);
     84     assert(!(p1 != p2));
     85     }
     86 }
     87