How do you show the declaration of a virtual constructor?

0 Answers  

---

What is the use of 'using' declaration in c++?

0 Answers  

---

class Alpha { public: char data[10000]; Alpha(); ~Alpha(); }; class Beta { public: Beta() { n = 0; } void FillData(Alpha a); private: int n; }; How do you make the above sample code more efficient? a) If possible, make the constructor for Beta private to reduce the overhead of public constructors. b) Change the return type in FillData to int to negate the implicit return conversion from "int" to "void". c) Make the destructor for Alpha virtual. d) Make the constructor for Alpha virtual. e) Pass a const reference to Alpha in FillData

2 Answers   Quark,

---

State two differences between C and C++.

0 Answers   Hexaware,

---

What are the uses of c++ in the real world?

0 Answers  

---

Should I learn c++ c?

0 Answers  

---

What are the types of STL containers?

4 Answers  

---

What is the fastest c++ compiler?

0 Answers  

---

Which c++ compiler is best?

0 Answers  

---

What is a built-in function?

1 Answers  

---

What is wrapper class in c++?

0 Answers  

---

What is a lambda function c++?

0 Answers  

---