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  1. #include <iostream>
  2. #include <memory>
  3. #include <cstdlib>
  4.  
  5. struct test {
  6.     int x;
  7.     std::string s;
  8.  
  9.     void* operator new( std::size_t size) {
  10.         char * p = (char*) malloc( size );
  11.         for ( std::size_t i = 0; i < size; ++i ) {
  12.             p[i] = 0xba;
  13.         }
  14.         return p;
  15.     }
  16.     void operator delete(void* p) {
  17.         free(p);
  18.     }
  19. };
  20.  
  21. void f() {
  22.     test t;
  23.     std::cout << t.x << std::endl;
  24.     t.x = 5;
  25. }
  26.  
  27. void g() {
  28.     test t = test();
  29.     std::cout << t.x << std::endl;
  30.     t.x = 5;
  31. }
  32.  
  33. int main() {
  34.     std::auto_ptr<test> p1( new test );
  35.     std::cout << std::hex << p1->x << std::endl;
  36.  
  37.     std::auto_ptr<test> p2( new test() );
  38.     std::cout << std::hex << p2->x << std::endl;
  39.  
  40.     f(); f();
  41.     g(); g();
  42. }
  43.  
Success #stdin #stdout 0.02s 2856KB
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babababa
babababa
babababa
5
0
0
https://ideone.com/Xg3bW
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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