Why null pointer is used?

0 Answers  

---

What is difference between malloc()/free() and new/delete?

0 Answers  

---

How would you implement a substr() function that extracts a sub string from a given string?

0 Answers  

---

what is difference between internet and Internet?

12 Answers   College School Exams Tests, Microsoft, MIT, TCS,

---

Do we have to use initialization list in spite of the assignment in constructors?

0 Answers  

---

What is #include cstdlib in c++?

0 Answers  

---

What is an adaptor class in c++?

0 Answers  

---

When should overload new operator on a global basis or a class basis?

0 Answers  

---

What is the extraction operator and what does it do?

0 Answers  

---

Explain mutable storage class specifier.

0 Answers  

---

What is Virtual Inheritance?

7 Answers   Amazon, Wipro,

---

class Foo { public: Foo(int i) { } }; class Bar : virtual Foo { public: Bar() { } }; Bar b; Referring to the above code, when the object 'b' is defined, a compiler error will occur. What action fixes the compiler error? a) Adding a virtual destructor to the class Bar b) Adding a constructor to Bar which takes an int parameter c) Adding "Foo()" to the Bar constructor d) Adding a copy constructor to the class Foo e) Adding "Foo(0)" to the Bar::Bar initializer list

2 Answers   Quark,

---