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class S { 
  int v; 
 
public: 
  S() : v(12) {} // Non-trivial constructor 
 
  void f(); 
};   
 
void f() { 
 
  // ...   
 
  goto bad_idea;   
 
  // ... 
 
  S s; // Control passes over the declaration, so initialization does not take place.   
 
  bad_idea: 
    s.f(); 
}

class S { 
  int v; 
 
public: 
  S() : v(12) {} // Non-trivial constructor 
  
  void f(); 
};   
 
void f() { 
  S s; 
 
  // ... 
 
  goto bad_idea; 
 
  // ... 
 
  bad_idea: 
    s.f(); 
}