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  1. #include <iostream>
  2. #include <memory>
  3.  
  4. using namespace std;
  5.  
  6. class A {
  7.   public:
  8.     A(){}
  9.     int i;
  10.     int j;
  11. };
  12.  
  13. class B {
  14.   public:
  15.     B() = default;
  16.     int i;
  17.     int j;
  18. };
  19.  
  20. int main()
  21. {
  22.   cout << "1" << endl;
  23.   for( int i = 0; i < 3; ++i)
  24.   {
  25.     A* pa = new A();
  26.     B* pb = new B();
  27.     cout << "A : " << pa->i << "," << pa->j << endl;
  28.     cout << "B : " << pb->i << "," << pb->j << endl;
  29.     delete pa;
  30.     delete pb;
  31.   }
  32.   cout << "2" << endl;                                                                                                                                                                                                                         
  33.   for( int i = 0; i < 3; ++i)
  34.   {
  35.     shared_ptr<A> pa = make_shared<A>();
  36.     shared_ptr<B> pb = make_shared<B>();
  37.     cout << "A : " << pa->i << "," << pa->j << endl;
  38.     cout << "B : " << pb->i << "," << pb->j << endl;
  39.   }
  40.   cout << "3" << endl;
  41.   for( int i = 0; i < 3; ++i)
  42.   {
  43.     shared_ptr<A> pa ( new A() );
  44.     shared_ptr<B> pb ( new B() );
  45.     cout << "A : " << pa->i << "," << pa->j << endl;
  46.     cout << "B : " << pb->i << "," << pb->j << endl;
  47.   }
  48.   cout << "4" << endl;
  49.   for( int i = 0; i < 3; ++i)
  50.   {
  51.     shared_ptr<A> pa ( new A );
  52.     shared_ptr<B> pb ( new B );
  53.     cout << "A : " << pa->i << "," << pa->j << endl;
  54.     cout << "B : " << pb->i << "," << pb->j << endl;
  55.   }
  56.   return 0;
  57. }
  58.  
Success #stdin #stdout 0s 3236KB
comments (?)
stdin 
Standard input is empty
stdout 
1
A : 0,0
B : 0,0
A : 163729408,0
B : 0,0
A : 163729424,0
B : 0,0
2
A : 0,0
B : 0,0
A : 0,0
B : 0,0
A : 0,0
B : 0,0
3
A : 163729408,0
B : 0,0
A : 163729408,0
B : 0,0
A : 163729408,0
B : 0,0
4
A : 163729408,0
B : 0,0
A : 163729408,0
B : 0,0
A : 163729408,0
B : 0,0
https://ideone.com/jENkaf
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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